cloud.rs

   1use anthropic::{AnthropicModelMode, parse_prompt_too_long};
   2use anyhow::{Result, anyhow};
   3use client::{Client, UserStore, zed_urls};
   4use collections::BTreeMap;
   5use feature_flags::{FeatureFlagAppExt, LlmClosedBetaFeatureFlag};
   6use futures::{
   7    AsyncBufReadExt, FutureExt, Stream, StreamExt, future::BoxFuture, stream::BoxStream,
   8};
   9use gpui::{
  10    AnyElement, AnyView, App, AsyncApp, Context, Entity, SemanticVersion, Subscription, Task,
  11};
  12use http_client::{AsyncBody, HttpClient, Method, Response, StatusCode};
  13use language_model::{
  14    AuthenticateError, CloudModel, LanguageModel, LanguageModelCacheConfiguration,
  15    LanguageModelCompletionError, LanguageModelId, LanguageModelKnownError, LanguageModelName,
  16    LanguageModelProviderId, LanguageModelProviderName, LanguageModelProviderState,
  17    LanguageModelProviderTosView, LanguageModelRequest, LanguageModelToolChoice,
  18    LanguageModelToolSchemaFormat, ModelRequestLimitReachedError, RateLimiter, RequestUsage,
  19    ZED_CLOUD_PROVIDER_ID,
  20};
  21use language_model::{
  22    LanguageModelAvailability, LanguageModelCompletionEvent, LanguageModelProvider, LlmApiToken,
  23    MaxMonthlySpendReachedError, PaymentRequiredError, RefreshLlmTokenListener,
  24};
  25use proto::Plan;
  26use release_channel::AppVersion;
  27use schemars::JsonSchema;
  28use serde::{Deserialize, Serialize, de::DeserializeOwned};
  29use settings::{Settings, SettingsStore};
  30use smol::Timer;
  31use smol::io::{AsyncReadExt, BufReader};
  32use std::pin::Pin;
  33use std::str::FromStr as _;
  34use std::{
  35    sync::{Arc, LazyLock},
  36    time::Duration,
  37};
  38use strum::IntoEnumIterator;
  39use thiserror::Error;
  40use ui::{TintColor, prelude::*};
  41use zed_llm_client::{
  42    CLIENT_SUPPORTS_STATUS_MESSAGES_HEADER_NAME, CURRENT_PLAN_HEADER_NAME, CompletionBody,
  43    CompletionRequestStatus, CountTokensBody, CountTokensResponse, EXPIRED_LLM_TOKEN_HEADER_NAME,
  44    MAX_LLM_MONTHLY_SPEND_REACHED_HEADER_NAME, MODEL_REQUESTS_RESOURCE_HEADER_VALUE,
  45    SERVER_SUPPORTS_STATUS_MESSAGES_HEADER_NAME, SUBSCRIPTION_LIMIT_RESOURCE_HEADER_NAME,
  46    TOOL_USE_LIMIT_REACHED_HEADER_NAME, ZED_VERSION_HEADER_NAME,
  47};
  48
  49use crate::AllLanguageModelSettings;
  50use crate::provider::anthropic::{AnthropicEventMapper, count_anthropic_tokens, into_anthropic};
  51use crate::provider::google::{GoogleEventMapper, into_google};
  52use crate::provider::open_ai::{OpenAiEventMapper, count_open_ai_tokens, into_open_ai};
  53
  54pub const PROVIDER_NAME: &str = "Zed";
  55
  56const ZED_CLOUD_PROVIDER_ADDITIONAL_MODELS_JSON: Option<&str> =
  57    option_env!("ZED_CLOUD_PROVIDER_ADDITIONAL_MODELS_JSON");
  58
  59fn zed_cloud_provider_additional_models() -> &'static [AvailableModel] {
  60    static ADDITIONAL_MODELS: LazyLock<Vec<AvailableModel>> = LazyLock::new(|| {
  61        ZED_CLOUD_PROVIDER_ADDITIONAL_MODELS_JSON
  62            .map(|json| serde_json::from_str(json).unwrap())
  63            .unwrap_or_default()
  64    });
  65    ADDITIONAL_MODELS.as_slice()
  66}
  67
  68#[derive(Default, Clone, Debug, PartialEq)]
  69pub struct ZedDotDevSettings {
  70    pub available_models: Vec<AvailableModel>,
  71}
  72
  73#[derive(Clone, Debug, PartialEq, Serialize, Deserialize, JsonSchema)]
  74#[serde(rename_all = "lowercase")]
  75pub enum AvailableProvider {
  76    Anthropic,
  77    OpenAi,
  78    Google,
  79}
  80
  81#[derive(Clone, Debug, PartialEq, Serialize, Deserialize, JsonSchema)]
  82pub struct AvailableModel {
  83    /// The provider of the language model.
  84    pub provider: AvailableProvider,
  85    /// The model's name in the provider's API. e.g. claude-3-5-sonnet-20240620
  86    pub name: String,
  87    /// The name displayed in the UI, such as in the assistant panel model dropdown menu.
  88    pub display_name: Option<String>,
  89    /// The size of the context window, indicating the maximum number of tokens the model can process.
  90    pub max_tokens: usize,
  91    /// The maximum number of output tokens allowed by the model.
  92    pub max_output_tokens: Option<u32>,
  93    /// The maximum number of completion tokens allowed by the model (o1-* only)
  94    pub max_completion_tokens: Option<u32>,
  95    /// Override this model with a different Anthropic model for tool calls.
  96    pub tool_override: Option<String>,
  97    /// Indicates whether this custom model supports caching.
  98    pub cache_configuration: Option<LanguageModelCacheConfiguration>,
  99    /// The default temperature to use for this model.
 100    pub default_temperature: Option<f32>,
 101    /// Any extra beta headers to provide when using the model.
 102    #[serde(default)]
 103    pub extra_beta_headers: Vec<String>,
 104    /// The model's mode (e.g. thinking)
 105    pub mode: Option<ModelMode>,
 106}
 107
 108#[derive(Default, Clone, Debug, PartialEq, Serialize, Deserialize, JsonSchema)]
 109#[serde(tag = "type", rename_all = "lowercase")]
 110pub enum ModelMode {
 111    #[default]
 112    Default,
 113    Thinking {
 114        /// The maximum number of tokens to use for reasoning. Must be lower than the model's `max_output_tokens`.
 115        budget_tokens: Option<u32>,
 116    },
 117}
 118
 119impl From<ModelMode> for AnthropicModelMode {
 120    fn from(value: ModelMode) -> Self {
 121        match value {
 122            ModelMode::Default => AnthropicModelMode::Default,
 123            ModelMode::Thinking { budget_tokens } => AnthropicModelMode::Thinking { budget_tokens },
 124        }
 125    }
 126}
 127
 128pub struct CloudLanguageModelProvider {
 129    client: Arc<Client>,
 130    state: gpui::Entity<State>,
 131    _maintain_client_status: Task<()>,
 132}
 133
 134pub struct State {
 135    client: Arc<Client>,
 136    llm_api_token: LlmApiToken,
 137    user_store: Entity<UserStore>,
 138    status: client::Status,
 139    accept_terms: Option<Task<Result<()>>>,
 140    _settings_subscription: Subscription,
 141    _llm_token_subscription: Subscription,
 142}
 143
 144impl State {
 145    fn new(
 146        client: Arc<Client>,
 147        user_store: Entity<UserStore>,
 148        status: client::Status,
 149        cx: &mut Context<Self>,
 150    ) -> Self {
 151        let refresh_llm_token_listener = RefreshLlmTokenListener::global(cx);
 152
 153        Self {
 154            client: client.clone(),
 155            llm_api_token: LlmApiToken::default(),
 156            user_store,
 157            status,
 158            accept_terms: None,
 159            _settings_subscription: cx.observe_global::<SettingsStore>(|_, cx| {
 160                cx.notify();
 161            }),
 162            _llm_token_subscription: cx.subscribe(
 163                &refresh_llm_token_listener,
 164                |this, _listener, _event, cx| {
 165                    let client = this.client.clone();
 166                    let llm_api_token = this.llm_api_token.clone();
 167                    cx.spawn(async move |_this, _cx| {
 168                        llm_api_token.refresh(&client).await?;
 169                        anyhow::Ok(())
 170                    })
 171                    .detach_and_log_err(cx);
 172                },
 173            ),
 174        }
 175    }
 176
 177    fn is_signed_out(&self) -> bool {
 178        self.status.is_signed_out()
 179    }
 180
 181    fn authenticate(&self, cx: &mut Context<Self>) -> Task<Result<()>> {
 182        let client = self.client.clone();
 183        cx.spawn(async move |this, cx| {
 184            client.authenticate_and_connect(true, &cx).await?;
 185            this.update(cx, |_, cx| cx.notify())
 186        })
 187    }
 188
 189    fn has_accepted_terms_of_service(&self, cx: &App) -> bool {
 190        self.user_store
 191            .read(cx)
 192            .current_user_has_accepted_terms()
 193            .unwrap_or(false)
 194    }
 195
 196    fn accept_terms_of_service(&mut self, cx: &mut Context<Self>) {
 197        let user_store = self.user_store.clone();
 198        self.accept_terms = Some(cx.spawn(async move |this, cx| {
 199            let _ = user_store
 200                .update(cx, |store, cx| store.accept_terms_of_service(cx))?
 201                .await;
 202            this.update(cx, |this, cx| {
 203                this.accept_terms = None;
 204                cx.notify()
 205            })
 206        }));
 207    }
 208}
 209
 210impl CloudLanguageModelProvider {
 211    pub fn new(user_store: Entity<UserStore>, client: Arc<Client>, cx: &mut App) -> Self {
 212        let mut status_rx = client.status();
 213        let status = *status_rx.borrow();
 214
 215        let state = cx.new(|cx| State::new(client.clone(), user_store.clone(), status, cx));
 216
 217        let state_ref = state.downgrade();
 218        let maintain_client_status = cx.spawn(async move |cx| {
 219            while let Some(status) = status_rx.next().await {
 220                if let Some(this) = state_ref.upgrade() {
 221                    _ = this.update(cx, |this, cx| {
 222                        if this.status != status {
 223                            this.status = status;
 224                            cx.notify();
 225                        }
 226                    });
 227                } else {
 228                    break;
 229                }
 230            }
 231        });
 232
 233        Self {
 234            client,
 235            state: state.clone(),
 236            _maintain_client_status: maintain_client_status,
 237        }
 238    }
 239
 240    fn create_language_model(
 241        &self,
 242        model: CloudModel,
 243        llm_api_token: LlmApiToken,
 244    ) -> Arc<dyn LanguageModel> {
 245        Arc::new(CloudLanguageModel {
 246            id: LanguageModelId::from(model.id().to_string()),
 247            model,
 248            llm_api_token: llm_api_token.clone(),
 249            client: self.client.clone(),
 250            request_limiter: RateLimiter::new(4),
 251        })
 252    }
 253}
 254
 255impl LanguageModelProviderState for CloudLanguageModelProvider {
 256    type ObservableEntity = State;
 257
 258    fn observable_entity(&self) -> Option<gpui::Entity<Self::ObservableEntity>> {
 259        Some(self.state.clone())
 260    }
 261}
 262
 263impl LanguageModelProvider for CloudLanguageModelProvider {
 264    fn id(&self) -> LanguageModelProviderId {
 265        LanguageModelProviderId(ZED_CLOUD_PROVIDER_ID.into())
 266    }
 267
 268    fn name(&self) -> LanguageModelProviderName {
 269        LanguageModelProviderName(PROVIDER_NAME.into())
 270    }
 271
 272    fn icon(&self) -> IconName {
 273        IconName::AiZed
 274    }
 275
 276    fn default_model(&self, cx: &App) -> Option<Arc<dyn LanguageModel>> {
 277        let llm_api_token = self.state.read(cx).llm_api_token.clone();
 278        let model = CloudModel::Anthropic(anthropic::Model::Claude3_7Sonnet);
 279        Some(self.create_language_model(model, llm_api_token))
 280    }
 281
 282    fn default_fast_model(&self, cx: &App) -> Option<Arc<dyn LanguageModel>> {
 283        let llm_api_token = self.state.read(cx).llm_api_token.clone();
 284        let model = CloudModel::Anthropic(anthropic::Model::Claude3_5Sonnet);
 285        Some(self.create_language_model(model, llm_api_token))
 286    }
 287
 288    fn recommended_models(&self, cx: &App) -> Vec<Arc<dyn LanguageModel>> {
 289        let llm_api_token = self.state.read(cx).llm_api_token.clone();
 290        [
 291            CloudModel::Anthropic(anthropic::Model::Claude3_7Sonnet),
 292            CloudModel::Anthropic(anthropic::Model::Claude3_7SonnetThinking),
 293        ]
 294        .into_iter()
 295        .map(|model| self.create_language_model(model, llm_api_token.clone()))
 296        .collect()
 297    }
 298
 299    fn provided_models(&self, cx: &App) -> Vec<Arc<dyn LanguageModel>> {
 300        let mut models = BTreeMap::default();
 301
 302        if cx.is_staff() {
 303            for model in anthropic::Model::iter() {
 304                if !matches!(model, anthropic::Model::Custom { .. }) {
 305                    models.insert(model.id().to_string(), CloudModel::Anthropic(model));
 306                }
 307            }
 308            for model in open_ai::Model::iter() {
 309                if !matches!(model, open_ai::Model::Custom { .. }) {
 310                    models.insert(model.id().to_string(), CloudModel::OpenAi(model));
 311                }
 312            }
 313            for model in google_ai::Model::iter() {
 314                if !matches!(model, google_ai::Model::Custom { .. }) {
 315                    models.insert(model.id().to_string(), CloudModel::Google(model));
 316                }
 317            }
 318        } else {
 319            models.insert(
 320                anthropic::Model::Claude3_5Sonnet.id().to_string(),
 321                CloudModel::Anthropic(anthropic::Model::Claude3_5Sonnet),
 322            );
 323            models.insert(
 324                anthropic::Model::Claude3_7Sonnet.id().to_string(),
 325                CloudModel::Anthropic(anthropic::Model::Claude3_7Sonnet),
 326            );
 327            models.insert(
 328                anthropic::Model::Claude3_7SonnetThinking.id().to_string(),
 329                CloudModel::Anthropic(anthropic::Model::Claude3_7SonnetThinking),
 330            );
 331        }
 332
 333        let llm_closed_beta_models = if cx.has_flag::<LlmClosedBetaFeatureFlag>() {
 334            zed_cloud_provider_additional_models()
 335        } else {
 336            &[]
 337        };
 338
 339        // Override with available models from settings
 340        for model in AllLanguageModelSettings::get_global(cx)
 341            .zed_dot_dev
 342            .available_models
 343            .iter()
 344            .chain(llm_closed_beta_models)
 345            .cloned()
 346        {
 347            let model = match model.provider {
 348                AvailableProvider::Anthropic => CloudModel::Anthropic(anthropic::Model::Custom {
 349                    name: model.name.clone(),
 350                    display_name: model.display_name.clone(),
 351                    max_tokens: model.max_tokens,
 352                    tool_override: model.tool_override.clone(),
 353                    cache_configuration: model.cache_configuration.as_ref().map(|config| {
 354                        anthropic::AnthropicModelCacheConfiguration {
 355                            max_cache_anchors: config.max_cache_anchors,
 356                            should_speculate: config.should_speculate,
 357                            min_total_token: config.min_total_token,
 358                        }
 359                    }),
 360                    default_temperature: model.default_temperature,
 361                    max_output_tokens: model.max_output_tokens,
 362                    extra_beta_headers: model.extra_beta_headers.clone(),
 363                    mode: model.mode.unwrap_or_default().into(),
 364                }),
 365                AvailableProvider::OpenAi => CloudModel::OpenAi(open_ai::Model::Custom {
 366                    name: model.name.clone(),
 367                    display_name: model.display_name.clone(),
 368                    max_tokens: model.max_tokens,
 369                    max_output_tokens: model.max_output_tokens,
 370                    max_completion_tokens: model.max_completion_tokens,
 371                }),
 372                AvailableProvider::Google => CloudModel::Google(google_ai::Model::Custom {
 373                    name: model.name.clone(),
 374                    display_name: model.display_name.clone(),
 375                    max_tokens: model.max_tokens,
 376                }),
 377            };
 378            models.insert(model.id().to_string(), model.clone());
 379        }
 380
 381        let llm_api_token = self.state.read(cx).llm_api_token.clone();
 382        models
 383            .into_values()
 384            .map(|model| self.create_language_model(model, llm_api_token.clone()))
 385            .collect()
 386    }
 387
 388    fn is_authenticated(&self, cx: &App) -> bool {
 389        !self.state.read(cx).is_signed_out()
 390    }
 391
 392    fn authenticate(&self, _cx: &mut App) -> Task<Result<(), AuthenticateError>> {
 393        Task::ready(Ok(()))
 394    }
 395
 396    fn configuration_view(&self, _: &mut Window, cx: &mut App) -> AnyView {
 397        cx.new(|_| ConfigurationView {
 398            state: self.state.clone(),
 399        })
 400        .into()
 401    }
 402
 403    fn must_accept_terms(&self, cx: &App) -> bool {
 404        !self.state.read(cx).has_accepted_terms_of_service(cx)
 405    }
 406
 407    fn render_accept_terms(
 408        &self,
 409        view: LanguageModelProviderTosView,
 410        cx: &mut App,
 411    ) -> Option<AnyElement> {
 412        render_accept_terms(self.state.clone(), view, cx)
 413    }
 414
 415    fn reset_credentials(&self, _cx: &mut App) -> Task<Result<()>> {
 416        Task::ready(Ok(()))
 417    }
 418}
 419
 420fn render_accept_terms(
 421    state: Entity<State>,
 422    view_kind: LanguageModelProviderTosView,
 423    cx: &mut App,
 424) -> Option<AnyElement> {
 425    if state.read(cx).has_accepted_terms_of_service(cx) {
 426        return None;
 427    }
 428
 429    let accept_terms_disabled = state.read(cx).accept_terms.is_some();
 430
 431    let thread_fresh_start = matches!(view_kind, LanguageModelProviderTosView::ThreadFreshStart);
 432    let thread_empty_state = matches!(view_kind, LanguageModelProviderTosView::ThreadtEmptyState);
 433
 434    let terms_button = Button::new("terms_of_service", "Terms of Service")
 435        .style(ButtonStyle::Subtle)
 436        .icon(IconName::ArrowUpRight)
 437        .icon_color(Color::Muted)
 438        .icon_size(IconSize::XSmall)
 439        .when(thread_empty_state, |this| this.label_size(LabelSize::Small))
 440        .on_click(move |_, _window, cx| cx.open_url("https://zed.dev/terms-of-service"));
 441
 442    let button_container = h_flex().child(
 443        Button::new("accept_terms", "I accept the Terms of Service")
 444            .when(!thread_empty_state, |this| {
 445                this.full_width()
 446                    .style(ButtonStyle::Tinted(TintColor::Accent))
 447                    .icon(IconName::Check)
 448                    .icon_position(IconPosition::Start)
 449                    .icon_size(IconSize::Small)
 450            })
 451            .when(thread_empty_state, |this| {
 452                this.style(ButtonStyle::Tinted(TintColor::Warning))
 453                    .label_size(LabelSize::Small)
 454            })
 455            .disabled(accept_terms_disabled)
 456            .on_click({
 457                let state = state.downgrade();
 458                move |_, _window, cx| {
 459                    state
 460                        .update(cx, |state, cx| state.accept_terms_of_service(cx))
 461                        .ok();
 462                }
 463            }),
 464    );
 465
 466    let form = if thread_empty_state {
 467        h_flex()
 468            .w_full()
 469            .flex_wrap()
 470            .justify_between()
 471            .child(
 472                h_flex()
 473                    .child(
 474                        Label::new("To start using Zed AI, please read and accept the")
 475                            .size(LabelSize::Small),
 476                    )
 477                    .child(terms_button),
 478            )
 479            .child(button_container)
 480    } else {
 481        v_flex()
 482            .w_full()
 483            .gap_2()
 484            .child(
 485                h_flex()
 486                    .flex_wrap()
 487                    .when(thread_fresh_start, |this| this.justify_center())
 488                    .child(Label::new(
 489                        "To start using Zed AI, please read and accept the",
 490                    ))
 491                    .child(terms_button),
 492            )
 493            .child({
 494                match view_kind {
 495                    LanguageModelProviderTosView::PromptEditorPopup => {
 496                        button_container.w_full().justify_end()
 497                    }
 498                    LanguageModelProviderTosView::Configuration => {
 499                        button_container.w_full().justify_start()
 500                    }
 501                    LanguageModelProviderTosView::ThreadFreshStart => {
 502                        button_container.w_full().justify_center()
 503                    }
 504                    LanguageModelProviderTosView::ThreadtEmptyState => div().w_0(),
 505                }
 506            })
 507    };
 508
 509    Some(form.into_any())
 510}
 511
 512pub struct CloudLanguageModel {
 513    id: LanguageModelId,
 514    model: CloudModel,
 515    llm_api_token: LlmApiToken,
 516    client: Arc<Client>,
 517    request_limiter: RateLimiter,
 518}
 519
 520struct PerformLlmCompletionResponse {
 521    response: Response<AsyncBody>,
 522    usage: Option<RequestUsage>,
 523    tool_use_limit_reached: bool,
 524    includes_status_messages: bool,
 525}
 526
 527impl CloudLanguageModel {
 528    const MAX_RETRIES: usize = 3;
 529
 530    async fn perform_llm_completion(
 531        client: Arc<Client>,
 532        llm_api_token: LlmApiToken,
 533        app_version: Option<SemanticVersion>,
 534        body: CompletionBody,
 535    ) -> Result<PerformLlmCompletionResponse> {
 536        let http_client = &client.http_client();
 537
 538        let mut token = llm_api_token.acquire(&client).await?;
 539        let mut retries_remaining = Self::MAX_RETRIES;
 540        let mut retry_delay = Duration::from_secs(1);
 541
 542        loop {
 543            let request_builder = http_client::Request::builder().method(Method::POST);
 544            let request_builder = if let Ok(completions_url) = std::env::var("ZED_COMPLETIONS_URL")
 545            {
 546                request_builder.uri(completions_url)
 547            } else {
 548                request_builder.uri(http_client.build_zed_llm_url("/completions", &[])?.as_ref())
 549            };
 550            let request_builder = if let Some(app_version) = app_version {
 551                request_builder.header(ZED_VERSION_HEADER_NAME, app_version.to_string())
 552            } else {
 553                request_builder
 554            };
 555
 556            let request = request_builder
 557                .header("Content-Type", "application/json")
 558                .header("Authorization", format!("Bearer {token}"))
 559                .header(CLIENT_SUPPORTS_STATUS_MESSAGES_HEADER_NAME, "true")
 560                .body(serde_json::to_string(&body)?.into())?;
 561            let mut response = http_client.send(request).await?;
 562            let status = response.status();
 563            if status.is_success() {
 564                let includes_status_messages = response
 565                    .headers()
 566                    .get(SERVER_SUPPORTS_STATUS_MESSAGES_HEADER_NAME)
 567                    .is_some();
 568
 569                let tool_use_limit_reached = response
 570                    .headers()
 571                    .get(TOOL_USE_LIMIT_REACHED_HEADER_NAME)
 572                    .is_some();
 573
 574                let usage = if includes_status_messages {
 575                    None
 576                } else {
 577                    RequestUsage::from_headers(response.headers()).ok()
 578                };
 579
 580                return Ok(PerformLlmCompletionResponse {
 581                    response,
 582                    usage,
 583                    includes_status_messages,
 584                    tool_use_limit_reached,
 585                });
 586            } else if response
 587                .headers()
 588                .get(EXPIRED_LLM_TOKEN_HEADER_NAME)
 589                .is_some()
 590            {
 591                retries_remaining -= 1;
 592                token = llm_api_token.refresh(&client).await?;
 593            } else if status == StatusCode::FORBIDDEN
 594                && response
 595                    .headers()
 596                    .get(MAX_LLM_MONTHLY_SPEND_REACHED_HEADER_NAME)
 597                    .is_some()
 598            {
 599                return Err(anyhow!(MaxMonthlySpendReachedError));
 600            } else if status == StatusCode::FORBIDDEN
 601                && response
 602                    .headers()
 603                    .get(SUBSCRIPTION_LIMIT_RESOURCE_HEADER_NAME)
 604                    .is_some()
 605            {
 606                if let Some(MODEL_REQUESTS_RESOURCE_HEADER_VALUE) = response
 607                    .headers()
 608                    .get(SUBSCRIPTION_LIMIT_RESOURCE_HEADER_NAME)
 609                    .and_then(|resource| resource.to_str().ok())
 610                {
 611                    if let Some(plan) = response
 612                        .headers()
 613                        .get(CURRENT_PLAN_HEADER_NAME)
 614                        .and_then(|plan| plan.to_str().ok())
 615                        .and_then(|plan| zed_llm_client::Plan::from_str(plan).ok())
 616                    {
 617                        let plan = match plan {
 618                            zed_llm_client::Plan::Free => Plan::Free,
 619                            zed_llm_client::Plan::ZedPro => Plan::ZedPro,
 620                            zed_llm_client::Plan::ZedProTrial => Plan::ZedProTrial,
 621                        };
 622                        return Err(anyhow!(ModelRequestLimitReachedError { plan }));
 623                    }
 624                }
 625
 626                return Err(anyhow!("Forbidden"));
 627            } else if status.as_u16() >= 500 && status.as_u16() < 600 {
 628                // If we encounter an error in the 500 range, retry after a delay.
 629                // We've seen at least these in the wild from API providers:
 630                // * 500 Internal Server Error
 631                // * 502 Bad Gateway
 632                // * 529 Service Overloaded
 633
 634                if retries_remaining == 0 {
 635                    let mut body = String::new();
 636                    response.body_mut().read_to_string(&mut body).await?;
 637                    return Err(anyhow!(
 638                        "cloud language model completion failed after {} retries with status {status}: {body}",
 639                        Self::MAX_RETRIES
 640                    ));
 641                }
 642
 643                Timer::after(retry_delay).await;
 644
 645                retries_remaining -= 1;
 646                retry_delay *= 2; // If it fails again, wait longer.
 647            } else if status == StatusCode::PAYMENT_REQUIRED {
 648                return Err(anyhow!(PaymentRequiredError));
 649            } else {
 650                let mut body = String::new();
 651                response.body_mut().read_to_string(&mut body).await?;
 652                return Err(anyhow!(ApiError { status, body }));
 653            }
 654        }
 655    }
 656}
 657
 658#[derive(Debug, Error)]
 659#[error("cloud language model request failed with status {status}: {body}")]
 660struct ApiError {
 661    status: StatusCode,
 662    body: String,
 663}
 664
 665impl LanguageModel for CloudLanguageModel {
 666    fn id(&self) -> LanguageModelId {
 667        self.id.clone()
 668    }
 669
 670    fn name(&self) -> LanguageModelName {
 671        LanguageModelName::from(self.model.display_name().to_string())
 672    }
 673
 674    fn provider_id(&self) -> LanguageModelProviderId {
 675        LanguageModelProviderId(ZED_CLOUD_PROVIDER_ID.into())
 676    }
 677
 678    fn provider_name(&self) -> LanguageModelProviderName {
 679        LanguageModelProviderName(PROVIDER_NAME.into())
 680    }
 681
 682    fn supports_tools(&self) -> bool {
 683        match self.model {
 684            CloudModel::Anthropic(_) => true,
 685            CloudModel::Google(_) => true,
 686            CloudModel::OpenAi(_) => true,
 687        }
 688    }
 689
 690    fn supports_images(&self) -> bool {
 691        match self.model {
 692            CloudModel::Anthropic(_) => true,
 693            CloudModel::Google(_) => true,
 694            CloudModel::OpenAi(_) => false,
 695        }
 696    }
 697
 698    fn supports_tool_choice(&self, choice: LanguageModelToolChoice) -> bool {
 699        match choice {
 700            LanguageModelToolChoice::Auto
 701            | LanguageModelToolChoice::Any
 702            | LanguageModelToolChoice::None => true,
 703        }
 704    }
 705
 706    fn telemetry_id(&self) -> String {
 707        format!("zed.dev/{}", self.model.id())
 708    }
 709
 710    fn availability(&self) -> LanguageModelAvailability {
 711        self.model.availability()
 712    }
 713
 714    fn tool_input_format(&self) -> LanguageModelToolSchemaFormat {
 715        self.model.tool_input_format()
 716    }
 717
 718    fn max_token_count(&self) -> usize {
 719        self.model.max_token_count()
 720    }
 721
 722    fn cache_configuration(&self) -> Option<LanguageModelCacheConfiguration> {
 723        match &self.model {
 724            CloudModel::Anthropic(model) => {
 725                model
 726                    .cache_configuration()
 727                    .map(|cache| LanguageModelCacheConfiguration {
 728                        max_cache_anchors: cache.max_cache_anchors,
 729                        should_speculate: cache.should_speculate,
 730                        min_total_token: cache.min_total_token,
 731                    })
 732            }
 733            CloudModel::OpenAi(_) | CloudModel::Google(_) => None,
 734        }
 735    }
 736
 737    fn count_tokens(
 738        &self,
 739        request: LanguageModelRequest,
 740        cx: &App,
 741    ) -> BoxFuture<'static, Result<usize>> {
 742        match self.model.clone() {
 743            CloudModel::Anthropic(_) => count_anthropic_tokens(request, cx),
 744            CloudModel::OpenAi(model) => count_open_ai_tokens(request, model, cx),
 745            CloudModel::Google(model) => {
 746                let client = self.client.clone();
 747                let llm_api_token = self.llm_api_token.clone();
 748                let model_id = model.id().to_string();
 749                let generate_content_request = into_google(request, model_id.clone());
 750                async move {
 751                    let http_client = &client.http_client();
 752                    let token = llm_api_token.acquire(&client).await?;
 753
 754                    let request_builder = http_client::Request::builder().method(Method::POST);
 755                    let request_builder =
 756                        if let Ok(completions_url) = std::env::var("ZED_COUNT_TOKENS_URL") {
 757                            request_builder.uri(completions_url)
 758                        } else {
 759                            request_builder.uri(
 760                                http_client
 761                                    .build_zed_llm_url("/count_tokens", &[])?
 762                                    .as_ref(),
 763                            )
 764                        };
 765                    let request_body = CountTokensBody {
 766                        provider: zed_llm_client::LanguageModelProvider::Google,
 767                        model: model_id,
 768                        provider_request: serde_json::to_value(&google_ai::CountTokensRequest {
 769                            generate_content_request,
 770                        })?,
 771                    };
 772                    let request = request_builder
 773                        .header("Content-Type", "application/json")
 774                        .header("Authorization", format!("Bearer {token}"))
 775                        .body(serde_json::to_string(&request_body)?.into())?;
 776                    let mut response = http_client.send(request).await?;
 777                    let status = response.status();
 778                    let mut response_body = String::new();
 779                    response
 780                        .body_mut()
 781                        .read_to_string(&mut response_body)
 782                        .await?;
 783
 784                    if status.is_success() {
 785                        let response_body: CountTokensResponse =
 786                            serde_json::from_str(&response_body)?;
 787
 788                        Ok(response_body.tokens)
 789                    } else {
 790                        Err(anyhow!(ApiError {
 791                            status,
 792                            body: response_body
 793                        }))
 794                    }
 795                }
 796                .boxed()
 797            }
 798        }
 799    }
 800
 801    fn stream_completion(
 802        &self,
 803        request: LanguageModelRequest,
 804        cx: &AsyncApp,
 805    ) -> BoxFuture<
 806        'static,
 807        Result<
 808            BoxStream<'static, Result<LanguageModelCompletionEvent, LanguageModelCompletionError>>,
 809        >,
 810    > {
 811        let thread_id = request.thread_id.clone();
 812        let prompt_id = request.prompt_id.clone();
 813        let mode = request.mode;
 814        let app_version = cx.update(|cx| AppVersion::global(cx)).ok();
 815        match &self.model {
 816            CloudModel::Anthropic(model) => {
 817                let request = into_anthropic(
 818                    request,
 819                    model.request_id().into(),
 820                    model.default_temperature(),
 821                    model.max_output_tokens(),
 822                    model.mode(),
 823                );
 824                let client = self.client.clone();
 825                let llm_api_token = self.llm_api_token.clone();
 826                let future = self.request_limiter.stream(async move {
 827                    let PerformLlmCompletionResponse {
 828                        response,
 829                        usage,
 830                        includes_status_messages,
 831                        tool_use_limit_reached,
 832                    } = Self::perform_llm_completion(
 833                        client.clone(),
 834                        llm_api_token,
 835                        app_version,
 836                        CompletionBody {
 837                            thread_id,
 838                            prompt_id,
 839                            mode,
 840                            provider: zed_llm_client::LanguageModelProvider::Anthropic,
 841                            model: request.model.clone(),
 842                            provider_request: serde_json::to_value(&request)?,
 843                        },
 844                    )
 845                    .await
 846                    .map_err(|err| match err.downcast::<ApiError>() {
 847                        Ok(api_err) => {
 848                            if api_err.status == StatusCode::BAD_REQUEST {
 849                                if let Some(tokens) = parse_prompt_too_long(&api_err.body) {
 850                                    return anyhow!(
 851                                        LanguageModelKnownError::ContextWindowLimitExceeded {
 852                                            tokens
 853                                        }
 854                                    );
 855                                }
 856                            }
 857                            anyhow!(api_err)
 858                        }
 859                        Err(err) => anyhow!(err),
 860                    })?;
 861
 862                    let mut mapper = AnthropicEventMapper::new();
 863                    Ok(map_cloud_completion_events(
 864                        Box::pin(
 865                            response_lines(response, includes_status_messages)
 866                                .chain(usage_updated_event(usage))
 867                                .chain(tool_use_limit_reached_event(tool_use_limit_reached)),
 868                        ),
 869                        move |event| mapper.map_event(event),
 870                    ))
 871                });
 872                async move { Ok(future.await?.boxed()) }.boxed()
 873            }
 874            CloudModel::OpenAi(model) => {
 875                let client = self.client.clone();
 876                let request = into_open_ai(request, model, model.max_output_tokens());
 877                let llm_api_token = self.llm_api_token.clone();
 878                let future = self.request_limiter.stream(async move {
 879                    let PerformLlmCompletionResponse {
 880                        response,
 881                        usage,
 882                        includes_status_messages,
 883                        tool_use_limit_reached,
 884                    } = Self::perform_llm_completion(
 885                        client.clone(),
 886                        llm_api_token,
 887                        app_version,
 888                        CompletionBody {
 889                            thread_id,
 890                            prompt_id,
 891                            mode,
 892                            provider: zed_llm_client::LanguageModelProvider::OpenAi,
 893                            model: request.model.clone(),
 894                            provider_request: serde_json::to_value(&request)?,
 895                        },
 896                    )
 897                    .await?;
 898
 899                    let mut mapper = OpenAiEventMapper::new();
 900                    Ok(map_cloud_completion_events(
 901                        Box::pin(
 902                            response_lines(response, includes_status_messages)
 903                                .chain(usage_updated_event(usage))
 904                                .chain(tool_use_limit_reached_event(tool_use_limit_reached)),
 905                        ),
 906                        move |event| mapper.map_event(event),
 907                    ))
 908                });
 909                async move { Ok(future.await?.boxed()) }.boxed()
 910            }
 911            CloudModel::Google(model) => {
 912                let client = self.client.clone();
 913                let request = into_google(request, model.id().into());
 914                let llm_api_token = self.llm_api_token.clone();
 915                let future = self.request_limiter.stream(async move {
 916                    let PerformLlmCompletionResponse {
 917                        response,
 918                        usage,
 919                        includes_status_messages,
 920                        tool_use_limit_reached,
 921                    } = Self::perform_llm_completion(
 922                        client.clone(),
 923                        llm_api_token,
 924                        app_version,
 925                        CompletionBody {
 926                            thread_id,
 927                            prompt_id,
 928                            mode,
 929                            provider: zed_llm_client::LanguageModelProvider::Google,
 930                            model: request.model.model_id.clone(),
 931                            provider_request: serde_json::to_value(&request)?,
 932                        },
 933                    )
 934                    .await?;
 935
 936                    let mut mapper = GoogleEventMapper::new();
 937                    Ok(map_cloud_completion_events(
 938                        Box::pin(
 939                            response_lines(response, includes_status_messages)
 940                                .chain(usage_updated_event(usage))
 941                                .chain(tool_use_limit_reached_event(tool_use_limit_reached)),
 942                        ),
 943                        move |event| mapper.map_event(event),
 944                    ))
 945                });
 946                async move { Ok(future.await?.boxed()) }.boxed()
 947            }
 948        }
 949    }
 950}
 951
 952#[derive(Serialize, Deserialize)]
 953#[serde(rename_all = "snake_case")]
 954pub enum CloudCompletionEvent<T> {
 955    Status(CompletionRequestStatus),
 956    Event(T),
 957}
 958
 959fn map_cloud_completion_events<T, F>(
 960    stream: Pin<Box<dyn Stream<Item = Result<CloudCompletionEvent<T>>> + Send>>,
 961    mut map_callback: F,
 962) -> BoxStream<'static, Result<LanguageModelCompletionEvent, LanguageModelCompletionError>>
 963where
 964    T: DeserializeOwned + 'static,
 965    F: FnMut(T) -> Vec<Result<LanguageModelCompletionEvent, LanguageModelCompletionError>>
 966        + Send
 967        + 'static,
 968{
 969    stream
 970        .flat_map(move |event| {
 971            futures::stream::iter(match event {
 972                Err(error) => {
 973                    vec![Err(LanguageModelCompletionError::Other(error))]
 974                }
 975                Ok(CloudCompletionEvent::Status(event)) => {
 976                    vec![Ok(LanguageModelCompletionEvent::StatusUpdate(event))]
 977                }
 978                Ok(CloudCompletionEvent::Event(event)) => map_callback(event),
 979            })
 980        })
 981        .boxed()
 982}
 983
 984fn usage_updated_event<T>(
 985    usage: Option<RequestUsage>,
 986) -> impl Stream<Item = Result<CloudCompletionEvent<T>>> {
 987    futures::stream::iter(usage.map(|usage| {
 988        Ok(CloudCompletionEvent::Status(
 989            CompletionRequestStatus::UsageUpdated {
 990                amount: usage.amount as usize,
 991                limit: usage.limit,
 992            },
 993        ))
 994    }))
 995}
 996
 997fn tool_use_limit_reached_event<T>(
 998    tool_use_limit_reached: bool,
 999) -> impl Stream<Item = Result<CloudCompletionEvent<T>>> {
1000    futures::stream::iter(tool_use_limit_reached.then(|| {
1001        Ok(CloudCompletionEvent::Status(
1002            CompletionRequestStatus::ToolUseLimitReached,
1003        ))
1004    }))
1005}
1006
1007fn response_lines<T: DeserializeOwned>(
1008    response: Response<AsyncBody>,
1009    includes_status_messages: bool,
1010) -> impl Stream<Item = Result<CloudCompletionEvent<T>>> {
1011    futures::stream::try_unfold(
1012        (String::new(), BufReader::new(response.into_body())),
1013        move |(mut line, mut body)| async move {
1014            match body.read_line(&mut line).await {
1015                Ok(0) => Ok(None),
1016                Ok(_) => {
1017                    let event = if includes_status_messages {
1018                        serde_json::from_str::<CloudCompletionEvent<T>>(&line)?
1019                    } else {
1020                        CloudCompletionEvent::Event(serde_json::from_str::<T>(&line)?)
1021                    };
1022
1023                    line.clear();
1024                    Ok(Some((event, (line, body))))
1025                }
1026                Err(e) => Err(e.into()),
1027            }
1028        },
1029    )
1030}
1031
1032struct ConfigurationView {
1033    state: gpui::Entity<State>,
1034}
1035
1036impl ConfigurationView {
1037    fn authenticate(&mut self, cx: &mut Context<Self>) {
1038        self.state.update(cx, |state, cx| {
1039            state.authenticate(cx).detach_and_log_err(cx);
1040        });
1041        cx.notify();
1042    }
1043}
1044
1045impl Render for ConfigurationView {
1046    fn render(&mut self, _: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
1047        const ZED_PRICING_URL: &str = "https://zed.dev/pricing";
1048
1049        let is_connected = !self.state.read(cx).is_signed_out();
1050        let user_store = self.state.read(cx).user_store.read(cx);
1051        let plan = user_store.current_plan();
1052        let subscription_period = user_store.subscription_period();
1053        let eligible_for_trial = user_store.trial_started_at().is_none();
1054        let has_accepted_terms = self.state.read(cx).has_accepted_terms_of_service(cx);
1055
1056        let is_pro = plan == Some(proto::Plan::ZedPro);
1057        let subscription_text = match (plan, subscription_period) {
1058            (Some(proto::Plan::ZedPro), Some(_)) => {
1059                "You have access to Zed's hosted LLMs through your Zed Pro subscription."
1060            }
1061            (Some(proto::Plan::ZedProTrial), Some(_)) => {
1062                "You have access to Zed's hosted LLMs through your Zed Pro trial."
1063            }
1064            (Some(proto::Plan::Free), Some(_)) => {
1065                "You have basic access to Zed's hosted LLMs through your Zed Free subscription."
1066            }
1067            _ => {
1068                if eligible_for_trial {
1069                    "Subscribe for access to Zed's hosted LLMs. Start with a 14 day free trial."
1070                } else {
1071                    "Subscribe for access to Zed's hosted LLMs."
1072                }
1073            }
1074        };
1075        let manage_subscription_buttons = if is_pro {
1076            h_flex().child(
1077                Button::new("manage_settings", "Manage Subscription")
1078                    .style(ButtonStyle::Tinted(TintColor::Accent))
1079                    .on_click(cx.listener(|_, _, _, cx| cx.open_url(&zed_urls::account_url(cx)))),
1080            )
1081        } else {
1082            h_flex()
1083                .gap_2()
1084                .child(
1085                    Button::new("learn_more", "Learn more")
1086                        .style(ButtonStyle::Subtle)
1087                        .on_click(cx.listener(|_, _, _, cx| cx.open_url(ZED_PRICING_URL))),
1088                )
1089                .child(
1090                    Button::new("upgrade", "Upgrade")
1091                        .style(ButtonStyle::Subtle)
1092                        .color(Color::Accent)
1093                        .on_click(
1094                            cx.listener(|_, _, _, cx| cx.open_url(&zed_urls::account_url(cx))),
1095                        ),
1096                )
1097        };
1098
1099        if is_connected {
1100            v_flex()
1101                .gap_3()
1102                .w_full()
1103                .children(render_accept_terms(
1104                    self.state.clone(),
1105                    LanguageModelProviderTosView::Configuration,
1106                    cx,
1107                ))
1108                .when(has_accepted_terms, |this| {
1109                    this.child(subscription_text)
1110                        .child(manage_subscription_buttons)
1111                })
1112        } else {
1113            v_flex()
1114                .gap_2()
1115                .child(Label::new("Use Zed AI to access hosted language models."))
1116                .child(
1117                    Button::new("sign_in", "Sign In")
1118                        .icon_color(Color::Muted)
1119                        .icon(IconName::Github)
1120                        .icon_position(IconPosition::Start)
1121                        .on_click(cx.listener(move |this, _, _, cx| this.authenticate(cx))),
1122                )
1123        }
1124    }
1125}