open_ai.rs

  1use anyhow::{Result, anyhow};
  2use collections::{BTreeMap, HashMap};
  3use futures::Stream;
  4use futures::{FutureExt, StreamExt, future, future::BoxFuture};
  5use gpui::{AnyView, App, AsyncApp, Context, Entity, SharedString, Task, Window};
  6use http_client::HttpClient;
  7use language_model::{
  8    AuthenticateError, LanguageModel, LanguageModelCompletionError, LanguageModelCompletionEvent,
  9    LanguageModelId, LanguageModelName, LanguageModelProvider, LanguageModelProviderId,
 10    LanguageModelProviderName, LanguageModelProviderState, LanguageModelRequest,
 11    LanguageModelToolChoice, LanguageModelToolResultContent, LanguageModelToolUse, MessageContent,
 12    RateLimiter, Role, StopReason, TokenUsage,
 13};
 14use menu;
 15use open_ai::{
 16    ImageUrl, Model, OPEN_AI_API_URL, ReasoningEffort, ResponseStreamEvent, stream_completion,
 17};
 18use settings::{OpenAiAvailableModel as AvailableModel, Settings, SettingsStore};
 19use std::pin::Pin;
 20use std::str::FromStr as _;
 21use std::sync::{Arc, LazyLock};
 22use strum::IntoEnumIterator;
 23use ui::{ElevationIndex, List, Tooltip, prelude::*};
 24use ui_input::InputField;
 25use util::{ResultExt, truncate_and_trailoff};
 26use zed_env_vars::{EnvVar, env_var};
 27
 28use crate::{api_key::ApiKeyState, ui::InstructionListItem};
 29
 30const PROVIDER_ID: LanguageModelProviderId = language_model::OPEN_AI_PROVIDER_ID;
 31const PROVIDER_NAME: LanguageModelProviderName = language_model::OPEN_AI_PROVIDER_NAME;
 32
 33const API_KEY_ENV_VAR_NAME: &str = "OPENAI_API_KEY";
 34static API_KEY_ENV_VAR: LazyLock<EnvVar> = env_var!(API_KEY_ENV_VAR_NAME);
 35
 36#[derive(Default, Clone, Debug, PartialEq)]
 37pub struct OpenAiSettings {
 38    pub api_url: String,
 39    pub available_models: Vec<AvailableModel>,
 40}
 41
 42pub struct OpenAiLanguageModelProvider {
 43    http_client: Arc<dyn HttpClient>,
 44    state: Entity<State>,
 45}
 46
 47pub struct State {
 48    api_key_state: ApiKeyState,
 49}
 50
 51impl State {
 52    fn is_authenticated(&self) -> bool {
 53        self.api_key_state.has_key()
 54    }
 55
 56    fn set_api_key(&mut self, api_key: Option<String>, cx: &mut Context<Self>) -> Task<Result<()>> {
 57        let api_url = OpenAiLanguageModelProvider::api_url(cx);
 58        self.api_key_state
 59            .store(api_url, api_key, |this| &mut this.api_key_state, cx)
 60    }
 61
 62    fn authenticate(&mut self, cx: &mut Context<Self>) -> Task<Result<(), AuthenticateError>> {
 63        let api_url = OpenAiLanguageModelProvider::api_url(cx);
 64        self.api_key_state.load_if_needed(
 65            api_url,
 66            &API_KEY_ENV_VAR,
 67            |this| &mut this.api_key_state,
 68            cx,
 69        )
 70    }
 71}
 72
 73impl OpenAiLanguageModelProvider {
 74    pub fn new(http_client: Arc<dyn HttpClient>, cx: &mut App) -> Self {
 75        let state = cx.new(|cx| {
 76            cx.observe_global::<SettingsStore>(|this: &mut State, cx| {
 77                let api_url = Self::api_url(cx);
 78                this.api_key_state.handle_url_change(
 79                    api_url,
 80                    &API_KEY_ENV_VAR,
 81                    |this| &mut this.api_key_state,
 82                    cx,
 83                );
 84                cx.notify();
 85            })
 86            .detach();
 87            State {
 88                api_key_state: ApiKeyState::new(Self::api_url(cx)),
 89            }
 90        });
 91
 92        Self { http_client, state }
 93    }
 94
 95    fn create_language_model(&self, model: open_ai::Model) -> Arc<dyn LanguageModel> {
 96        Arc::new(OpenAiLanguageModel {
 97            id: LanguageModelId::from(model.id().to_string()),
 98            model,
 99            state: self.state.clone(),
100            http_client: self.http_client.clone(),
101            request_limiter: RateLimiter::new(4),
102        })
103    }
104
105    fn settings(cx: &App) -> &OpenAiSettings {
106        &crate::AllLanguageModelSettings::get_global(cx).openai
107    }
108
109    fn api_url(cx: &App) -> SharedString {
110        let api_url = &Self::settings(cx).api_url;
111        if api_url.is_empty() {
112            open_ai::OPEN_AI_API_URL.into()
113        } else {
114            SharedString::new(api_url.as_str())
115        }
116    }
117}
118
119impl LanguageModelProviderState for OpenAiLanguageModelProvider {
120    type ObservableEntity = State;
121
122    fn observable_entity(&self) -> Option<Entity<Self::ObservableEntity>> {
123        Some(self.state.clone())
124    }
125}
126
127impl LanguageModelProvider for OpenAiLanguageModelProvider {
128    fn id(&self) -> LanguageModelProviderId {
129        PROVIDER_ID
130    }
131
132    fn name(&self) -> LanguageModelProviderName {
133        PROVIDER_NAME
134    }
135
136    fn icon(&self) -> IconName {
137        IconName::AiOpenAi
138    }
139
140    fn default_model(&self, _cx: &App) -> Option<Arc<dyn LanguageModel>> {
141        Some(self.create_language_model(open_ai::Model::default()))
142    }
143
144    fn default_fast_model(&self, _cx: &App) -> Option<Arc<dyn LanguageModel>> {
145        Some(self.create_language_model(open_ai::Model::default_fast()))
146    }
147
148    fn provided_models(&self, cx: &App) -> Vec<Arc<dyn LanguageModel>> {
149        let mut models = BTreeMap::default();
150
151        // Add base models from open_ai::Model::iter()
152        for model in open_ai::Model::iter() {
153            if !matches!(model, open_ai::Model::Custom { .. }) {
154                models.insert(model.id().to_string(), model);
155            }
156        }
157
158        // Override with available models from settings
159        for model in &OpenAiLanguageModelProvider::settings(cx).available_models {
160            models.insert(
161                model.name.clone(),
162                open_ai::Model::Custom {
163                    name: model.name.clone(),
164                    display_name: model.display_name.clone(),
165                    max_tokens: model.max_tokens,
166                    max_output_tokens: model.max_output_tokens,
167                    max_completion_tokens: model.max_completion_tokens,
168                    reasoning_effort: model.reasoning_effort.clone(),
169                },
170            );
171        }
172
173        models
174            .into_values()
175            .map(|model| self.create_language_model(model))
176            .collect()
177    }
178
179    fn is_authenticated(&self, cx: &App) -> bool {
180        self.state.read(cx).is_authenticated()
181    }
182
183    fn authenticate(&self, cx: &mut App) -> Task<Result<(), AuthenticateError>> {
184        self.state.update(cx, |state, cx| state.authenticate(cx))
185    }
186
187    fn configuration_view(
188        &self,
189        _target_agent: language_model::ConfigurationViewTargetAgent,
190        window: &mut Window,
191        cx: &mut App,
192    ) -> AnyView {
193        cx.new(|cx| ConfigurationView::new(self.state.clone(), window, cx))
194            .into()
195    }
196
197    fn reset_credentials(&self, cx: &mut App) -> Task<Result<()>> {
198        self.state
199            .update(cx, |state, cx| state.set_api_key(None, cx))
200    }
201}
202
203pub struct OpenAiLanguageModel {
204    id: LanguageModelId,
205    model: open_ai::Model,
206    state: Entity<State>,
207    http_client: Arc<dyn HttpClient>,
208    request_limiter: RateLimiter,
209}
210
211impl OpenAiLanguageModel {
212    fn stream_completion(
213        &self,
214        request: open_ai::Request,
215        cx: &AsyncApp,
216    ) -> BoxFuture<'static, Result<futures::stream::BoxStream<'static, Result<ResponseStreamEvent>>>>
217    {
218        let http_client = self.http_client.clone();
219
220        let Ok((api_key, api_url)) = self.state.read_with(cx, |state, cx| {
221            let api_url = OpenAiLanguageModelProvider::api_url(cx);
222            (state.api_key_state.key(&api_url), api_url)
223        }) else {
224            return future::ready(Err(anyhow!("App state dropped"))).boxed();
225        };
226
227        let future = self.request_limiter.stream(async move {
228            let Some(api_key) = api_key else {
229                return Err(LanguageModelCompletionError::NoApiKey {
230                    provider: PROVIDER_NAME,
231                });
232            };
233            let request = stream_completion(http_client.as_ref(), &api_url, &api_key, request);
234            let response = request.await?;
235            Ok(response)
236        });
237
238        async move { Ok(future.await?.boxed()) }.boxed()
239    }
240}
241
242impl LanguageModel for OpenAiLanguageModel {
243    fn id(&self) -> LanguageModelId {
244        self.id.clone()
245    }
246
247    fn name(&self) -> LanguageModelName {
248        LanguageModelName::from(self.model.display_name().to_string())
249    }
250
251    fn provider_id(&self) -> LanguageModelProviderId {
252        PROVIDER_ID
253    }
254
255    fn provider_name(&self) -> LanguageModelProviderName {
256        PROVIDER_NAME
257    }
258
259    fn supports_tools(&self) -> bool {
260        true
261    }
262
263    fn supports_images(&self) -> bool {
264        use open_ai::Model;
265        match &self.model {
266            Model::FourOmni
267            | Model::FourOmniMini
268            | Model::FourPointOne
269            | Model::FourPointOneMini
270            | Model::FourPointOneNano
271            | Model::Five
272            | Model::FiveMini
273            | Model::FiveNano
274            | Model::O1
275            | Model::O3
276            | Model::O4Mini => true,
277            Model::ThreePointFiveTurbo
278            | Model::Four
279            | Model::FourTurbo
280            | Model::O3Mini
281            | Model::Custom { .. } => false,
282        }
283    }
284
285    fn supports_tool_choice(&self, choice: LanguageModelToolChoice) -> bool {
286        match choice {
287            LanguageModelToolChoice::Auto => true,
288            LanguageModelToolChoice::Any => true,
289            LanguageModelToolChoice::None => true,
290        }
291    }
292
293    fn telemetry_id(&self) -> String {
294        format!("openai/{}", self.model.id())
295    }
296
297    fn max_token_count(&self) -> u64 {
298        self.model.max_token_count()
299    }
300
301    fn max_output_tokens(&self) -> Option<u64> {
302        self.model.max_output_tokens()
303    }
304
305    fn count_tokens(
306        &self,
307        request: LanguageModelRequest,
308        cx: &App,
309    ) -> BoxFuture<'static, Result<u64>> {
310        count_open_ai_tokens(request, self.model.clone(), cx)
311    }
312
313    fn stream_completion(
314        &self,
315        request: LanguageModelRequest,
316        cx: &AsyncApp,
317    ) -> BoxFuture<
318        'static,
319        Result<
320            futures::stream::BoxStream<
321                'static,
322                Result<LanguageModelCompletionEvent, LanguageModelCompletionError>,
323            >,
324            LanguageModelCompletionError,
325        >,
326    > {
327        let request = into_open_ai(
328            request,
329            self.model.id(),
330            self.model.supports_parallel_tool_calls(),
331            self.model.supports_prompt_cache_key(),
332            self.max_output_tokens(),
333            self.model.reasoning_effort(),
334        );
335        let completions = self.stream_completion(request, cx);
336        async move {
337            let mapper = OpenAiEventMapper::new();
338            Ok(mapper.map_stream(completions.await?).boxed())
339        }
340        .boxed()
341    }
342}
343
344pub fn into_open_ai(
345    request: LanguageModelRequest,
346    model_id: &str,
347    supports_parallel_tool_calls: bool,
348    supports_prompt_cache_key: bool,
349    max_output_tokens: Option<u64>,
350    reasoning_effort: Option<ReasoningEffort>,
351) -> open_ai::Request {
352    let stream = !model_id.starts_with("o1-");
353
354    let mut messages = Vec::new();
355    for message in request.messages {
356        for content in message.content {
357            match content {
358                MessageContent::Text(text) | MessageContent::Thinking { text, .. } => {
359                    if !text.trim().is_empty() {
360                        add_message_content_part(
361                            open_ai::MessagePart::Text { text },
362                            message.role,
363                            &mut messages,
364                        );
365                    }
366                }
367                MessageContent::RedactedThinking(_) => {}
368                MessageContent::Image(image) => {
369                    add_message_content_part(
370                        open_ai::MessagePart::Image {
371                            image_url: ImageUrl {
372                                url: image.to_base64_url(),
373                                detail: None,
374                            },
375                        },
376                        message.role,
377                        &mut messages,
378                    );
379                }
380                MessageContent::ToolUse(tool_use) => {
381                    let tool_call = open_ai::ToolCall {
382                        id: tool_use.id.to_string(),
383                        content: open_ai::ToolCallContent::Function {
384                            function: open_ai::FunctionContent {
385                                name: tool_use.name.to_string(),
386                                arguments: serde_json::to_string(&tool_use.input)
387                                    .unwrap_or_default(),
388                            },
389                        },
390                    };
391
392                    if let Some(open_ai::RequestMessage::Assistant { tool_calls, .. }) =
393                        messages.last_mut()
394                    {
395                        tool_calls.push(tool_call);
396                    } else {
397                        messages.push(open_ai::RequestMessage::Assistant {
398                            content: None,
399                            tool_calls: vec![tool_call],
400                        });
401                    }
402                }
403                MessageContent::ToolResult(tool_result) => {
404                    let content = match &tool_result.content {
405                        LanguageModelToolResultContent::Text(text) => {
406                            vec![open_ai::MessagePart::Text {
407                                text: text.to_string(),
408                            }]
409                        }
410                        LanguageModelToolResultContent::Image(image) => {
411                            vec![open_ai::MessagePart::Image {
412                                image_url: ImageUrl {
413                                    url: image.to_base64_url(),
414                                    detail: None,
415                                },
416                            }]
417                        }
418                    };
419
420                    messages.push(open_ai::RequestMessage::Tool {
421                        content: content.into(),
422                        tool_call_id: tool_result.tool_use_id.to_string(),
423                    });
424                }
425            }
426        }
427    }
428
429    open_ai::Request {
430        model: model_id.into(),
431        messages,
432        stream,
433        stop: request.stop,
434        temperature: request.temperature.unwrap_or(1.0),
435        max_completion_tokens: max_output_tokens,
436        parallel_tool_calls: if supports_parallel_tool_calls && !request.tools.is_empty() {
437            // Disable parallel tool calls, as the Agent currently expects a maximum of one per turn.
438            Some(false)
439        } else {
440            None
441        },
442        prompt_cache_key: if supports_prompt_cache_key {
443            request.thread_id
444        } else {
445            None
446        },
447        tools: request
448            .tools
449            .into_iter()
450            .map(|tool| open_ai::ToolDefinition::Function {
451                function: open_ai::FunctionDefinition {
452                    name: tool.name,
453                    description: Some(tool.description),
454                    parameters: Some(tool.input_schema),
455                },
456            })
457            .collect(),
458        tool_choice: request.tool_choice.map(|choice| match choice {
459            LanguageModelToolChoice::Auto => open_ai::ToolChoice::Auto,
460            LanguageModelToolChoice::Any => open_ai::ToolChoice::Required,
461            LanguageModelToolChoice::None => open_ai::ToolChoice::None,
462        }),
463        reasoning_effort,
464    }
465}
466
467fn add_message_content_part(
468    new_part: open_ai::MessagePart,
469    role: Role,
470    messages: &mut Vec<open_ai::RequestMessage>,
471) {
472    match (role, messages.last_mut()) {
473        (Role::User, Some(open_ai::RequestMessage::User { content }))
474        | (
475            Role::Assistant,
476            Some(open_ai::RequestMessage::Assistant {
477                content: Some(content),
478                ..
479            }),
480        )
481        | (Role::System, Some(open_ai::RequestMessage::System { content, .. })) => {
482            content.push_part(new_part);
483        }
484        _ => {
485            messages.push(match role {
486                Role::User => open_ai::RequestMessage::User {
487                    content: open_ai::MessageContent::from(vec![new_part]),
488                },
489                Role::Assistant => open_ai::RequestMessage::Assistant {
490                    content: Some(open_ai::MessageContent::from(vec![new_part])),
491                    tool_calls: Vec::new(),
492                },
493                Role::System => open_ai::RequestMessage::System {
494                    content: open_ai::MessageContent::from(vec![new_part]),
495                },
496            });
497        }
498    }
499}
500
501pub struct OpenAiEventMapper {
502    tool_calls_by_index: HashMap<usize, RawToolCall>,
503}
504
505impl OpenAiEventMapper {
506    pub fn new() -> Self {
507        Self {
508            tool_calls_by_index: HashMap::default(),
509        }
510    }
511
512    pub fn map_stream(
513        mut self,
514        events: Pin<Box<dyn Send + Stream<Item = Result<ResponseStreamEvent>>>>,
515    ) -> impl Stream<Item = Result<LanguageModelCompletionEvent, LanguageModelCompletionError>>
516    {
517        events.flat_map(move |event| {
518            futures::stream::iter(match event {
519                Ok(event) => self.map_event(event),
520                Err(error) => vec![Err(LanguageModelCompletionError::from(anyhow!(error)))],
521            })
522        })
523    }
524
525    pub fn map_event(
526        &mut self,
527        event: ResponseStreamEvent,
528    ) -> Vec<Result<LanguageModelCompletionEvent, LanguageModelCompletionError>> {
529        let mut events = Vec::new();
530        if let Some(usage) = event.usage {
531            events.push(Ok(LanguageModelCompletionEvent::UsageUpdate(TokenUsage {
532                input_tokens: usage.prompt_tokens,
533                output_tokens: usage.completion_tokens,
534                cache_creation_input_tokens: 0,
535                cache_read_input_tokens: 0,
536            })));
537        }
538
539        let Some(choice) = event.choices.first() else {
540            return events;
541        };
542
543        if let Some(delta) = choice.delta.as_ref() {
544            if let Some(content) = delta.content.clone() {
545                events.push(Ok(LanguageModelCompletionEvent::Text(content)));
546            }
547
548            if let Some(tool_calls) = delta.tool_calls.as_ref() {
549                for tool_call in tool_calls {
550                    let entry = self.tool_calls_by_index.entry(tool_call.index).or_default();
551
552                    if let Some(tool_id) = tool_call.id.clone() {
553                        entry.id = tool_id;
554                    }
555
556                    if let Some(function) = tool_call.function.as_ref() {
557                        if let Some(name) = function.name.clone() {
558                            entry.name = name;
559                        }
560
561                        if let Some(arguments) = function.arguments.clone() {
562                            entry.arguments.push_str(&arguments);
563                        }
564                    }
565                }
566            }
567        }
568
569        match choice.finish_reason.as_deref() {
570            Some("stop") => {
571                events.push(Ok(LanguageModelCompletionEvent::Stop(StopReason::EndTurn)));
572            }
573            Some("tool_calls") => {
574                events.extend(self.tool_calls_by_index.drain().map(|(_, tool_call)| {
575                    match serde_json::Value::from_str(&tool_call.arguments) {
576                        Ok(input) => Ok(LanguageModelCompletionEvent::ToolUse(
577                            LanguageModelToolUse {
578                                id: tool_call.id.clone().into(),
579                                name: tool_call.name.as_str().into(),
580                                is_input_complete: true,
581                                input,
582                                raw_input: tool_call.arguments.clone(),
583                            },
584                        )),
585                        Err(error) => Ok(LanguageModelCompletionEvent::ToolUseJsonParseError {
586                            id: tool_call.id.into(),
587                            tool_name: tool_call.name.into(),
588                            raw_input: tool_call.arguments.clone().into(),
589                            json_parse_error: error.to_string(),
590                        }),
591                    }
592                }));
593
594                events.push(Ok(LanguageModelCompletionEvent::Stop(StopReason::ToolUse)));
595            }
596            Some(stop_reason) => {
597                log::error!("Unexpected OpenAI stop_reason: {stop_reason:?}",);
598                events.push(Ok(LanguageModelCompletionEvent::Stop(StopReason::EndTurn)));
599            }
600            None => {}
601        }
602
603        events
604    }
605}
606
607#[derive(Default)]
608struct RawToolCall {
609    id: String,
610    name: String,
611    arguments: String,
612}
613
614pub(crate) fn collect_tiktoken_messages(
615    request: LanguageModelRequest,
616) -> Vec<tiktoken_rs::ChatCompletionRequestMessage> {
617    request
618        .messages
619        .into_iter()
620        .map(|message| tiktoken_rs::ChatCompletionRequestMessage {
621            role: match message.role {
622                Role::User => "user".into(),
623                Role::Assistant => "assistant".into(),
624                Role::System => "system".into(),
625            },
626            content: Some(message.string_contents()),
627            name: None,
628            function_call: None,
629        })
630        .collect::<Vec<_>>()
631}
632
633pub fn count_open_ai_tokens(
634    request: LanguageModelRequest,
635    model: Model,
636    cx: &App,
637) -> BoxFuture<'static, Result<u64>> {
638    cx.background_spawn(async move {
639        let messages = collect_tiktoken_messages(request);
640
641        match model {
642            Model::Custom { max_tokens, .. } => {
643                let model = if max_tokens >= 100_000 {
644                    // If the max tokens is 100k or more, it is likely the o200k_base tokenizer from gpt4o
645                    "gpt-4o"
646                } else {
647                    // Otherwise fallback to gpt-4, since only cl100k_base and o200k_base are
648                    // supported with this tiktoken method
649                    "gpt-4"
650                };
651                tiktoken_rs::num_tokens_from_messages(model, &messages)
652            }
653            // Currently supported by tiktoken_rs
654            // Sometimes tiktoken-rs is behind on model support. If that is the case, make a new branch
655            // arm with an override. We enumerate all supported models here so that we can check if new
656            // models are supported yet or not.
657            Model::ThreePointFiveTurbo
658            | Model::Four
659            | Model::FourTurbo
660            | Model::FourOmni
661            | Model::FourOmniMini
662            | Model::FourPointOne
663            | Model::FourPointOneMini
664            | Model::FourPointOneNano
665            | Model::O1
666            | Model::O3
667            | Model::O3Mini
668            | Model::O4Mini => tiktoken_rs::num_tokens_from_messages(model.id(), &messages),
669            // GPT-5 models don't have tiktoken support yet; fall back on gpt-4o tokenizer
670            Model::Five | Model::FiveMini | Model::FiveNano => {
671                tiktoken_rs::num_tokens_from_messages("gpt-4o", &messages)
672            }
673        }
674        .map(|tokens| tokens as u64)
675    })
676    .boxed()
677}
678
679struct ConfigurationView {
680    api_key_editor: Entity<InputField>,
681    state: Entity<State>,
682    load_credentials_task: Option<Task<()>>,
683}
684
685impl ConfigurationView {
686    fn new(state: Entity<State>, window: &mut Window, cx: &mut Context<Self>) -> Self {
687        let api_key_editor = cx.new(|cx| {
688            InputField::new(
689                window,
690                cx,
691                "sk-000000000000000000000000000000000000000000000000",
692            )
693        });
694
695        cx.observe(&state, |_, _, cx| {
696            cx.notify();
697        })
698        .detach();
699
700        let load_credentials_task = Some(cx.spawn_in(window, {
701            let state = state.clone();
702            async move |this, cx| {
703                if let Some(task) = state
704                    .update(cx, |state, cx| state.authenticate(cx))
705                    .log_err()
706                {
707                    // We don't log an error, because "not signed in" is also an error.
708                    let _ = task.await;
709                }
710                this.update(cx, |this, cx| {
711                    this.load_credentials_task = None;
712                    cx.notify();
713                })
714                .log_err();
715            }
716        }));
717
718        Self {
719            api_key_editor,
720            state,
721            load_credentials_task,
722        }
723    }
724
725    fn save_api_key(&mut self, _: &menu::Confirm, window: &mut Window, cx: &mut Context<Self>) {
726        let api_key = self.api_key_editor.read(cx).text(cx).trim().to_string();
727        if api_key.is_empty() {
728            return;
729        }
730
731        // url changes can cause the editor to be displayed again
732        self.api_key_editor
733            .update(cx, |editor, cx| editor.set_text("", window, cx));
734
735        let state = self.state.clone();
736        cx.spawn_in(window, async move |_, cx| {
737            state
738                .update(cx, |state, cx| state.set_api_key(Some(api_key), cx))?
739                .await
740        })
741        .detach_and_log_err(cx);
742    }
743
744    fn reset_api_key(&mut self, window: &mut Window, cx: &mut Context<Self>) {
745        self.api_key_editor
746            .update(cx, |input, cx| input.set_text("", window, cx));
747
748        let state = self.state.clone();
749        cx.spawn_in(window, async move |_, cx| {
750            state
751                .update(cx, |state, cx| state.set_api_key(None, cx))?
752                .await
753        })
754        .detach_and_log_err(cx);
755    }
756
757    fn should_render_editor(&self, cx: &mut Context<Self>) -> bool {
758        !self.state.read(cx).is_authenticated()
759    }
760}
761
762impl Render for ConfigurationView {
763    fn render(&mut self, _: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
764        let env_var_set = self.state.read(cx).api_key_state.is_from_env_var();
765
766        let api_key_section = if self.should_render_editor(cx) {
767            v_flex()
768                .on_action(cx.listener(Self::save_api_key))
769                .child(Label::new("To use Zed's agent with OpenAI, you need to add an API key. Follow these steps:"))
770                .child(
771                    List::new()
772                        .child(InstructionListItem::new(
773                            "Create one by visiting",
774                            Some("OpenAI's console"),
775                            Some("https://platform.openai.com/api-keys"),
776                        ))
777                        .child(InstructionListItem::text_only(
778                            "Ensure your OpenAI account has credits",
779                        ))
780                        .child(InstructionListItem::text_only(
781                            "Paste your API key below and hit enter to start using the assistant",
782                        )),
783                )
784                .child(self.api_key_editor.clone())
785                .child(
786                    Label::new(format!(
787                        "You can also assign the {API_KEY_ENV_VAR_NAME} environment variable and restart Zed."
788                    ))
789                    .size(LabelSize::Small)
790                    .color(Color::Muted),
791                )
792                .child(
793                    Label::new(
794                        "Note that having a subscription for another service like GitHub Copilot won't work.",
795                    )
796                    .size(LabelSize::Small).color(Color::Muted),
797                )
798                .into_any()
799        } else {
800            h_flex()
801                .mt_1()
802                .p_1()
803                .justify_between()
804                .rounded_md()
805                .border_1()
806                .border_color(cx.theme().colors().border)
807                .bg(cx.theme().colors().background)
808                .child(
809                    h_flex()
810                        .gap_1()
811                        .child(Icon::new(IconName::Check).color(Color::Success))
812                        .child(Label::new(if env_var_set {
813                            format!("API key set in {API_KEY_ENV_VAR_NAME} environment variable")
814                        } else {
815                            let api_url = OpenAiLanguageModelProvider::api_url(cx);
816                            if api_url == OPEN_AI_API_URL {
817                                "API key configured".to_string()
818                            } else {
819                                format!("API key configured for {}", truncate_and_trailoff(&api_url, 32))
820                            }
821                        })),
822                )
823                .child(
824                    Button::new("reset-api-key", "Reset API Key")
825                        .label_size(LabelSize::Small)
826                        .icon(IconName::Undo)
827                        .icon_size(IconSize::Small)
828                        .icon_position(IconPosition::Start)
829                        .layer(ElevationIndex::ModalSurface)
830                        .when(env_var_set, |this| {
831                            this.tooltip(Tooltip::text(format!("To reset your API key, unset the {API_KEY_ENV_VAR_NAME} environment variable.")))
832                        })
833                        .on_click(cx.listener(|this, _, window, cx| this.reset_api_key(window, cx))),
834                )
835                .into_any()
836        };
837
838        let compatible_api_section = h_flex()
839            .mt_1p5()
840            .gap_0p5()
841            .flex_wrap()
842            .when(self.should_render_editor(cx), |this| {
843                this.pt_1p5()
844                    .border_t_1()
845                    .border_color(cx.theme().colors().border_variant)
846            })
847            .child(
848                h_flex()
849                    .gap_2()
850                    .child(
851                        Icon::new(IconName::Info)
852                            .size(IconSize::XSmall)
853                            .color(Color::Muted),
854                    )
855                    .child(Label::new("Zed also supports OpenAI-compatible models.")),
856            )
857            .child(
858                Button::new("docs", "Learn More")
859                    .icon(IconName::ArrowUpRight)
860                    .icon_size(IconSize::Small)
861                    .icon_color(Color::Muted)
862                    .on_click(move |_, _window, cx| {
863                        cx.open_url("https://zed.dev/docs/ai/llm-providers#openai-api-compatible")
864                    }),
865            );
866
867        if self.load_credentials_task.is_some() {
868            div().child(Label::new("Loading credentials…")).into_any()
869        } else {
870            v_flex()
871                .size_full()
872                .child(api_key_section)
873                .child(compatible_api_section)
874                .into_any()
875        }
876    }
877}
878
879#[cfg(test)]
880mod tests {
881    use gpui::TestAppContext;
882    use language_model::LanguageModelRequestMessage;
883
884    use super::*;
885
886    #[gpui::test]
887    fn tiktoken_rs_support(cx: &TestAppContext) {
888        let request = LanguageModelRequest {
889            thread_id: None,
890            prompt_id: None,
891            intent: None,
892            mode: None,
893            messages: vec![LanguageModelRequestMessage {
894                role: Role::User,
895                content: vec![MessageContent::Text("message".into())],
896                cache: false,
897            }],
898            tools: vec![],
899            tool_choice: None,
900            stop: vec![],
901            temperature: None,
902            thinking_allowed: true,
903        };
904
905        // Validate that all models are supported by tiktoken-rs
906        for model in Model::iter() {
907            let count = cx
908                .executor()
909                .block(count_open_ai_tokens(
910                    request.clone(),
911                    model,
912                    &cx.app.borrow(),
913                ))
914                .unwrap();
915            assert!(count > 0);
916        }
917    }
918}