@@ -56,6 +56,13 @@ pub enum Model {
alias = "claude-sonnet-4-thinking-latest"
)]
ClaudeSonnet4Thinking,
+ #[serde(rename = "claude-sonnet-4-5", alias = "claude-sonnet-4-5-latest")]
+ ClaudeSonnet4_5,
+ #[serde(
+ rename = "claude-sonnet-4-5-thinking",
+ alias = "claude-sonnet-4-5-thinking-latest"
+ )]
+ ClaudeSonnet4_5Thinking,
#[serde(rename = "claude-3-7-sonnet", alias = "claude-3-7-sonnet-latest")]
Claude3_7Sonnet,
#[serde(
@@ -114,6 +121,14 @@ impl Model {
return Ok(Self::ClaudeOpus4);
}
+ if id.starts_with("claude-sonnet-4-5-thinking") {
+ return Ok(Self::ClaudeSonnet4_5Thinking);
+ }
+
+ if id.starts_with("claude-sonnet-4-5") {
+ return Ok(Self::ClaudeSonnet4_5);
+ }
+
if id.starts_with("claude-sonnet-4-thinking") {
return Ok(Self::ClaudeSonnet4Thinking);
}
@@ -161,6 +176,8 @@ impl Model {
Self::ClaudeOpus4_1Thinking => "claude-opus-4-1-thinking-latest",
Self::ClaudeSonnet4 => "claude-sonnet-4-latest",
Self::ClaudeSonnet4Thinking => "claude-sonnet-4-thinking-latest",
+ Self::ClaudeSonnet4_5 => "claude-sonnet-4-5-latest",
+ Self::ClaudeSonnet4_5Thinking => "claude-sonnet-4-5-thinking-latest",
Self::Claude3_5Sonnet => "claude-3-5-sonnet-latest",
Self::Claude3_7Sonnet => "claude-3-7-sonnet-latest",
Self::Claude3_7SonnetThinking => "claude-3-7-sonnet-thinking-latest",
@@ -178,6 +195,7 @@ impl Model {
Self::ClaudeOpus4 | Self::ClaudeOpus4Thinking => "claude-opus-4-20250514",
Self::ClaudeOpus4_1 | Self::ClaudeOpus4_1Thinking => "claude-opus-4-1-20250805",
Self::ClaudeSonnet4 | Self::ClaudeSonnet4Thinking => "claude-sonnet-4-20250514",
+ Self::ClaudeSonnet4_5 | Self::ClaudeSonnet4_5Thinking => "claude-sonnet-4-5-20250929",
Self::Claude3_5Sonnet => "claude-3-5-sonnet-latest",
Self::Claude3_7Sonnet | Self::Claude3_7SonnetThinking => "claude-3-7-sonnet-latest",
Self::Claude3_5Haiku => "claude-3-5-haiku-latest",
@@ -196,6 +214,8 @@ impl Model {
Self::ClaudeOpus4_1Thinking => "Claude Opus 4.1 Thinking",
Self::ClaudeSonnet4 => "Claude Sonnet 4",
Self::ClaudeSonnet4Thinking => "Claude Sonnet 4 Thinking",
+ Self::ClaudeSonnet4_5 => "Claude Sonnet 4.5",
+ Self::ClaudeSonnet4_5Thinking => "Claude Sonnet 4.5 Thinking",
Self::Claude3_7Sonnet => "Claude 3.7 Sonnet",
Self::Claude3_5Sonnet => "Claude 3.5 Sonnet",
Self::Claude3_7SonnetThinking => "Claude 3.7 Sonnet Thinking",
@@ -217,6 +237,8 @@ impl Model {
| Self::ClaudeOpus4_1Thinking
| Self::ClaudeSonnet4
| Self::ClaudeSonnet4Thinking
+ | Self::ClaudeSonnet4_5
+ | Self::ClaudeSonnet4_5Thinking
| Self::Claude3_5Sonnet
| Self::Claude3_5Haiku
| Self::Claude3_7Sonnet
@@ -242,6 +264,8 @@ impl Model {
| Self::ClaudeOpus4_1Thinking
| Self::ClaudeSonnet4
| Self::ClaudeSonnet4Thinking
+ | Self::ClaudeSonnet4_5
+ | Self::ClaudeSonnet4_5Thinking
| Self::Claude3_5Sonnet
| Self::Claude3_5Haiku
| Self::Claude3_7Sonnet
@@ -261,6 +285,8 @@ impl Model {
| Self::ClaudeOpus4_1Thinking
| Self::ClaudeSonnet4
| Self::ClaudeSonnet4Thinking
+ | Self::ClaudeSonnet4_5
+ | Self::ClaudeSonnet4_5Thinking
| Self::Claude3_5Sonnet
| Self::Claude3_7Sonnet
| Self::Claude3_7SonnetThinking
@@ -280,6 +306,8 @@ impl Model {
| Self::ClaudeOpus4_1Thinking
| Self::ClaudeSonnet4
| Self::ClaudeSonnet4Thinking
+ | Self::ClaudeSonnet4_5
+ | Self::ClaudeSonnet4_5Thinking
| Self::Claude3_5Sonnet
| Self::Claude3_7Sonnet
| Self::Claude3_7SonnetThinking
@@ -299,6 +327,7 @@ impl Model {
Self::ClaudeOpus4
| Self::ClaudeOpus4_1
| Self::ClaudeSonnet4
+ | Self::ClaudeSonnet4_5
| Self::Claude3_5Sonnet
| Self::Claude3_7Sonnet
| Self::Claude3_5Haiku
@@ -308,6 +337,7 @@ impl Model {
Self::ClaudeOpus4Thinking
| Self::ClaudeOpus4_1Thinking
| Self::ClaudeSonnet4Thinking
+ | Self::ClaudeSonnet4_5Thinking
| Self::Claude3_7SonnetThinking => AnthropicModelMode::Thinking {
budget_tokens: Some(4_096),
},
@@ -30,6 +30,13 @@ pub enum Model {
alias = "claude-sonnet-4-thinking-latest"
)]
ClaudeSonnet4Thinking,
+ #[serde(rename = "claude-sonnet-4-5", alias = "claude-sonnet-4-5-latest")]
+ ClaudeSonnet4_5,
+ #[serde(
+ rename = "claude-sonnet-4-5-thinking",
+ alias = "claude-sonnet-4-5-thinking-latest"
+ )]
+ ClaudeSonnet4_5Thinking,
#[serde(rename = "claude-opus-4", alias = "claude-opus-4-latest")]
ClaudeOpus4,
#[serde(rename = "claude-opus-4-1", alias = "claude-opus-4-1-latest")]
@@ -144,6 +151,14 @@ impl Model {
Ok(Self::Claude3_7Sonnet)
} else if id.starts_with("claude-3-7-sonnet-thinking") {
Ok(Self::Claude3_7SonnetThinking)
+ } else if id.starts_with("claude-sonnet-4-5-thinking") {
+ Ok(Self::ClaudeSonnet4_5Thinking)
+ } else if id.starts_with("claude-sonnet-4-5") {
+ Ok(Self::ClaudeSonnet4_5)
+ } else if id.starts_with("claude-sonnet-4-thinking") {
+ Ok(Self::ClaudeSonnet4Thinking)
+ } else if id.starts_with("claude-sonnet-4") {
+ Ok(Self::ClaudeSonnet4)
} else {
anyhow::bail!("invalid model id {id}");
}
@@ -153,6 +168,8 @@ impl Model {
match self {
Model::ClaudeSonnet4 => "claude-sonnet-4",
Model::ClaudeSonnet4Thinking => "claude-sonnet-4-thinking",
+ Model::ClaudeSonnet4_5 => "claude-sonnet-4-5",
+ Model::ClaudeSonnet4_5Thinking => "claude-sonnet-4-5-thinking",
Model::ClaudeOpus4 => "claude-opus-4",
Model::ClaudeOpus4_1 => "claude-opus-4-1",
Model::ClaudeOpus4Thinking => "claude-opus-4-thinking",
@@ -214,6 +231,9 @@ impl Model {
Model::ClaudeSonnet4 | Model::ClaudeSonnet4Thinking => {
"anthropic.claude-sonnet-4-20250514-v1:0"
}
+ Model::ClaudeSonnet4_5 | Model::ClaudeSonnet4_5Thinking => {
+ "anthropic.claude-sonnet-4-5-20250929-v1:0"
+ }
Model::ClaudeOpus4 | Model::ClaudeOpus4Thinking => {
"anthropic.claude-opus-4-20250514-v1:0"
}
@@ -277,6 +297,8 @@ impl Model {
match self {
Self::ClaudeSonnet4 => "Claude Sonnet 4",
Self::ClaudeSonnet4Thinking => "Claude Sonnet 4 Thinking",
+ Self::ClaudeSonnet4_5 => "Claude Sonnet 4.5",
+ Self::ClaudeSonnet4_5Thinking => "Claude Sonnet 4.5 Thinking",
Self::ClaudeOpus4 => "Claude Opus 4",
Self::ClaudeOpus4_1 => "Claude Opus 4.1",
Self::ClaudeOpus4Thinking => "Claude Opus 4 Thinking",
@@ -346,6 +368,8 @@ impl Model {
| Self::ClaudeOpus4
| Self::ClaudeOpus4_1
| Self::ClaudeSonnet4Thinking
+ | Self::ClaudeSonnet4_5
+ | Self::ClaudeSonnet4_5Thinking
| Self::ClaudeOpus4Thinking
| Self::ClaudeOpus4_1Thinking => 200_000,
Self::AmazonNovaPremier => 1_000_000,
@@ -361,6 +385,7 @@ impl Model {
Self::Claude3Opus | Self::Claude3Sonnet | Self::Claude3_5Haiku => 4_096,
Self::Claude3_7Sonnet | Self::Claude3_7SonnetThinking => 128_000,
Self::ClaudeSonnet4 | Self::ClaudeSonnet4Thinking => 64_000,
+ Self::ClaudeSonnet4_5 | Self::ClaudeSonnet4_5Thinking => 64_000,
Self::ClaudeOpus4
| Self::ClaudeOpus4Thinking
| Self::ClaudeOpus4_1
@@ -385,7 +410,9 @@ impl Model {
| Self::ClaudeOpus4_1
| Self::ClaudeOpus4_1Thinking
| Self::ClaudeSonnet4
- | Self::ClaudeSonnet4Thinking => 1.0,
+ | Self::ClaudeSonnet4Thinking
+ | Self::ClaudeSonnet4_5
+ | Self::ClaudeSonnet4_5Thinking => 1.0,
Self::Custom {
default_temperature,
..
@@ -409,6 +436,8 @@ impl Model {
| Self::ClaudeOpus4_1Thinking
| Self::ClaudeSonnet4
| Self::ClaudeSonnet4Thinking
+ | Self::ClaudeSonnet4_5
+ | Self::ClaudeSonnet4_5Thinking
| Self::Claude3_5Haiku => true,
// Amazon Nova models (all support tool use)
@@ -439,6 +468,8 @@ impl Model {
| Self::Claude3_7SonnetThinking
| Self::ClaudeSonnet4
| Self::ClaudeSonnet4Thinking
+ | Self::ClaudeSonnet4_5
+ | Self::ClaudeSonnet4_5Thinking
| Self::ClaudeOpus4
| Self::ClaudeOpus4Thinking
| Self::ClaudeOpus4_1
@@ -488,9 +519,11 @@ impl Model {
Model::Claude3_7SonnetThinking => BedrockModelMode::Thinking {
budget_tokens: Some(4096),
},
- Model::ClaudeSonnet4Thinking => BedrockModelMode::Thinking {
- budget_tokens: Some(4096),
- },
+ Model::ClaudeSonnet4Thinking | Model::ClaudeSonnet4_5Thinking => {
+ BedrockModelMode::Thinking {
+ budget_tokens: Some(4096),
+ }
+ }
Model::ClaudeOpus4Thinking | Model::ClaudeOpus4_1Thinking => {
BedrockModelMode::Thinking {
budget_tokens: Some(4096),
@@ -542,6 +575,8 @@ impl Model {
| Model::Claude3_7SonnetThinking
| Model::ClaudeSonnet4
| Model::ClaudeSonnet4Thinking
+ | Model::ClaudeSonnet4_5
+ | Model::ClaudeSonnet4_5Thinking
| Model::ClaudeOpus4
| Model::ClaudeOpus4Thinking
| Model::ClaudeOpus4_1
@@ -575,6 +610,8 @@ impl Model {
| Model::Claude3_7SonnetThinking
| Model::ClaudeSonnet4
| Model::ClaudeSonnet4Thinking
+ | Model::ClaudeSonnet4_5
+ | Model::ClaudeSonnet4_5Thinking
| Model::Claude3Haiku
| Model::Claude3Sonnet
| Model::MetaLlama321BInstructV1
@@ -592,7 +629,9 @@ impl Model {
| Model::Claude3_7Sonnet
| Model::Claude3_7SonnetThinking
| Model::ClaudeSonnet4
- | Model::ClaudeSonnet4Thinking,
+ | Model::ClaudeSonnet4Thinking
+ | Model::ClaudeSonnet4_5
+ | Model::ClaudeSonnet4_5Thinking,
"apac",
) => Ok(format!("{}.{}", region_group, model_id)),
@@ -631,6 +670,10 @@ mod tests {
Model::ClaudeSonnet4.cross_region_inference_id("eu-west-1")?,
"eu.anthropic.claude-sonnet-4-20250514-v1:0"
);
+ assert_eq!(
+ Model::ClaudeSonnet4_5.cross_region_inference_id("eu-west-1")?,
+ "eu.anthropic.claude-sonnet-4-5-20250929-v1:0"
+ );
assert_eq!(
Model::Claude3Sonnet.cross_region_inference_id("eu-west-1")?,
"eu.anthropic.claude-3-sonnet-20240229-v1:0"