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Switch default model to claude-opus-4-6 and use adaptive thinking

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Updates the default Anthropic model from claude-sonnet-4-5 to
claude-opus-4-6 and replaces beta headers with adaptive thinking
provider options for 4.6 models.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Bryan Helmkamp 2026-02-23 13:46:31 -05:00
parent 379e90c11d
commit e64c0a3328
2 changed files with 41 additions and 19 deletions
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4
crates/agent/src/cli.rs
View file

@ -54,7 +54,7 @@ fn default_model(provider: &str) -> &'static str {
"openai" => "gpt-5.2",
"gemini" => "gemini-3-pro-preview",
// anthropic and unknown providers
_ => "claude-sonnet-4-5",
_ => "claude-opus-4-6",
}
}
@ -453,7 +453,7 @@ mod tests {
#[test]
fn default_model_anthropic() {
assert_eq!(default_model("anthropic"), "claude-sonnet-4-5");
assert_eq!(default_model("anthropic"), "claude-opus-4-6");
}
#[test]

56
crates/agent/src/profiles/anthropic.rs
View file

@ -147,11 +147,16 @@ in the project. Keep changes minimal and focused on the task.";
}
fn provider_options(&self) -> Option<serde_json::Value> {
Some(serde_json::json!({
"anthropic": {
"beta_headers": ["interleaved-thinking-2025-05-14"]
}
}))
let model = self.model();
if model.contains("opus-4-6") || model.contains("sonnet-4-6") {
Some(serde_json::json!({
"anthropic": {
"thinking": {"type": "adaptive"}
}
}))
} else {
None
}
}
fn knowledge_cutoff(&self) -> &str {
@ -268,22 +273,39 @@ mod tests {
}
#[test]
fn anthropic_provider_options_include_beta_headers() {
let profile = AnthropicProfile::new("claude-sonnet-4-20250514");
fn anthropic_provider_options_include_thinking_for_opus_4_6() {
let profile = AnthropicProfile::new("claude-opus-4-6");
let options = profile.provider_options();
assert!(options.is_some(), "provider_options should return Some");
let options = options.unwrap();
let beta_headers = &options["anthropic"]["beta_headers"];
assert!(beta_headers.is_array(), "beta_headers should be an array");
let headers: Vec<&str> = beta_headers
.as_array()
.unwrap()
.iter()
.map(|v| v.as_str().unwrap())
.collect();
let thinking_type = options["anthropic"]["thinking"]["type"].as_str();
assert_eq!(
thinking_type,
Some("adaptive"),
"thinking type should be adaptive"
);
}
#[test]
fn anthropic_provider_options_include_thinking_for_sonnet_4_6() {
let profile = AnthropicProfile::new("claude-sonnet-4-6");
let options = profile.provider_options();
assert!(options.is_some(), "provider_options should return Some");
let options = options.unwrap();
let thinking_type = options["anthropic"]["thinking"]["type"].as_str();
assert_eq!(
thinking_type,
Some("adaptive"),
"thinking type should be adaptive"
);
}
#[test]
fn anthropic_provider_options_none_for_older_models() {
let profile = AnthropicProfile::new("claude-sonnet-4-5");
assert!(
headers.contains(&"interleaved-thinking-2025-05-14"),
"beta_headers should contain interleaved-thinking header"
profile.provider_options().is_none(),
"older models should not have provider_options"
);
}