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feat(go/plugins/compat_oai): add support for Claude 4.1 and 4.5 models #3768

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Merged
merged 1 commit into from
Nov 5, 2025
+32 −2
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feat(go/plugins/compat_oai): add support for Claude 4.1 and 4.5 models #3768

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30 changes: 30 additions & 0 deletions go/plugins/compat_oai/anthropic/anthropic.go
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Original file line number Diff line number Diff line change
Expand Up @@ -32,6 +32,36 @@ const (

// Supported models: https://docs.anthropic.com/en/docs/about-claude/models/all-models
var supportedModels = map[string]ai.ModelOptions{
"claude-opus-4-1-20250805": {
Label: "Claude 4.1 Opus",
Supports: &ai.ModelSupports{
Multiturn: true,
Tools: false, // NOTE: Anthropic supports tool use, but it's not compatible with the OpenAI API
SystemRole: true,
Media: true,
},
Versions: []string{"claude-opus-4-1-latest", "claude-opus-4-1-20250805"},
},
"claude-sonnet-4-5-20250929": {
Label: "Claude 4.5 Sonnet",
Supports: &ai.ModelSupports{
Multiturn: true,
Tools: false, // NOTE: Anthropic supports tool use, but it's not compatible with the OpenAI API
SystemRole: true,
Media: true,
},
Versions: []string{"claude-sonnet-4-5-latest", "claude-sonnet-4-5-20250929"},
},
"claude-haiku-4-5-20251001": {
Label: "Claude 4.5 Haiku",
Supports: &ai.ModelSupports{
Multiturn: true,
Tools: false, // NOTE: Anthropic supports tool use, but it's not compatible with the OpenAI API
SystemRole: true,
Media: true,
},
Versions: []string{"claude-haiku-4-5-latest", "claude-haiku-4-5-20251001"},
},
"claude-3-7-sonnet-20250219": {
Label: "Claude 3.7 Sonnet",
Supports: &ai.ModelSupports{
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4 changes: 2 additions & 2 deletions go/plugins/compat_oai/anthropic/anthropic_live_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -34,10 +34,10 @@ func TestPlugin(t *testing.T) {

ctx := context.Background()

// Initialize genkit with claude-3-7-sonnet as default model
// Initialize genkit with claude-4-5-sonnet as default model
g := genkit.Init(
ctx,
genkit.WithDefaultModel("anthropic/claude-3-7-sonnet-20250219"),
genkit.WithDefaultModel("anthropic/claude-sonnet-4-5-20250929"),
genkit.WithPlugins(&anthropic.Anthropic{
Opts: []option.RequestOption{
option.WithAPIKey(apiKey),
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