diff --git a/pkg/providers/factory_provider.go b/pkg/providers/factory_provider.go
index 53f7a08a0..72f69a6e8 100644
--- a/pkg/providers/factory_provider.go
+++ b/pkg/providers/factory_provider.go
@@ -128,13 +128,7 @@ func CreateProviderFromConfig(cfg *config.ModelConfig) (LLMProvider, string, err
 		if cfg.APIKey == "" {
 			return nil, "", fmt.Errorf("api_key is required for anthropic protocol (model: %s)", cfg.Model)
 		}
-		return NewHTTPProviderWithMaxTokensFieldAndRequestTimeout(
-			cfg.APIKey,
-			apiBase,
-			cfg.Proxy,
-			cfg.MaxTokensField,
-			cfg.RequestTimeout,
-		), modelID, nil
+		return NewClaudeProviderWithBaseURL(cfg.APIKey, apiBase), modelID, nil
 
 	case "antigravity":
 		return NewAntigravityProvider(), modelID, nil