diff --git a/backend/internal/pkg/apicompat/responses_to_anthropic_request.go b/backend/internal/pkg/apicompat/responses_to_anthropic_request.go
index f0a5b07e..49426b88 100644
--- a/backend/internal/pkg/apicompat/responses_to_anthropic_request.go
+++ b/backend/internal/pkg/apicompat/responses_to_anthropic_request.go
@@ -390,7 +390,7 @@ func convertResponsesToAnthropicTools(tools []ResponsesTool) []AnthropicTool {
 	var out []AnthropicTool
 	for _, t := range tools {
 		switch t.Type {
-		case "web_search":
+		case "web_search", "google_search", "web_search_20250305":
 			out = append(out, AnthropicTool{
 				Type: "web_search_20250305",
 				Name: "web_search",