Text models
Claude Opus 5.5 vs. GPT-6 integration
Compare text and tool behavior while keeping the application contract stable.
Test the same tool workflow
Check function schemas, argument parsing, call IDs, and returned tool results on both models. Validate the final response in your application.
Separate SDK and model changes
Verify each client against a known working request before swapping model IDs. Compare output quality, latency, and charges using the same tasks.