The agent harness matters just as much as the AI model. Using Hermes or OpenClaw feels like night vs day when using OpenAI’s apps even when using the same exact model.

You can even see difference in agent harnesses using the same model in the same company if you compare Gemini CLI with AntiGrav. They are different experiences.

I’m pretty sure Apple’s agent harness will be drastically different from Google’s even with the same model