GPT-5.6 is now publicly available, and Peter Yang ran it head-to-head against Claude Fable 5 across six practical tasks: building an interactive travel website, generating a 3D Star Fox-style game in one shot, editing and publishing short videos via browser use, planning a mobile app feature, delivering personalized life and business advice, and refactoring a personal AI operating system.
The test covers model tiers and pricing before touching any output quality, which matters because cost-per-task shapes real adoption decisions. The one-shot 3D game build and the browser-use video publishing segment are the sections worth watching in full: those two tasks expose where each model's reasoning ceiling actually sits under generative pressure, not just on clean text prompts.
Yang ends with a daily-driver recommendation and a breakdown of each model's specific strengths and weaknesses. The written post at creatoreconomy.so goes deeper on the methodology if you want the results without the runtime.
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