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Their other posts in the index, biggest breakout first.
Fable 5 users are now paying an extra $200 to use OpenAI's GPT-5.5 to combine the two models together for maximum performance. Instead of relying on a single model, these elite engineers are combining them both. They are using Fable 5 strictly for high-level planning and architectural layouts, and then they're handing it off to the mechanical, more cost-effective GPT-5.5 via the Codex CLI. And you can install this right now inside of your Claude code using the GitHub repo. And this is exactly how you orchestrate modern agentic workflows. One is the brain and the other is the brawn. So save this video right now and let me know in the comments if you guys are using this already.