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B-TIER technique

Fable 5 plus GPT-5.6 routing — Codex plugin inside Claude Code

cooper.simson · 2026-07-11T01:12:24.000Z · in AI Saves, Vol. 8
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100k ft — What is this?

Fable 5 plus GPT-5.6 routing — Codex plugin inside Claude Code
techniqueB-tier

50k ft — Why care?

Install Codex and the Codex plugin for Claude Code, then build a /route skill: Fable 5 interviews you and plans, GPT-5.6 executes, Fable reviews and loops until done. Splits usage across two subscriptions.
agentsopen sourceprompt engineeringsoftware developmentvideo production

10k ft — Key takeaways

• Cross-vendor routing stretches both usage limits • Use the stronger planner as reviewer, the other model as executor

5k ft — Tools & techniques

ChatGPT, Claude, Claude Code, Codex, OpenAI model routing, orchestrator-worker

1k ft — Deep-dive / try it

You can run the new OpenAI GPT 5.6 inside Claude code with Fable 5 to get 10 times the work done while saving on your usage limit. Comment ROUTE and I’ll send you the exact from-scratch setup. #fable5 #gpt5.6 #claude #chatgpt #teamwork
Transcript excerpt
Most people don't know that you can stop bringing through all your AI usage limits by running OpenAI's new GPD 5.6 inside Claude Code. All the smartest people in AI are doing this by making Fable 5 the boss and GPD 5.6 the worker. So stop arguing over which model is better and use them both on the same team. Let me show you. First, make sure you have an OpenAI account and go install Codex. Then go to GitHub and install the Codex plugin for Claude Code. Then use this prompt here to make sure Fable can call GPD 5.6. Then copy and give this prompt to Claude so it can build you a route skill that uses Fable as an orchestrator and 5.6 as the executor. Don't worry, I'll give this to you at the end. And now you're all set up. How it works is you just type slash route. Then Fable 5 takes over as the boss, interviews you, builds the plan, hands it to GPD 5.6. It then goes and builds everything. Fable reviews it, sends it back to 5.6 until your entire project's done. And the reason why you want to do this is because let's get real, both these models are amazing, but they're even better together. Plus you actually save way more usage limit on both models and you get to build way more things using list tokens. So save this video, send it to anyone who's still arguing one model is better than the other. And if you want my full build guide, plus the exact prompts that you can copy so you can set this up yourself, just comment route down below and I'll send it over to you.

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Collection: AI Saves, Vol. 8