If you dont know, you can use your Codex subscription inside Claude Code. That means Fable 5 can call GPT 5.5 + 10 subagents to work together. This will save you atleast 60% of your Fable 5 token consumption. You just need to setup once. Here's how: Step 1: Open Claude Code and install the Codex plugin /plugin marketplace add openai/codex-plugin-cc /plugin install codex@openai-codex /reload-plugins Step 2: Tell Fable 5 to finish the setup Paste this prompt: "Set up Codex inside this Claude Code environment. Use the official OpenAI Codex plugin that was just installed. Run /codex:setup. If Codex CLI is missing, install it. If Codex is installed but not authenticated, ask me to authenticate with my ChatGPT account. After auth is complete, verify that Codex works from inside Claude Code. Then confirm that the codex:codex-rescue sub-agent is available. Do not change any project code during setup." Step 3: Authentication Fable 5 will trigger the Codex setup. You authenticate your ChatGPT/Codex account once. After that, Codex runs from inside Claude Code using your Codex subscription. Step 4: Tell Fable 5 how to delegate work Paste this prompt: "From now on, use this workflow: You are the orchestrator. > Use Fable 5 for planning, repo understanding, architecture decisions, task decomposition, and final review. > Use codex-rescue as the executor when a task needs heavy implementation, debugging, test fixing, refactoring, or multi-file code edits. When delegating to Codex, use /codex:rescue. Prefer GPT 5.5 (xtra high) as the go to Codex model. Keep Codex tasks focused and specific. After Codex finishes, inspect the result yourself before accepting it. Do not blindly trust Codex output." Pro Tips: 1. Turn this into a skill (i named it Fable-GPT) and call that skill at the start of the session. 2. Use skill + goal to get the heavy tasks done. Goals are best for long horizon tasks. 3. If you're on Codex 20x pro plan, you can use subagents. I use 5-7 agents at one time and never hit 5-hour limit. 4. Context rot is real so clear the conversation after 4 compactions. Use /handoff skill to preserve context.