PDF guide
Run GPT-5.6 Inside Claude Code. Here's the Setup.
The OpenAI Codex plugin connects GPT-5.6 directly to your Claude Code session. One install, two models, no switching tabs. This guide covers the setup step by step and four practical ways to use both models together from day one.
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What's inside
- How to Install the Plugin
- Use 1: Code Review With a Second Opinion
- Use 2: Generate Tests, Then Verify Them
- Use 3: Plain-English Explanations for Non-Technical Stakeholders
- Use 4: Rapid Prototyping With Dual-Model Iteration