Which Codex? You can run it in Codex CLI like this: OPENAI_DEFAULT_MODEL=gpt-5 codex No news yet on their Codex autonomous coding agent yet
Running Codex CLI with GPT-5 Model Configuration
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Which Codex? You can run it in Codex CLI like this: OPENAI_DEFAULT_MODEL=gpt-5 codex No news yet on their Codex autonomous coding agent yet