GPT-5.5 Retires From ChatGPT and Codex on October 14: What Replaces It on Each Plan
OpenAI retires GPT-5.5 from ChatGPT and Codex on 14 October 2026. Paid plans move to GPT-6 Sol, Free and Go to GPT-6 Luna, and the API keeps GPT-5.5.
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OpenAI Codex
Reporting and analysis related to OpenAI Codex.
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