Coding
- Codex retires GPT-5.5, moves to GPT-6.1 Sol
OpenAI removed GPT-5.5 from Codex for ChatGPT sign-ins on the 14th of October 2026. Paid plans move to GPT-6.1 Sol, which costs a third as much per output token on the API.
OpenAI removed GPT-5.5 from Codex for ChatGPT sign-ins on the 14th of October 2026. Paid plans move to GPT-6.1 Sol, which costs a third as much per output token on the API.