GPT-6.1 Sol rolls out to all paid ChatGPT tiers and Codex today
OpenAI · x · 2026-09-30
OpenAI made GPT-6.1 Sol available today to all Plus, Pro, Business, Enterprise, and Edu users in ChatGPT Work and Codex. The company says it shows major alignment improvements over GPT-6 Sol—more transparent about limitations and more reliable at respecting user intent and safety constraints, closer to GPT-6 Astra.
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