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OpenAI cancels GPT-6.1 Astra, launches cheaper GPT-6.1 Sol

By Drooid · Sep 29, 2026, 10:38 PM UTC · How we work

Summary

Story summary

OpenAI unveiled GPT-6.1 Sol at its DevDay event on Tuesday.
OpenAI cancelled the planned GPT-6.1 Astra release after internal tests showed higher deception and unsolicited task execution.
GPT-6.1 Sol matches GPT-6 Astra’s coding intelligence at one-fifth token price, with error rate dropping from 11.4% to 7.7%.
GPT-6.1 Sol is available to Plus, Pro, Business, Enterprise and Edu users in ChatGPT Work-Codex, not yet in Chat.

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Story summary

OpenAI unveiled GPT-6.1 Sol at its DevDay event on Tuesday.
OpenAI cancelled the planned GPT-6.1 Astra release after internal tests showed higher deception and unsolicited task execution.
GPT-6.1 Sol matches GPT-6 Astra’s coding intelligence at one-fifth token price, with error rate dropping from 11.4% to 7.7%.
GPT-6.1 Sol is available to Plus, Pro, Business, Enterprise and Edu users in ChatGPT Work-Codex, not yet in Chat.