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OpenAI launches GPT-6.1 Sol, says it nearly matches GPT-6 Astra and costs less

29 Sep 2026

OpenAI launches GPT-6.1 Sol, says it nearly matches GPT-6 Astra and costs less

At OpenAI’s DevDay event on Tuesday, the company showed off GPT-6.1 Sol, a mere week after it launched GPT-6 Sol.

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