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OpenAI Unveils GPT-6.1 Sol: Near-Astra Intelligence at a Fraction of the Cost
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Firstpost•30-09-2026, 00:00
OpenAI Unveils GPT-6.1 Sol: Near-Astra Intelligence at a Fraction of the Cost
- •OpenAI introduced GPT-6.1 Sol at DevDay 2026, a new variant in the GPT-6 lineup offering a balance of performance and affordability for professional tasks.
- •GPT-6.1 Sol significantly improves factuality over GPT-6 Sol, reducing factual errors by approximately 32% to 7.7%.
- •The new model achieves performance comparable to GPT-6 Astra at less than one-fifth of the cost per task across various reasoning settings.
- •GPT-6.1 Sol matches GPT-6 Astra on complex software engineering tasks (DeepSWE v1.1) and outperforms Opus 5.5 in professional workloads.
- •Available to Plus, Pro, Business, Enterprise, and Edu users in ChatGPT Work and Codex, with API access priced at $2 per million input tokens and $10 per million output tokens.
Key Questions Answered
The standard API pricing for GPT-6.1 Sol is $2 per million input tokens, $0.10 per million cached input tokens, and $10 per million output tokens.
GPT-6.1 Sol is available starting today to all Plus, Pro, Business, Enterprise, and Edu users within ChatGPT Work and Codex.
At low reasoning effort, GPT-6.1 Sol reduced the share of responses containing a factual error from 11.4% down to 7.7%, representing a reduction of approximately 32%.
