OpenAI introduces GPT-6.1 Sol for coding and workflows at lower prices
OpenAI launched GPT-6.1 Sol, an upgrade to GPT-6 Sol, claiming it nearly matches GPT-6 Astra in agentic coding, document analysis, and multi-step business workflows at one-fifth of Astra’s input and output token prices. The model costs $0.10 per million cached input tokens—95% cheaper than standard input pricing and 50% cheaper than GPT-6 Sol’s cached input rate. It also delivers substantial…
Key points
- GPT-6.1 Sol matches GPT-6 Astra’s performance in coding and workflows at one-fifth the cost
- Cached input pricing drops to $0.10 per million tokens, 95% cheaper than standard rates
- Available now in ChatGPT Work/Codex and OpenAI API, with Ultrafast variant arriving soon
OpenAI highlights GPT-6.1 Sol’s gains in factual accuracy, reducing errors from 11.4% to 7.7% on difficult prompts. It also shows better alignment with user intent and safety constraints, though GPT-6 Astra still leads in scientific workflows. The model is now available in ChatGPT Work and Codex for Plus, Pro, Business, Enterprise, and Edu users, as well as via the OpenAI API as gpt-6.1-sol. A faster variant, GPT-6.1 Sol Ultrafast, is coming soon.
Model pages: GPT-6.1 Sol → · GPT-6 Sol → · GPT-6 Astra →
The story so far
4 episodes →- OpenAI introduces GPT-6.1 Sol for coding and workflows at lower pricesthis story
OpenAI releases GPT-6.1 Sol, saying it nearly matches Astra on agentic coding and professional work at one-fifth of Astra's standard prices, in Work and Codex
openai.com · 22 September 2026
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Coverage and discussion
5sources- Hacker News discussion · 243 pointsnews.ycombinator.com
- OpenAI launches GPT-6.1 Sol, says it nearly matches GPT-6 Astra and costs lessPress · TechCrunch AI ·
- GPT-6.1 Sol comes close to Astra at a fifth of the pricePress · The Decoder ·
- OpenAI GPT-6.1 Sol with Astra level AI launched: What’s new, pricing, availability and morePress · digit.in ·
- 156 Real-World Examples of How to Use GPT-6 Luna and SolPress · hackernoon.com ·
The headline, key points and digest above were generated by Digest AI's editorial model from the linked sources. Automated summaries can contain errors: the sources are the record. Spotted a mistake? Tell us. Published by Martin K., who runs Digest AI and handles corrections.
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