GPT-6.1 Sol replaces GPT-6 Sol after just 7 days, with near-Astra intelligence
The GPT-6.1 Sol model has been released, offering improved intelligence and cost efficiency compared to its predecessor, GPT-6 Sol. It achieves performance levels near the top-tier GPT-6 Astra while significantly reducing the cost per task.
Why it matters
Rapid iteration in AI model development is driving down costs and increasing accessibility for agentic workloads.
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GPT-6.1 Sol replaces GPT-6 Sol after just 7 days. It scores 1 point below GPT-6 Astra in the Intelligence Index at less than one quarter of the Cost per Task.
Pricing matches GPT-6 Sol at $2/$10 per million input/output tokens, except that the cache read discount rises from 90% to 95%. GPT-6.1 Sol’s overall blended price for agentic workloads is therefore slightly lower than GPT-6 Sol. This represents an additional price cut, following GPT-6 Sol’s original 50% discount from GPT-5.6 Sol.
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