OpenAI launched GPT-6.1 Sol on September 29 , just a week after it launched GPT-6 Sol . OpenAI marketed 6.1 as an upgrade to 6 and as a cheaper near-match for Astra. OpenAI says the new model nearly matches Astra on agentic coding, computer use, and professional work. It also says GPT-6.1 Sol makes fewer factual errors than GPT-6 Sol at low reasoning effort. OpenAI calls it “near-Astra intelligence for a fifth of the price.” OpenAI also halved cached-input pricing, from GPT-6 Sol’s $0.20 to $0.10. GPT-6.1 Sol costs $2 per million input tokens and $10 per million output tokens, with cached...

Source: The New Stack