OpenAI releases GPT-6.1 Sol for near-Astra complex-work performance at lower cost

What changed

OpenAI released GPT-6.1 Sol on September 29 as a lower-cost model for complex coding, computer use and professional work. The API catalog lists a 1.05M-token context window, up to 128K output tokens, and standard pricing of $2 per million input tokens and $10 per million output tokens. OpenAI says it uses Astra's main safeguard stack; capability comparisons remain publisher evaluations.