OpenAI releases GPT-6.1 Sol at a fifth of GPT-6 Astra’s token prices

OpenAI has released GPT-6.1 Sol, a cheaper model that it says nearly matches GPT-6 Astra on agentic coding, computer use and professional work. It costs a fifth of Astra’s standard input and output token prices, OpenAI said on Tuesday at its DevDay 2026 event.