OpenAI推出GPT-6.1 Sol，性能接近GPT-6 Astra且成本更低

openai launched gpt-6.1 sol at its devday event, a new model that approaches gpt-6 astra's performance in agentic coding, computer use, and professional work. gpt-6.1 sol costs one-fifth of gpt-6 astra's standard input and output token prices. the new model improves factual accuracy, reducing errors from 11.4% to 7.7% at low reasoning effort. gpt-6.1 sol also enhances safety features, such as flagging broken search tools and following explicit restrictions. it's available to plus, pro, business, enterprise, and edu users in chatgpt work and codex, but not yet in chat.