GPT-6.1 Sol is now live at http://B.AI As an upgraded version of GPT-6 Sol, GPT-6.1 Sol is designed for complex software engineering, computer operations, and professional workflows. Officially positioned to approach GPT-6 Astra in intelligent agent programming, computer usage, and professional tasks, its standard input/output token price is about 1/5 of Astra. The model supports a 1.05M token context and up to 128K output, offers 5 adjustable inference tiers, and includes features like prompt caching and Responses API Multi-agent delegation (Beta). The http://B.AI API and Web Chat are now available. Try it here: https://chat.b.ai/chat Learn more: https://docs.b.ai/zh-Hans/llmservice/models/gpt-6-1-sol/