DeepSeek-V3.1正式发布，迈向 Agent 时代的第一步

Group 1 - DeepSeek officially released DeepSeek-V3.1, featuring a hybrid reasoning architecture that supports both thinking and non-thinking modes [1] - The new version, DeepSeek-V3.1-Think, offers higher thinking efficiency, providing answers in a shorter time compared to DeepSeek-R1-0528 [1] - Enhanced agent capabilities have been achieved through post-training optimization, significantly improving performance in tool usage and intelligent tasks [1] Group 2 - Starting from September 6, 2025, the pricing for API calls on the DeepSeek open platform will be adjusted, with input costs set at 0.5 to 4 yuan per million tokens (cache hit) and 4 yuan per million tokens (cache miss), while output costs will be 12 yuan per million tokens [1]