AI TRENDS | B.AI to End Free Trial for DeepSeek V4 Flash Models on September 3

B.AI said DeepSeek V4 Flash and DeepSeek V4 Flash Vision Exp will end their free trial and begin discounted billing at 5 p.m. SGT on September 3, 2026. According to Odaily, the platform will also adopt DeepSeek's peak and off-peak pricing, charging 50% of the official price during peak hours and 25% of the official price during off-peak hours. Users who want to keep using free models will still have access to GLM 5.3 Flash, which has 320B total parameters, 18B activated parameters, and supports a 1M context window. B.AI said Qwen3.8 Flash, Hy3, and MiMo V2.5 will also remain free.