Open Source
DeepSeek V4-Pro Tops Open-Weight Leaderboards Under MIT License
July 11, 2026
DeepSeek has released V4-Pro, the strongest open-weight model to date, matching leading closed models on coding and mathematical reasoning benchmarks. Released under a permissive MIT license with a one-million-token context window, it enables free commercial use and self-hosting, accelerating enterprise adoption of open frontier AI.