DeepSeek-V4 Pro is a cutting-edge open-source model featuring a 1-million-token context window and a novel architecture with significantly faster inference. It excels at repository-level coding tasks, achieving 83.7% on SWE-bench Verified, and can diagnose and fix bugs spanning multiple files across entire codebases. The model includes optimized memory modules for long-term recall and offers reduced memory consumption through efficient KV cache storage.