#mit-license

DeepSeek V4-Flash-0731 Official Release: Agentic Coding at 99% Lower Cost, MIT License, and the New Floor for AI Inference Pricing

DeepSeek officially released DeepSeek-V4-Flash-0731 on July 31, 2026 — a 284B/13B MoE model with substantially enhanced agentic capabilities, MIT-licensed weights, 1M-token context, and API pricing at $0.14/M input tokens (99% cheaper than Claude Opus 4.8). Covers the architecture (CSA+HCA hybrid attention, mHC connections, Muon optimizer), DSpark speculative decoding, benchmark results across 9 agentic coding tasks, Deep Code CLI, Responses API/Codex integration, and the strategic implications for the global AI price war.