DeepSeek announces the preview release of DeepSeek-V4, including two models: V4-Pro (1.6T total / 49B active params) and V4-Flash (284B total / 13B active params), both open-sourced with a default 1M context window. The models feature enhanced agentic capabilities, world-class reasoning, and structural innovations for long-context efficiency. The API is updated and available today, and the older deepseek-chat and deepseek-reasoner models will be retired after July 24, 2026.
DeepSeek captures 17% token share in May; Anthropic leads spend
DeepSeek released two new MoE models, DeepSeek-V4-Pro (1.6T parameters, 49B active) and DeepSeek-V4-Flash (284B parameters, 13B active), both with a 1M-token context window. The models are designed for efficient long-context inference and agentic tasks, featuring hybrid attention (CSA and HCA) that reduces FLOPs and KV cache memory, plus post-training improvements for multi-turn tool use.
deepseek-v4-flash · 1,436 (1,432–1,440) · 51,987 votes
DeepSeek-V4-Flash · 1,436 (1,432–1,440) · 104th
DeepSeek-V4-Flash · 1,436 · $0.11 per 1M tokens
DeepSeek-V4-Flash · 1,436 · $0.11 per 1M tokens
LMArena, CC BY 4.0, 15 October 2026 · prices OpenRouter, list price blended 3:1, read 22 October 2026
