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DeepSeek V4-Pro

Best all-round open model of 2026.

currentDeepSeek ↗Verified 2026-09-13

80.6%

SWE-Bench Verified

Specifications

LicenceMIT
Parameters—

Official links

DeepSeek official site

What matters

  • Tops open leaderboards on agentic coding and reasoning
  • MIT licence — no conditions
  • Pioneered aggressive cache-hit pricing at ~$0.07/M
  • DeepSeek routes all V4-Pro requests to V4.1 Flash from 14 September 2026

Best for everything open.

Compare with

All 5 side by side →

DeepSeek V4-Pro vs Qwen3.8-Flash-Next →DeepSeek V4-Pro vs DeepSeek V4.1 Flash →DeepSeek V4-Pro vs MiMo-V2.6-Pro →DeepSeek V4-Pro vs MiMo-V2.6-Flash →DeepSeek V4-Pro vs Atria Dawn Preview →

Also in Open-Weight Models

Qwen3.8-Flash-Next · AlibabaDeepSeek V4.1 Flash · DeepSeekMiMo-V2.6-Pro · XiaomiMiMo-V2.6-Flash · XiaomiAtria Dawn Preview · Shanghai AI Laboratory