DeepSeek24 Apr 2026ModelMajor

DeepSeek V4 Preview

Open V4-Pro (1.6T total, 49B active parameters) and V4-Flash models, with 1M-token context by default.

DeepSeek-V4 Preview is officially live & open-sourced! Welcome to the era of cost-effective 1M context length.

From the announcement

Official source

DeepSeek V4 Preview Releaseapi-docs.deepseek.com · published 24 Apr 2026

Benchmark	Score	Human-verified
SWE-bench Verified	80.6%	Yes
GPQA Diamond	90.1%	Yes

Reported by DeepSeek