All Models
DeepSeek V4-Pro
1.6T params, 49B active MoE, MIT license, open weights; 80.6% SWE-bench Verified — highest open-weights score.
DeepSeek V4-Pro is the highest-scoring open-weights model as of mid-2026, with 80.6% on SWE-bench Verified. Built on a Mixture-of-Experts architecture with 1.6T total parameters and 49B active parameters, it matches frontier closed-weight models while remaining fully open under an MIT license. A promotional pricing of $0.435/$0.87 per million tokens was available through May 31, 2026, with standard pricing at $1.74/$3.48 thereafter.
DeepSeek V4-Pro
Made by
DeepSeek
Released
Apr 24, 2026
Context Window
1M
Pricing
$0.435 / $0.87 promo → $1.74 / $3.48 standard
Provider
DeepSeek