DeepSeek-V3 vs DeepSeek V5 (Leaked Staging)

A direct, empirical evaluation of DeepSeek-V3 (DeepSeek-AI) against DeepSeek V5 (Leaked Staging) (DeepSeek AI).

DeepSeek-V3

Developed by DeepSeek-AI · 671B parameters

Cost-effective high-throughput general reasoning and bilingual generation.

DeepSeek V5 (Leaked Staging)

Developed by DeepSeek AI · 1.8 Trillion (Sparse MoE) parameters

Autonomous coding agents scoring 81.4% on SWE-bench Verified, zero-telemetry self-hosting, sub-cent 1M-token processing, and formal mathematical proofs.

Metric DeepSeek-V3 DeepSeek V5 (Leaked Staging)
SWE-bench Verified 49.2% 81.4%
MMLU-Pro 75.9% 87.5%
MATH-500 90.2% 96.8%
Context Window 128,000 tokens 1,000,000 tokens
Input Pricing (per 1M) $0.14 $0.12
Output Pricing (per 1M) $0.28 $0.48