deepseek-v3-1DeepSeek-V3.1 is DeepSeek’s open-weights AI model, released Aug 21, 2025. It scores 140 on the Epoch Capabilities Index.
An updated version of DeepSeek V3.
Scores on standardized evaluations. Higher is better — and rank shows where DeepSeek-V3.1 lands among all models tracked on Model Beat.
Graduate-level scientific reasoning
Frontier of human expert knowledge
Broad expert knowledge
Common-sense trick questions
Novel ML problem-solving
Contamination-free coding
Scientific research coding
Olympiad-qualifier math
Tool-agent-user reliability
An updated version of DeepSeek V3.
DeepSeek-V3.1 is an AI model developed by DeepSeek, part of the DeepSeek family, released Aug 21, 2025.
On standardized evaluations tracked by Epoch AI, DeepSeek-V3.1 scores 83.3% on MMLU-Pro, 36.7% on SciCode, 57.7% on LiveCodeBench.
DeepSeek-V3.1 is released with open weights (Open weights (unrestricted)), so the model can be downloaded and self-hosted.
Benchmark data from Epoch AI (CC BY) and Artificial Analysis; pricing, specs & descriptions from OpenRouter. Data updated Aug 20, 2026.