deepseek/deepseek-v4-flash-0731DeepSeek V4 Flash 0731 is DeepSeek’s open-weights AI model, released Jul 31, 2026. It scores 155 on the Epoch Capabilities Index, costs $0.06/M input and $0.18/M output tokens, and handles a 1M-token context window. Its strongest use case is coding, where it ranks in the 68th percentile of the models Model Beat tracks.
DeepSeek V4 Flash 0731 is a sparse mixture-of-experts model from DeepSeek, with 13B active parameters out of 284B total.
Scores on standardized evaluations. Higher is better — and rank shows where DeepSeek V4 Flash 0731 lands among all models tracked on Model Beat.
Abstract visual reasoning
Harder abstract reasoning
Graduate-level scientific reasoning
Frontier of human expert knowledge
Common-sense trick questions
Factual accuracy & hallucination
Novel ML problem-solving
Scientific research coding
Human-rated web development
Olympiad-qualifier math
DeepSeek V4 Flash 0731 is a sparse mixture-of-experts model from DeepSeek, with 13B active parameters out of 284B total.
DeepSeek V4 Flash 0731 is an AI model developed by DeepSeek, part of the DeepSeek family, released Jul 31, 2026.
DeepSeek V4 Flash 0731 is served from $0.06 per million input tokens and $0.18 per million output tokens (cheapest credible provider on OpenRouter: DeepInfra).
DeepSeek V4 Flash 0731 supports a context window of up to 1M tokens.
On standardized evaluations tracked by Epoch AI, DeepSeek V4 Flash 0731 scores 91.0% on GPQA Diamond, 1580 on WebDev Arena, 38.6% on Humanity's Last Exam.
DeepSeek V4 Flash 0731 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 Oct 29, 2026.