# DeepSeek V4.1 Flash: Open Weights, $0.003/M Tokens

> Source: <https://byteiota.com/deepseek-v4-1-flash-open-weights-0-003-m-tokens/>
> Published: 2026-09-24 12:09:24+00:00

DeepSeek V4.1 Flash ships MIT open weights, beats Claude Opus 5 on DeepSWE at 74.2%, and costs $0.003/1M tokens cached. Here is what changed and when to use it.

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DeepSeek V4.1 Flash: Open Weights, $0.003/M Tokens
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