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DeepSeek

Is DeepSeek V4.1 Flash out? Yes, since September 10, 2026

Yes. DeepSeek V4.1 Flash was released on September 10, 2026.

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Have you used it? DeepSeek V4.1 Flash

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DeepSeek
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DeepSeek
Release date
Source
DeepSeek · Change Log

What changed

  • context 1.05M tokens · Context window of DeepSeek V4.1 Flash. DeepSeek V4 Flash Vision Exp is the previous model of the same tier, but the gap is beyond what a percentage explains.
  • price -79 % · Prompt price compared with DeepSeek V4 Flash Vision Exp, same tier in this family. Went from $0.216 / MTok to $0.045 / MTok. Lower is better.

About DeepSeek V4.1 Flash

DeepSeek V4.1 Flash is a sparse mixture-of-experts model from DeepSeek, and the first built on the company's Causal Encoder-Decoder (CED) architecture. It activates 8B parameters on input and 16B on...

Next DeepSeek model to watch

Questions

When was DeepSeek V4.1 Flash released?
DeepSeek V4.1 Flash was released on September 10, 2026.
Who makes DeepSeek V4.1 Flash?
DeepSeek V4.1 Flash is made by DeepSeek.
What comes after DeepSeek V4.1 Flash?
DeepSeek V4.1 Flash 1017, released on October 17, 2026.