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DeepSeek

Is DeepSeek V3.1 out? Yes, since August 21, 2025

Yes. DeepSeek V3.1 was released on August 21, 2025.

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Have you used it? DeepSeek V3.1

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Lab
DeepSeek
Family
DeepSeek
Release date
Source
DeepSeek · Change Log

What changed

  • context 164k tokens · Context window of DeepSeek V3.1. R1 0528 is the previous model of the same tier, but the gap is beyond what a percentage explains.
  • price -50 % · Prompt price compared with R1 0528, same tier in this family. Went from $0.500 / MTok to $0.250 / MTok. Lower is better.

About DeepSeek V3.1

DeepSeek-V3.1 is a large hybrid reasoning model (671B parameters, 37B active) that supports both thinking and non-thinking modes via prompt templates. It extends the DeepSeek-V3 base with a two-phase long-context...

Next DeepSeek model to watch

Questions

When was DeepSeek V3.1 released?
DeepSeek V3.1 was released on August 21, 2025.
Who makes DeepSeek V3.1?
DeepSeek V3.1 is made by DeepSeek.
What comes after DeepSeek V3.1?
DeepSeek V3.1 Terminus, released on September 22, 2025.