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DeepSeek V3.1

open source

DeepSeek model, released 21 Aug 2025.

$0.21
per 1M input tokens
$0.79
per 1M output tokens
$0.13
per 1M cached-read tokens
Calculate what your real prompts cost on DeepSeek V3.1

Price history

Price stable since we started tracking (7 Jul 2026). History will chart here as soon as it moves.

Specifications

Lab
DeepSeek
Released
21 Aug 2025
Context window
164k tokens
Max output
33k tokens
Input modalities
text
Output modalities
text
Knowledge cutoff
2025-03-31
Open source
Yes

Frequently asked questions

How much does DeepSeek V3.1 cost?

DeepSeek V3.1 costs $0.21 per 1M input tokens and $0.79 per 1M output tokens (list price, updated every 6 hours).

What is DeepSeek V3.1's context window?

DeepSeek V3.1 supports a 164k-token context window with up to 33k output tokens.

Related models

DeepSeek V3.1 — API Pricing, Context Window, Specs (2026) | AIToolScout | AIToolScout