DeepSeek V3.1

DeepSeek V3.1

Developer	DeepSeek
Release date	August 21, 2025
Family	DeepSeek
Generation	DeepSeek V3.1
Level
Context window	164K tokens
Max output	147K tokens
Input	Text
Output	Text
Knowledge cutoff	2025-03-31
Weights	Open weights
Website	deepseek.com
Links	Model card Hugging Face

Part of a series on

input: $0.25
cached: $0.13
output: $0.95
Context: 164Ktokens
Released: 1y ago
Size: 671Bparameters

Specifications

Model

Developer: DeepSeek
Family: DeepSeek DeepSeek V3.1
Type: Language model
Released: August 21, 2025
Model ID: deepseek/deepseek-chat-v3.1

Capabilities

Input → output: Text → Text
Native context: 160K tokens
Max output: 147K tokens
Tokenizer: DeepSeek
Knowledge cutoff: 2025-03-31

Weights

Openness: Open weights
Size: 671B
Hugging Face: deepseek-ai/DeepSeek-V3.1

Sources:models.devOpenRouter

Metadata synced Nov 3, 2026, 11:17 PM UTC

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