DeepSeek

DeepSeek-V3.1

Tool callingReasoning
DeepSeek-V3.1 launch post cover

Hybrid-reasoning DeepSeek model with thinking and non-thinking modes

Context
131K
Released
1y ago
Parameters
—

Sources:models.dev

Benchmarks

DeepSWE is the primary coding benchmark where an exact model evaluation exists. Other sourced evaluations appear below; missing scores are not zero.

Not evaluated in DeepSWE 1.1 as of 2026-09-22. Results are only shown for exact model versions in the official dataset. Official leaderboard.

No benchmark results have been matched to this model yet.

Specifications

Developer
DeepSeek
Model family
DeepSeek
Type
Language model
Predecessor
—
Successor
—
Built on
DeepSeek-V3based on
Released
August 21, 2025
Model ID
deepseek/deepseek-v3.1
Openness
Open weights
License
MIT License
Parameters
—
Input modalities
text
Output modalities
text
Modality
text->text
Max output tokens
8K
Hugging Face
—
Source freshness
Metadata synced Oct 8, 2026, 10:17 PM UTC
Additional source evidence
Source model
deepseek/deepseek-v3.1
Source family
deepseek
Last updated
2025-08-21
Model context
131K
Model output limit
8K
Open weights
Yes
File attachments
No
Reasoning
Yes
Tool calling
Yes
Temperature control
Yes

Downloadable weights

Complete source record (JSON)
{
  "id": "deepseek/deepseek-v3.1",
  "name": "DeepSeek-V3.1",
  "description": "Hybrid-reasoning DeepSeek model with thinking and non-thinking modes",
  "family": "deepseek",
  "last_updated": "2025-08-21",
  "attachment": false,
  "reasoning": true,
  "tool_call": true,
  "temperature": true,
  "modalities": {
    "input": [
      "text"
    ],
    "output": [
      "text"
    ]
  },
  "limit": {
    "context": 131072,
    "output": 8192
  },
  "release_date": "2025-08-21",
  "open_weights": true,
  "license": "MIT License",
  "weights": [
    {
      "label": "Hugging Face",
      "url": "https://huggingface.co/deepseek-ai/DeepSeek-V3.1"
    }
  ]
}

Infrastructure

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