MiscSubjects

DeepSeek: 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.

DeepSeekDeepSeek V3.1
deepseek/deepseek-chat-v3.1
2025-08-21text->textknows up to 2025-03-31
Design Arena
963 Elo · #95
svg · 38.2% wins
Input
$0.25
per 1M tokens
Output
$0.95
per 1M tokens
Cached input
$0.13
per 1M tokens
Context
164K
tokens it reads
Max output
147K
tokens it writes
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...
inspect — the catalog entry
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  "name": "DeepSeek: DeepSeek V3.1",
  "created": 1755779628,
  "description": "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...",
  "context_length": 163840,
  "architecture": {
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    ],
    "output_modalities": [
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    "tokenizer": "DeepSeek",
    "instruct_type": "deepseek-v3.1"
  },
  "pricing": {
    "prompt": "0.00000025",
    "completion": "0.00000095",
    "input_cache_read": "0.00000013"
  },
  "top_provider": {
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  "supported_parameters": [
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    "logit_bias",
    "logprobs",
    "max_tokens",
    "min_p",
    "presence_penalty",
    "reasoning",
    "repetition_penalty",
    "response_format",
    "seed",
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    "structured_outputs",
    "temperature",
    "tool_choice",
    "tools",
    "top_k",
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    "top_p"
  ],
  "default_parameters": {},
  "supported_voices": null,
  "knowledge_cutoff": "2025-03-31",
  "expiration_date": null,
  "links": {
    "details": "/api/v1/models/deepseek/deepseek-chat-v3.1/endpoints"
  },
  "endpoints": [
    "/api/v1/chat/completions",
    "/api/v1/completions",
    "/api/v1/messages",
    "/api/v1/responses"
  ],
  "benchmarks": {
    "design_arena": [
      {
        "arena": "models",
        "category": "3d",
        "elo": 1074,
        "win_rate": 47.9,
        "rank": 101
      },
      {
        "arena": "models",
        "category": "codecategories",
        "elo": 1110,
        "win_rate": 47.8,
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      },
      {
        "arena": "models",
        "category": "dataviz",
        "elo": 1096,
        "win_rate": 46.2,
        "rank": 103
      },
      {
        "arena": "models",
        "category": "gamedev",
        "elo": 1084,
        "win_rate": 47.1,
        "rank": 104
      },
      {
        "arena": "models",
        "category": "svg",
        "elo": 963,
        "win_rate": 38.2,
        "rank": 95
      },
      {
        "arena": "models",
        "category": "uicomponent",
        "elo": 1080,
        "win_rate": 47.1,
        "rank": 104
      },
      {
        "arena": "models",
        "category": "website",
        "elo": 1122,
        "win_rate": 48,
        "rank": 104
      }
    ]
  },
  "reasoning": {
    "mandatory": false
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}
openrouter.ai/deepseek/deepseek-chat-v3.1
References (1)
  1. Stored model catalog — Nov 5, 2026
Via
OpenRouter
Id
openrouter/deepseek/deepseek-chat-v3.1
Model id
deepseek/deepseek-chat-v3.1
Name
DeepSeek: DeepSeek V3.1
Description
DeepSeek-V3.1 is a large hybrid reasoning model (671B parameters, 37B active) that supports both thinking and non-thinking modes via prompt templates.
Family
deepseek
Canonical slug
deepseek/deepseek-chat-v3.1
Price in
0.25
Price out
0.95
Price cache read
0.13
Price cache write
null
Price cache write 1h
null
Price web search
null
Price overrides
[]
Context
163840
Max completion tokens
147456
Modality
text->text
Input modalities
["text"]
Output modalities
["text"]
Tokenizer
DeepSeek
Knowledge cutoff
2025-03-31
Created
1755779628
Moderated
false
Params
["frequency_penalty","include_reasoning","logit_bias","logprobs","max_tokens","min_p","presence_penalty","reasoning","repetition_penalty","response_format","seed","stop","structured_outputs","temperature","tool_choice","tools","top_k","top_logprobs","top_p"]
Default parameters
{}
Tools
true
Reasoning
true
Reasoning efforts
null
Reasoning default effort
null
Reasoning mandatory
false
Reasoning default enabled
null
Vision
false
Expiration date
null

Connected subjects

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Page dataOpen JSON
page.json
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