MiscSubjects

DeepSeek: DeepSeek V4 Flash 0731

DeepSeek V4 Flash 0731 is a sparse mixture-of-experts model from DeepSeek, with 13B active parameters out of 284B total.

DeepSeekDeepSeek V4 Flash 0731
deepseek/deepseek-v4-flash-0731
2026-07-31text->textreasoning: max / high / low / none
Coding index
69.1
Artificial Analysis
Agentic index
41
Artificial Analysis
Design Arena
1180 Elo · #37
svg · 45.1% wins
Input
$0.04
per 1M tokens
Output
$0.30
per 1M tokens
Cached input
$0.04
per 1M tokens
Context
1.0M
tokens it reads
Max output
944K
tokens it writes
DeepSeek V4 Flash 0731 is a sparse mixture-of-experts model from DeepSeek, with 13B active parameters out of 284B total. This re-post-trained revision is suited for coding, reasoning, and agent workflows....
inspect — the catalog entry
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  "id": "deepseek/deepseek-v4-flash-0731",
  "canonical_slug": "deepseek/deepseek-v4-flash-20260731",
  "hugging_face_id": "deepseek-ai/DeepSeek-V4-Flash-0731",
  "name": "DeepSeek: DeepSeek V4 Flash 0731",
  "created": 1785478908,
  "description": "DeepSeek V4 Flash 0731 is a sparse mixture-of-experts model from DeepSeek, with 13B active parameters out of 284B total. This re-post-trained revision is suited for coding, reasoning, and agent workflows....",
  "context_length": 1048576,
  "architecture": {
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    "input_modalities": [
      "text"
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    "output_modalities": [
      "text"
    ],
    "tokenizer": "DeepSeek",
    "instruct_type": null
  },
  "pricing": {
    "prompt": "0.0000000434",
    "completion": "0.0000003",
    "input_cache_read": "0.000000035"
  },
  "top_provider": {
    "context_length": 1048576,
    "max_completion_tokens": 943718,
    "is_moderated": false
  },
  "per_request_limits": null,
  "supported_parameters": [
    "frequency_penalty",
    "include_reasoning",
    "logit_bias",
    "logprobs",
    "max_tokens",
    "min_p",
    "parallel_tool_calls",
    "presence_penalty",
    "reasoning",
    "reasoning_effort",
    "repetition_penalty",
    "response_format",
    "seed",
    "stop",
    "structured_outputs",
    "temperature",
    "tool_choice",
    "tools",
    "top_a",
    "top_k",
    "top_logprobs",
    "top_p"
  ],
  "default_parameters": {},
  "supported_voices": [],
  "knowledge_cutoff": null,
  "expiration_date": null,
  "links": {
    "details": "/api/v1/models/deepseek/deepseek-v4-flash-20260731/endpoints"
  },
  "endpoints": [
    "/api/v1/chat/completions",
    "/api/v1/completions",
    "/api/v1/messages",
    "/api/v1/responses"
  ],
  "benchmarks": {
    "design_arena": [
      {
        "arena": "models",
        "category": "3d",
        "elo": 1205,
        "win_rate": 48.7,
        "rank": 47
      },
      {
        "arena": "models",
        "category": "asciiart",
        "elo": 1088,
        "win_rate": 33.3,
        "rank": 67
      },
      {
        "arena": "models",
        "category": "codecategories",
        "elo": 1228,
        "win_rate": 46.4,
        "rank": 53
      },
      {
        "arena": "models",
        "category": "dataviz",
        "elo": 1180,
        "win_rate": 41.1,
        "rank": 66
      },
      {
        "arena": "models",
        "category": "gamedev",
        "elo": 1207,
        "win_rate": 44.6,
        "rank": 53
      },
      {
        "arena": "models",
        "category": "svg",
        "elo": 1180,
        "win_rate": 45.1,
        "rank": 37
      },
      {
        "arena": "models",
        "category": "uicomponent",
        "elo": 1230,
        "win_rate": 46.8,
        "rank": 50
      },
      {
        "arena": "models",
        "category": "website",
        "elo": 1236,
        "win_rate": 46.7,
        "rank": 51
      }
    ],
    "artificial_analysis": {
      "intelligence_index": null,
      "coding_index": 69.1,
      "agentic_index": 41
    }
  },
  "reasoning": {
    "mandatory": false,
    "default_enabled": true,
    "supported_efforts": [
      "max",
      "high",
      "low",
      "none"
    ],
    "default_effort": "high"
  }
}
References (1)
  1. Stored model catalog — Nov 5, 2026
Via
OpenRouter
Id
openrouter/deepseek/deepseek-v4-flash-0731
Model id
deepseek/deepseek-v4-flash-0731
Name
DeepSeek: DeepSeek V4 Flash 0731
Description
DeepSeek V4 Flash 0731 is a sparse mixture-of-experts model from DeepSeek, with 13B active parameters out of 284B total.
Family
deepseek
Canonical slug
deepseek/deepseek-v4-flash-20260731
Price in
0.059
Price out
0.3
Price cache read
0.035
Price cache write
null
Price cache write 1h
null
Price web search
null
Price overrides
[]
Context
1048576
Max completion tokens
943718
Modality
text->text
Input modalities
["text"]
Output modalities
["text"]
Tokenizer
DeepSeek
Knowledge cutoff
null
Created
1785478908
Moderated
false
Params
["frequency_penalty","include_reasoning","logit_bias","logprobs","max_tokens","min_p","parallel_tool_calls","presence_penalty","reasoning","reasoning_effort","repetition_penalty","response_format","seed","stop","structured_outputs","temperature","tool_choice","tools","top_a","top_k","top_logprobs","top_p"]
Default parameters
{}
Tools
true
Reasoning
true
Reasoning efforts
["max","high","low","none"]
Reasoning default effort
high
Reasoning mandatory
false
Reasoning default enabled
true
Vision
false
Expiration date
null
Page dataOpen JSON
page.json
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  "kind": "AIModel",
  "title": "DeepSeek: DeepSeek V4 Flash 0731",
  "layout": "item",
  "status": "published",
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  "body": [
    {
      "type": "model",
      "id": "deepseek/deepseek-v4-flash-0731"
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  ],
  "hero": "",
  "facts": {
    "via": "OpenRouter",
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    "price_out": 0.3,
    "price_cache_read": 0.035,
    "price_cache_write": null,
    "price_cache_write_1h": null,
    "price_web_search": null,
    "price_overrides": [],
    "context": 1048576,
    "max_completion_tokens": 943718,
    "modality": "text->text",
    "input_modalities": [
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    "knowledge_cutoff": null,
    "created": 1785478908,
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    "reasoning_efforts": [
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    "reasoning_mandatory": false,
    "reasoning_default_enabled": true,
    "vision": false,
    "expiration_date": null
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  "sources": [
    {
      "title": "Stored model catalog",
      "url": "https://openrouter.ai/api/v1/models",
      "date": "2026-11-05T12:17:05.384Z"
    }
  ],
  "widgets": [],
  "members": [],
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      "rel": "published by"
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  "media": [],
  "tags": [],
  "query": {},
  "created": "2026-11-05T12:17:05.384Z",
  "updated": "2026-11-05T12:17:05.384Z",
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