MiscSubjects

DeepSeek: DeepSeek V3.1 Terminus

DeepSeek-V3.1 Terminus is an update to [DeepSeek V3.1](/deepseek/deepseek-chat-v3.1) that maintains the model's original capabilities while addressing issues…

DeepSeekDeepSeek V3.1 Terminus
deepseek/deepseek-v3.1-terminus
2025-09-22text->textknows up to 2025-03-31
Coding index
43.5
Artificial Analysis
Agentic index
6.8
Artificial Analysis
Design Arena
1177 Elo · #67
uicomponent · 59.5% wins
Input
$0.27
per 1M tokens
Output
$1
per 1M tokens
Context
164K
tokens it reads
Max output
147K
tokens it writes
DeepSeek-V3.1 Terminus is an update to [DeepSeek V3.1](/deepseek/deepseek-chat-v3.1) that maintains the model's original capabilities while addressing issues reported by users, including language consistency and agent capabilities, further optimizing the model's...
inspect — the catalog entry
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  "created": 1758548275,
  "description": "DeepSeek-V3.1 Terminus is an update to [DeepSeek V3.1](/deepseek/deepseek-chat-v3.1) that maintains the model's original capabilities while addressing issues reported by users, including language consistency and agent capabilities, further optimizing the model's...",
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  },
  "supported_voices": null,
  "knowledge_cutoff": "2025-03-31",
  "expiration_date": null,
  "links": {
    "details": "/api/v1/models/deepseek/deepseek-v3.1-terminus/endpoints"
  },
  "endpoints": [
    "/api/v1/chat/completions",
    "/api/v1/completions",
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  "benchmarks": {
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      {
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        "category": "3d",
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      {
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      {
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        "category": "svg",
        "elo": 1061,
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      {
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        "category": "uicomponent",
        "elo": 1177,
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        "rank": 67
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      {
        "arena": "models",
        "category": "website",
        "elo": 1185,
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        "rank": 73
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      "intelligence_index": null,
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}
openrouter.ai/deepseek/deepseek-v3.1-terminus
References (1)
  1. Stored model catalog — Nov 5, 2026
Via
OpenRouter
Id
openrouter/deepseek/deepseek-v3.1-terminus
Model id
deepseek/deepseek-v3.1-terminus
Name
DeepSeek: DeepSeek V3.1 Terminus
Description
DeepSeek-V3.1 Terminus is an update to [DeepSeek V3.1](/deepseek/deepseek-chat-v3.1) that maintains the model's original capabilities while addressing issues…
Family
deepseek
Canonical slug
deepseek/deepseek-v3.1-terminus
Price in
0.27
Price out
1
Price cache read
null
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
1758548275
Moderated
false
Params
["frequency_penalty","include_reasoning","max_tokens","reasoning","response_format","structured_outputs","temperature","tool_choice","tools","top_k","top_p"]
Default parameters
{"temperature":null,"top_p":null,"frequency_penalty":null}
Tools
true
Reasoning
true
Reasoning efforts
null
Reasoning default effort
null
Reasoning mandatory
false
Reasoning default enabled
null
Vision
false
Expiration date
null

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Page dataOpen JSON
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