DeepSeek V3.1 Terminus
deepseek/deepseek-v3.1-terminus- DeepSeek
- Family · DeepSeek V3 Terminus
- Released 22 Sep 2025
- Open weights
- Text → Text
- Tools · JSON
Not on OSMEXO yet
Spec & list price
Context160K
Max output144K
Input / 1M$0.27
Output / 1M$1.003.7× input
Scores · standing
Intelligence14.8#177/490
Coding43.5#83/196
Usage
Tokens / day673.7M▼ 8.5% 7d
Usage rank#217
Requests / day94.8K
Tool calls / req0.03
Per request · 30 days
Avg input7.3K0.5× median
Avg output3160.5× median
Cache hit63%0.9× median
Reasoning share5.2%0.1× median
Tool-call failures3.8%2.0× median
Consumption
Peak 1.2B 29 SepLow 581.6M 31 OctRank today #217
News & trends
News · latest from DeepSeek
- Tell HN: Mistrap Pro includes DeepSeek v4.1 Flash 1017docs.mistral.ai · 1 Nov
- Show HN: DeepSeek v4.1 Flash-1017 Safety Evaluationtwitter.com · 26 Oct
- DeepSeek V4 Pro 0813 vs Claude Fable 5 on DeepSWE: Cost, Coding, and RoutingTogether AI · 17 Aug
- DeepSeek-V4 Flash 0731 vs GPT-5.6 Luna on DeepSWE: Cost and CodingTogether AI · 6 Aug
Benchmarks
bar = share of the top score · Benchmark data: Artificial AnalysisSpeed · median across providers, latest day
Output speed#315/33420 tok/s3.2× slower than median
First token#2351.84 s1.7× longer than median
#9 cheapest of 24 with a similar score
Value
Intelligence Index
Blended price per 1M tokens (log)
Technical details
- Tokenizer
- DeepSeek
- Knowledge cutoff
- 2025-03-31
- License
- MIT
- Parameters
- 685B
- Moderation
- none
- Downloads · likes
- 12.0K · 386
Request parameters 11
- tools
- tool_choice
- response_format
- structured_outputs
- reasoning
- include_reasoning
- temperature
- top_p
- top_k
- max_tokens
+1 more
- frequency_penalty
When to use
Best for
- Coding agents with tool calling
- Math and knowledge-heavy tasks
- Long document reasoning
- Self-hosted general models (open weights)
- Large generated outputs
Think twice for
- Image understanding
- Multi-hour autonomous agent runs
- Image or audio generation
Research papers
Alternatives
other vendors · similar capability- 11.6
- 13.1
- S19.5
- 15.6
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