DeepSeek
DeepSeek V3.1 Terminus (Reasoning)
DeepSeek V3.1 Terminus (Reasoning) is a DeepSeek model profile, from a family known for strong reasoning, coding, and cost-conscious API models such as R1 and V-series releases. This page separates the public release context from measured benchmark performance so you can inspect its quality and efficiency directly.
DeepSeek release notesOperational Metrics
Output Speedn/a
First Tokenn/a
Blended Price$1.91/M
Model Metadata
Queryable facts extracted from the upstream model payload.
ReleaseSep 22, 2025
Context Windown/a
Modalitiesn/a
Strength: LCB
Rank #29 across 343 models.
79.8%
Strength: MMLU-Pro
Rank #31 across 345 models.
85.1%
Strength: Math
Rank #27 across 269 models.
89.7
Watch Area: Input $
Rank #252 across 325 models.
$1.64/M
Watch Area: Blended $
Rank #218 across 325 models.
$1.91/M
Strength Profile
Percentile score by analysis domain.
* Cost is inverted: lower input, output, and blended prices rank higher.
Benchmark Percentiles
Higher bars mean stronger relative placement.
All Benchmarks
| Metric | Domain | Value | Rank |
|---|---|---|---|
| Artificial Analysis Intelligence Index | overall | 33.9 | #112 |
| Artificial Analysis Coding Index | coding | 33.7 | #91 |
| Artificial Analysis Math Index | math | 89.7 | #27 |
| MMLU-Pro | reasoning | 85.1% | #31 |