DeepSeek
DeepSeek V3.1 Terminus (Reasoning)
DeepSeek-V3.1-Terminus delivers more stable & reliable outputs across benchmarks compared to the previous version and addresses user feedback (i.e. language consistency and agent upgrades).
DeepSeek release notesModel Snapshot
TypeLanguage
ReleaseSep 22, 2025
Context131,072
Tagsimplicit-caching, reasoning, tool-use
Overall
Rank #154 across 600
30.4
Coding
Rank #126 across 266
43.5
Blended Price
Rank #239 across 379
$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.
Model Details
Runtime
Max Output32,768
Streaming speed is not measured for this model yet.
Pricing
Blended$1.91/M
Input$1.64/M
Output$2.75/M
Catalog$0.270/M in / $1.00/M out
Metadata
Modalities
All Benchmarks
| Metric | Domain | Value | Rank |
|---|---|---|---|
| Artificial Analysis Intelligence Index | overall | 30.4 | #154 |
| Artificial Analysis Coding Index | coding | 43.5 | #126 |
| Artificial Analysis Math Index | math | 89.7 | #27 |
| MMLU-Pro | reasoning | 85.1% | #30 |