DeepSeek V3.1 Terminus
DeepSeek V3.1 Terminus is an AI model from DeepSeek, released with open weights.
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Context
164K
Weights
Open
downloadable
Input
$0.27
/1M tok
Output
$1
/1M tok
Cache read
$0.14
0.50x input
Price & speed via Artificial Analysis · ranked across tracked models · caching via OpenRouter
| Reasoning effort | Index | Price | Speed |
|---|---|---|---|
| Reasoning | 14.8 | $1.91 | 0 t/s |
| Non-reasoning | 13.9 | $0.45 | 0 t/s |
Intelligence Index per reasoning-effort setting, via Artificial Analysis
Reported on 11 evals across 7 domains - best 89.7% on AIME 2025: Problems from the American Invitational Mathematics Examination · #24 of 205