DeepSeek V3.1 Terminus pricing & benchmarks
Released Sep 22, 2025 · served by 5 providers · ranked #53 by intelligence in our index
What DeepSeek V3.1 Terminus is
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...
- Model ID:
deepseek/deepseek-v3.1-terminus - Modality: text->text
- Knowledge cutoff: 2025-03-31
- Tool calling: supported · Structured output: supported
- Weights:
deepseek-ai/DeepSeek-V3.1-Terminuson Hugging Face
Providers and prices for DeepSeek V3.1 Terminus
The same model costs different amounts depending on who serves it. Prices are per 1M tokens, cheapest first. Uptime and throughput are OpenRouter's rolling measurements, not vendor claims.
| Provider | Input | Output | Context | Quant | Uptime 24h | Throughput |
|---|---|---|---|---|---|---|
| DeepInfracheapest | $0.270 | $0.950 | 164K | fp4 | 99.5% | — |
| AtlasCloud | $0.300 | $0.950 | 131K | fp8 | 95.6% | — |
| SiliconFlow | $0.270 | $1.00 | 164K | fp8 | 89.2% | — |
| Novita | $0.270 | $1.00 | 131K | fp8 | 100.0% | — |
| StreamLake | $0.343 | $1.03 | 128K | — | 88.8% | — |
DeepSeek V3.1 Terminus benchmark results
Design Arena head-to-head results, as reported through the OpenRouter model API.
| Category | Arena | Rank | Elo | Win rate |
|---|---|---|---|---|
| uicomponent | models | #41 | 1218 | 59.3% |
| 3d | models | #45 | 1198 | 56% |
| codecategories | models | #45 | 1206 | 56% |
| website | models | #46 | 1212 | 56.4% |
| dataviz | models | #52 | 1193 | 53% |
| svg | models | #52 | 1115 | 50.1% |
| gamedev | models | #58 | 1187 | 52.5% |
Cheaper models in the same class
Models scoring within 4 points of DeepSeek V3.1 Terminus on the Intelligence Index, but with a lower output price.
FAQ
How much does the DeepSeek V3.1 Terminus API cost?
$0.270 per 1M input tokens and $0.950 per 1M output tokens. A typical workload of 1M input + 300K output tokens costs about $0.56.
Is DeepSeek V3.1 Terminus free?
No. It is a paid model starting at $0.270 per 1M input tokens, though some providers offer trial credits.
Which provider is cheapest for DeepSeek V3.1 Terminus?
DeepInfra at $0.270 input / $0.950 output per 1M tokens (fp4 quantization).
Can I self-host DeepSeek V3.1 Terminus?
Yes — weights are published as deepseek-ai/DeepSeek-V3.1-Terminus on Hugging Face, so you can run it on your own hardware.