DeepSeek V3.1 Terminus: API pricing, providers and specs
DeepSeek V3.1 Terminus is a text model by DeepSeek. 6 providers serve it, from $0.95 to $1.67 /1M; the lowest price is at Hugging Face.
How DeepSeek V3.1 Terminus compares
Against the 737 text models on the site priced the same way.
- Mid-priced: its lowest price is $0.95 /1M against a median of $1.10; 48% of comparable models cost less.
- Its 164K-token context window is larger than 30% of them (median 262K), about 250 pages of text.
- On LMArena's Text board it ranks #27 of the 120 comparable models scored there.
- 6 providers serve it; 69% of comparable models have fewer.
- Its weights are open under the MIT license: commercial use allowed.
DeepSeek V3.1 Terminus prices by provider
Every provider's list price, read from its own price page or API. A price marked “from” changes with context length, resolution or mode.
| Provider | Input | Output | Prompt caching | Context |
|---|---|---|---|---|
 Hugging Face | $0.27/1M | From$0.95/1M | — | — |
 Helicone | $0.27/1M | From$1/1M | $0.216/1M | — |
 SiliconFlow | $0.27/1M | $1/1M | — | — |
| OpenRouter | $0.27/1M | From$1/1M | — | 164K |
 Prime Inference | $0.27/1M | $1/1M | — | — |
| SiliconFlow | $0.556/1M | $1.67/1M | — | — |
- Hugging FaceFrom$0.95
- SiliconFlow$1
- Prime Inference$1
- HeliconeFrom$1
- OpenRouterFrom$1
- SiliconFlow$1.67
Specs
- Type
- Text
- Maker
- DeepSeek
- Inputs
- Text
- Outputs
- Text
- Context
- 164K≈ 250 pages of text
- Max output
- 147K
- Capabilities
- JSON, Reasoning, Tool calling
- Released
- Sep 22, 2025
- License
- MITcommercial use allowed
- Open weights
- Yes, downloadable
- Parameters
- 685B
- Arena score
- 1419Text
Alternatives to DeepSeek V3.1 Terminus
Same kind of model from other makers, at a similar price.
| Model | Lowest price | Context | Arena | Providers |
|---|---|---|---|---|
| DeepSeek V3.1 Terminusthis model | $0.95/1M | 164K | 1419 | 6 |
 GLM-5.3 | $1.10/1M | 1.05M | 1623 | 49 |
 Gemini 3 Flash | $2.40/1M | 1.05M | 1466 | 5 |
 Mistral Large 4 | $2.09/1M | 1.05M | 1543 | 13 |
 Qwen3.8 27B | $0.50/1M | 262K | 1591 | 33 |
| GPT-6 Luna | $0.40/1M | 1.05M | 1578 | 28 |
 Sonar | $1/1M | 127K | — | 9 |
| GLM-5.2 | $1.80/1M | 1M | 1604 | 44 |
| Grok Build 0.1 | $1.60/1M | 256K | — | 18 |
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The lowest price for DeepSeek V3.1 Terminus is $0.95 /1M, at Hugging Face.
Hugging Face, at $0.95 /1M. 6 providers serve DeepSeek V3.1 Terminus; the table above lists every one with its price.
DeepSeek V3.1 Terminus reads up to 164K tokens per request and writes up to 147K.
Yes. DeepSeek V3.1 Terminus's weights can be downloaded from its maker's Hugging Face page, under the MIT license.
About 685B, as the safetensors metadata of its official Hugging Face repo states.
6 API providers serve DeepSeek V3.1 Terminus. Compare their prices above, or open a provider to see everything it offers.
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