SFAI / MODEL PROFILE
DeepSeek: DeepSeek V3.1 (deepseek/deepseek-chat-v3.1)
DeepSeek-V3.1 is a large hybrid reasoning model (671B parameters, 37B active) that supports both thinking and non-thinking modes via prompt templates. It extends the DeepSeek-V3 base with a two-phase long-context...
- Developer
- deepseek
- Input modalities
- text
- Output modalities
- text
- Context tokens
- 163,840
- Latest price observation
- 2026-09-27
- Lowest paired standard token quote
- $0.25 input / $0.95 output per 1M tokens
Dated price and provider records
| Provider and channel | Input | Output or native rate | Unit and status | Source and observation |
|---|---|---|---|---|
| Automatic routingopenrouter | $0.25 | $0.95 | 1M tokenspriced · USD | openrouter2026-09-27 |
These are dated, non-executable observations. Verify the exact endpoint, price and terms with the source before use. Unknown values are not free.