DeepSeek
DeepSeek V3.1 Terminus
DeepSeek chat model for instruction following, coding, and analysis
Model facts
- Context window
- 128K tokens
- Maximum output
- 33K tokens
- Cheapest paid input
- $0.25 per 1M tokens
- Cheapest paid output
- $0.7 per 1M tokens
- Open weights
- yes
- Providers
- 8
Capabilities and modalities
reasoning, tool calling, structured output, temperature control, open weights, text.
Artificial Analysis benchmarks
Compare this model on the full LLM benchmark leaderboard.
| Configuration | AAI | Coding | Math | Output tokens/s |
|---|---|---|---|---|
| Reasoning | 31.4 | 43.5 | 89.7 | not measured |
| Non-reasoning | 21.7 | not measured | 53.7 | not measured |
Observed price history
- 2026-08-24: $0.25 input / $0.7 output per 1M tokens
API providers
- NanoGPT — model id deepseek-ai/DeepSeek-V3.1-Terminus; $0.25 input / $0.7 output per 1M tokens; provider documentation
- Abacus — model id deepseek-ai/DeepSeek-V3.1-Terminus; $0.27 input / $1 output per 1M tokens; provider documentation
- Helicone — model id deepseek-v3.1-terminus; $0.27 input / $1 output per 1M tokens; provider documentation
- Kilo Gateway (DeepSeek) — model id deepseek/deepseek-v3.1-terminus; $0.27 input / $1 output per 1M tokens; provider documentation
- NovitaAI — model id deepseek/deepseek-v3.1-terminus; $0.27 input / $1 output per 1M tokens; provider documentation
- OpenRouter — model id deepseek/deepseek-v3.1-terminus; $0.27 input / $1 output per 1M tokens; provider documentation
- Vercel AI Gateway — model id deepseek/deepseek-v3.1-terminus; $0.27 input / $1 output per 1M tokens; provider documentation
- Qiniu — model id deepseek/deepseek-v3.1-terminus; not published input / not published output per 1M tokens; provider documentation