DeepSeek V3.1 Terminus pricing
DeepSeek-V3.1 Terminus is an update to DeepSeek V3.1 that maintains the model's original capabilities while addressing issues reported by users, including language consistency and agent capabilities, further optimizing the… DeepSeek V3.1 Terminus from DeepSeek costs $0.270 per 1M input tokens and $1.00 per 1M output tokens. Cached input is $0.135 per 1M. Context window 163,840 tokens.
API id deepseek-v3.1-terminus · DeepSeek · source · updated 2026-09-25 · general-purpose
DeepSeek V3.1 Terminus specifications
- Provider
- DeepSeek
- API id
deepseek-v3.1-terminus- Model type
- general-purpose
- Context window
- 164K tokens
- Max output
- 33K tokens
- Currency
- USD
- Price source
- Provider API
- Last checked
- 2026-09-25
DeepSeek V3.1 Terminus across providers
The same model, priced by every seller we track. Ranked by the cost of 1M input + 1M output tokens, standard tier; savings measured against buying from the vendor directly.
| Provider | Input /1M | Cached /1M | Output /1M | 1M in + 1M out | vs vendor |
|---|---|---|---|---|---|
| $0.270 | $0.135 | $1.00 | $1.27 | — | |
OpenRouterHost | $0.270 | $0.135 | $1.00 | $1.27 | — |
What DeepSeek V3.1 Terminus costs in practice
| Workload | Input tokens | Output tokens | Estimated cost |
|---|---|---|---|
| Short chat turn | 1,000 | 500 | $0.0008 |
| Document summary | 50,000 | 2,000 | $0.02 |
| 1M tokens in, 200K out | 1,000,000 | 200,000 | $0.47 |
Estimates use the standard tier and ignore caching discounts, so real bills with repeated prompt prefixes are typically lower.
DeepSeek V3.1 Terminus price history
| Recorded | Input /1M | Output /1M |
|---|---|---|
| 2026-08-21 | $0.270 | $1.00 |
| 2026-08-18 | $0.270 | $1.00 |
| 2026-08-12 | $0.270 | $0.950 |
| 2026-08-11 | $0.270 | $1.00 |
Common questions
- How much does DeepSeek V3.1 Terminus cost per 1M tokens?
- DeepSeek V3.1 Terminus costs $0.270 per 1M input tokens and $1.00 per 1M output tokens on the standard tier. Cached input is $0.135 per 1M.
- What is DeepSeek V3.1 Terminus's context window?
- DeepSeek V3.1 Terminus accepts up to 163,840 tokens in a single request, and can return up to 32,768 output tokens.
- Is there a cheaper DeepSeek model than DeepSeek V3.1 Terminus?
- Yes. DeepSeek V3 0324 is $0.250 per 1M input tokens versus $0.270 for DeepSeek V3.1 Terminus, with a 163,840 token context window.
- Where does this DeepSeek V3.1 Terminus price come from?
- From the OpenRouter catalogue, because DeepSeek does not publish machine-readable pricing. OpenRouter is a reseller, so its rate can differ from DeepSeek's own — verify before committing spend.
Head-to-head comparisons
Other DeepSeek models
- DeepSeek Pro Latest $0.260
- DeepSeek Flash Latest $0.040
- DeepSeek V4.1 Flash $0.300
- DeepSeek V4 Flash Vision Exp $0.220
- DeepSeek V4 Pro 0813 $0.462
- DeepSeek V4 Flash Latest $0.030
- DeepSeek V4 Flash 0731 $0.030
- DeepSeek V4 Pro 0423 $0.789
- DeepSeek V4 Flash 0423 $0.049
- DeepSeek V3.2 $0.269
- DeepSeek V3.2 Exp $0.270
- DeepSeek V3.1 $0.250
- R1 0528 $0.500
- DeepSeek V3 0324 $0.250
- R1 Distill Llama 70B $0.800
- R1 $0.700