DeepSeek V3.1 Terminus API pricing
As of October 22, 2026, DeepSeek V3.1 Terminus costs $0.3063 per million input tokens and $1.0142 per million output tokens, the median of 2 providers on OpenRouter.
DeepSeek V3.1 Terminus benchmarks and specs · Every DeepSeek model's price
- Input, per million tokens$0.3063
- Output, per million tokens$1.0142
- Cached input, per millionNo cache price listed
- Context window164K tokens
- Max output147K tokens
- Output speedNot measured
What a request costs
Three fixed token mixes at the list price, without cache or batch discounts. For a whole month, use the calculator.
| Workload | Tokens | One request | 1,000 requests | Fits the context window |
|---|---|---|---|---|
| Chat turn | 1K input + 500 output tokens | $0.0008 | $0.813 | Yes |
| Repository review | 50K input + 3K output tokens | $0.018 | $18.36 | Yes |
| Agent loop | 200K input + 10K output tokens | $0.071 | $71.40 | No, it would need splitting |
| Solved coding task | One SWE-bench Verified attempt, divided by the share that succeed | Not computable | Not computable |
Price history
The price of DeepSeek V3.1 Terminus here is the median across 2 providers on OpenRouter, so we do not track price changes for it.
Cheaper models as good as DeepSeek V3.1 Terminus
DeepSeek V3.1 Terminus has no overall or coding score, so we make no quality claim against it.
DeepSeek V3.1 Terminus pricing questions
- How much does DeepSeek V3.1 Terminus cost per million tokens?
- $0.3063 per million input tokens and $1.0142 per million output tokens, as listed on OpenRouter on October 22, 2026.
- Does DeepSeek V3.1 Terminus support prompt caching?
- OpenRouter lists no cached input price for this model, so assume every input token is billed at the full rate.
- Has the price of DeepSeek V3.1 Terminus changed?
- The price of DeepSeek V3.1 Terminus here is the median across 2 providers on OpenRouter, so we do not track price changes for it.