deepseek-ai/DeepSeek-V3.1 pricing
DeepSeek-V3.1 is post-trained on the top of DeepSeek-V3.1-Base, which is built upon the original V3 base checkpoint through a two-phase long context extension approach, following the methodology outlined in the original DeepSeek-V3 report. deepseek-ai/DeepSeek-V3.1 from DeepInfra costs $0.250 per 1M input tokens and $0.950 per 1M output tokens. Cached input is $0.130 per 1M. Context window 163,840 tokens.
API id deepseek-ai/DeepSeek-V3.1 · DeepInfra · source · updated 2026-09-25 · general-purpose
$0.250
Input / 1M tokens
$0.950
Output / 1M tokens
$0.130
Cached input / 1M
164K
Context window
deepseek-ai/DeepSeek-V3.1 specifications
- Provider
- DeepInfra
- API id
deepseek-ai/DeepSeek-V3.1- Model type
- general-purpose
- Context window
- 164K tokens
- Max output
- not published
- Currency
- USD
- Price source
- Provider API
- Last checked
- 2026-09-25
What deepseek-ai/DeepSeek-V3.1 costs in practice
| Workload | Input tokens | Output tokens | Estimated cost |
|---|---|---|---|
| Short chat turn | 1,000 | 500 | $0.0007 |
| Document summary | 50,000 | 2,000 | $0.01 |
| 1M tokens in, 200K out | 1,000,000 | 200,000 | $0.44 |
Estimates use the standard tier and ignore caching discounts, so real bills with repeated prompt prefixes are typically lower.
Common questions
- How much does deepseek-ai/DeepSeek-V3.1 cost per 1M tokens?
- deepseek-ai/DeepSeek-V3.1 costs $0.250 per 1M input tokens and $0.950 per 1M output tokens on the standard tier. Cached input is $0.130 per 1M.
- What is deepseek-ai/DeepSeek-V3.1's context window?
- deepseek-ai/DeepSeek-V3.1 accepts up to 163,840 tokens in a single request.
- Is there a cheaper DeepInfra model than deepseek-ai/DeepSeek-V3.1?
- Yes. deepseek-ai/DeepSeek-V4-Flash is $0.090 per 1M input tokens versus $0.250 for deepseek-ai/DeepSeek-V3.1, with a 1,048,576 token context window.
- Where does this deepseek-ai/DeepSeek-V3.1 price come from?
- From the OpenRouter catalogue, because DeepInfra does not publish machine-readable pricing. OpenRouter is a reseller, so its rate can differ from DeepInfra's own — verify before committing spend.
Head-to-head comparisons
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