DeepSeek V3.1 API — pricing & specs
DeepSeek V3.1 is DeepSeek's text-only large language model for reasoning, coding, and general-purpose tasks. As an earlier pinned release in the DeepSeek V3 line, it offers a stable version for reproducible deployments that need consistent behavior over time. On KeepRouter, DeepSeek V3.1 costs $0.21 per 1M input tokens and $0.79 per 1M output tokens, billed at cost with no markup and no monthly fee. Call it through the OpenAI- or Anthropic-compatible API with the model id deepseek-v3.1.
| Maker | DeepSeek |
|---|---|
| Modality | Text |
| Pricing | $0.21 per 1M input tokens and $0.79 per 1M output tokens |
Frequently asked questions
How much does DeepSeek V3.1 cost on KeepRouter?
DeepSeek V3.1 is $0.21 per 1M input tokens and $0.79 per 1M output tokens, billed at cost with no markup and no monthly fee.
Who makes DeepSeek V3.1?
DeepSeek V3.1 is made by DeepSeek. KeepRouter provides it through one OpenAI- and Anthropic-compatible API.
How do I call DeepSeek V3.1 via API?
Point your OpenAI- or Anthropic-compatible client at KeepRouter and set the model to "deepseek-v3.1". No provider-specific SDK needed.