# DeepSeek V3.1: AI model fact sheet

- **Provider:** deepseek
- **Released:** 2025-08-21
- **Context window:** 163,840 tokens
- **API pricing:** $0.20 / 1M input, $0.80 / 1M output
- **OpenRouter ID:** deepseek/deepseek-chat-v3.1
- **Capabilities:** conversation, reasoning, code-generation, analysis, agentic-tool-use, function-calling, tool-use

DeepSeek V3.1 model integrated via automation on 2025-08-21

## Benchmarks

| Benchmark | Score |
| --- | --- |
| SWE-bench Verified | 66.0% |
| LiveCodeBench | 56.4% |

Source: real side-by-side outputs, pricing and specs at https://rival.tips/models/deepseek-chat-v3.1