# DeepSeek R1: AI model fact sheet

- **Provider:** deepseek
- **Released:** 2025-02-01
- **Context window:** 128,000 tokens
- **Parameters:** 671B total (37B active MoE)
- **API pricing:** $0.55 / 1M input, $2.19 / 1M output
- **OpenRouter ID:** deepseek/deepseek-r1
- **Capabilities:** conversation, reasoning, code-generation, analysis

DeepSeek R1 is a reasoning model developed entirely via reinforcement learning, offering cost efficiency at $0.14/million tokens vs. OpenAI o1's $15, with strong code generation and analysis capabilities.

## Benchmarks

| Benchmark | Score |
| --- | --- |
| MMLU | 83.4% |
| MATH | 72.6% |
| SWE-bench Verified | 49.2% |
| LiveCodeBench | 63.5% |

Source: real side-by-side outputs, pricing and specs at https://rival.tips/models/deepseek-r1