R1 0528
deepseek/deepseek-r1-0528
DeepSeek: R1 0528 is a text‑only model from DeepSeek released on 2025‑01‑20. It supports a context length of 163 840 tokens, tool usage, reasoning, and has open weights. Pricing is $0.5 per million input tokens and $2.15 per million output tokens.
- tool use
- structured outputs
- reasoning
- open-weight
At a glance
providerdeepseek
releasedJan 20, 2025
context164K
input / M$0.50
Specifications
What the API gives you
- Context window
- 164K tokens
- Max output
- 33K tokens
- Input price
- $0.50 / 1M tokens
- Output price
- $2.15 / 1M tokens
- Cache read
- $0.35 / 1M tokens
- Modalities
- text → text
- Knowledge cutoff
- Mar 31, 2025
- Released
- Jan 20, 2025
Recommendation coverage
Where this model appears
Not currently included in a published recommendation. This means the available task-specific evidence did not support a ranking yet—not that the model was reviewed and rejected.
Measured evidence
Public benchmark record
- Aider Polyglot
- 71.4%2026-07-17
- Aider Polyglot
- 71.4%2026-07-21
- LMArena Text
- 1428 Elo2026-07-16
LMArena data licensed CC-BY-4.0. Aider (Apache-2.0) and SWE-bench (MIT) are open.
Open-weight model on Hugging Face.
Catalog data via OpenRouter and models.dev. Last checked within the past 6 hours.