What the evidence says
These facts come from the reviewed Epoch AI catalog artifact and its linked primary record. They describe the model. They do not rank it.
- Developer [1]
- DeepSeek
- Released [1]
- May 28, 2025
- Domains [1]
- Language
- Tasks [1]
- Language modeling/generation · Code generation · Quantitative reasoning · Question answering
- Access [1]
- Open weights (unrestricted)
- Weights [1]
- Open
Where it may fit
These are evidence-bounded screening suggestions, not performance claims or purchase recommendations.
Self-hosted reasoning experiments
Consider it when quantitative-reasoning work needs inspectable, deployable weights without access restrictions.
Evidence fields: tasks, access, openWeights [1]
Open-weight code-generation research
Consider it for code-generation research where the team controls hosting and wants unrestricted weights.
Evidence fields: tasks, openWeights [1]
Limitations
The record does not provide benchmark results, hardware requirements, serving cost, context window, latency, or safety evaluations, and no exact-match Arena rating exists for it. Deployment fitness requires independent testing.
Current standing
According to the LMArena snapshot published July 12, 2026, no exact match for this catalog record appears in the style-controlled text category, so this page reports no current rating for DeepSeek-R1 (May 2025).