What the evidence says
- Developer
- DeepSeek
- Released
- January 20, 2025
- Domains
- Language
- Tasks
- Language modeling/generation · Code generation · Quantitative reasoning · Question answering
- Access
- Open weights (unrestricted)
- Weights
- Open weights
Across the boards
Each row is one named authority's own current view. Nothing is combined.
- LMArena overall
- 1398.1 · rank #130 · 18,524 battles · published July 20, 2026 · board
- LMArena coding arena
- 1444.5 · rank #128 · board
- LMArena creative writing arena
- 1374.1 · rank #121 · board
- LMArena instruction following arena
- 1397.3 · rank #120 · board
- LMArena hard prompts arena
- 1418.5 · rank #128 · board
- LMArena multi-turn arena
- 1410.0 · rank #116 · board
- LMArena long queries arena
- 1398.8 · rank #140 · board
- LMArena math arena
- 1411.6 · rank #109 · board
- Aider polyglot
- 56.9% · rank #27 · system DeepSeek R1 (system result, not a bare-model score)
- EQ-Bench 3
- 1224.7 · rank #35
Benchmark results
Epoch AI Benchmarking Hub scores for this reviewed identity. Rows with a scaffold are system results, not bare-model results. Fraction-unit scores shown as percentages.
- Aider Polyglot
- 56.9% · diff
- GPQA Diamond
- 69.2%
- MATH Level 5
- 93.1%
- OTIS Mock AIME 2024-2025
- 53.3%
Platform facts
OpenRouter's platform listing, retrieved July 22, 2026. Routed platform prices, not first-party provider prices.
- Input price
- $0.70 per 1M tokens
- Output price
- $2.50 per 1M tokens
- Context length
- 163,840 tokens
- Listed on OpenRouter
- January 20, 2025
Common questions
What is DeepSeek-R1?
DeepSeek-R1 is a DeepSeek model released January 20, 2025, according to Epoch AI's reviewed catalog record. The record classifies it under language.
How does DeepSeek-R1 rank on LMArena?
In the LMArena style-controlled text snapshot published July 20, 2026, DeepSeek-R1 holds official rank 130 with a rating of 1398.1 across 18,524 battles.
What does DeepSeek-R1 cost?
OpenRouter lists it at $0.70 per million input tokens and $2.50 per million output tokens, retrieved July 22, 2026. Those are the platform's routed prices, not first-party provider prices.