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DeepSeek
DeepSeek-R1
Released Jan 20, 2025 · knowledge cutoff 2024-07
- Status
- Superseded
- Location
- China
- Modality
- Text
- Context window
- 128K
- Max output
- 33K
- Speed
- —
- Price ($/MTok in / out)
- $0.55 / $2.19
- Cost per task
- $0.25
- Open weights
- Yes
Benchmarks7 of 8 reported
MMLU-Pro
84%
GPQA Diamond
71.5%
SWE-bench Verified
49.2%
AIME (latest)
79.8%
Humanity's Last Exam
8.6%
LMArena Elo
1358
ARC-AGI-2
1.3%
Terminal-Bench 2.1
—
Strengths & weaknesses
Strengths
- Shows its full reasoning trace — the model a lot of people learned reasoning from
- Open weights meant anyone could distil it into smaller reasoning models
- Genuinely strong maths and logic without a frontier lab's budget behind it
Weaknesses
- Reasoning runs long and repetitive, inflating both latency and cost
- Self-censors mid-answer on China-sensitive subjects
- Instruction-following and formatting lag well behind its raw reasoning
The 'DeepSeek moment' of January 2025.
For developers
API model strings
Not researched
Licence
Not researched
Retirement
No retirement announced
Lineage
No recorded predecessor