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AI Models · Compare

OpenAI o1 vs DeepSeek R1

Side-by-side intelligence, speed, price, benchmarks, strengths and weaknesses.

OpenAI

OpenAI o1

ProprietaryDec 2024

Long chain-of-thought reasoning — unbeatable on hard math and code.

Open docs
DeepSeek

DeepSeek R1

Open sourceJan 2025

Open-weights reasoning model that matches o1 at 1/25 the price.

Open docs

Head to head

Spec
OpenAI o1
DeepSeek R1
Intelligence index↑ better
Winner76
73
Speed↑ better
32 tok/s
Winner60 tok/s
Time to first token↓ better
12 s
Winner1.5 s
Context window↑ better
Winner200k
128k
Max output↑ better
Winner100k
33k
Input price↓ better
$15.00 / 1M tokens
Winner$0.55 / 1M tokens
Output price↓ better
$60.00 / 1M tokens
Winner$2.19 / 1M tokens
Blended price↓ better
$26.25 / 1M tokens
Winner$0.96 / 1M tokens
License
Proprietary
Open source
Input modalities
text, image
text
Output modalities
text
text

Benchmark showdown

MMLU
OpenAI o1
91.8
DeepSeek R1
87.1
MMLU Pro
OpenAI o1
80.0
DeepSeek R1
75.9
GPQA
OpenAI o1
78.0
DeepSeek R1
71.5
MATH
OpenAI o1
94.8
DeepSeek R1
90.2
HumanEval
OpenAI o1
92.4
DeepSeek R1
91.0

Strengths, weaknesses and best-for

OpenAI o1
Strengths
  • Tops MATH and GPQA leaderboards
  • Self-checks its work
Weaknesses
  • Very slow
  • Very expensive
  • Overkill for simple tasks
Best for
  • Research problems
  • Olympiad-level math
  • Algorithm design
DeepSeek R1
Strengths
  • Reasoning at GPT-class scores
  • Open weights
  • Cheap
Weaknesses
  • Slower than non-reasoning peers
Best for
  • Self-hosted reasoning
  • Math & code
  • Cost-sensitive agents

Quick verdict

  • Pick OpenAI o1 if you want it smarter and longer context.
  • Pick DeepSeek R1 if you want it faster and cheaper.

Auto-generated from the spec sheet. Always validate on your own evals.

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