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o1 vs R1

How do these models stack up? Below is an expert side-by-side comparison of specifications, context window capacity, live pricing per million tokens, and standardized benchmark scores for o1 and R1.

OpenAI

o1

The latest and strongest model family from OpenAI, o1 is designed to spend more time thinking before responding. The o1 model series is trained with large-scale reinforcement learning to reason...

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DeepSeek

R1

DeepSeek R1 is here: Performance on par with [OpenAI o1](/openai/o1), but open-sourced and with fully open reasoning tokens. It's 671B parameters in size, with 37B active in an inference pass....

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Technical Specifications

Specificationo1R1
ProviderOpenAIDeepSeek
Context Window200,000 tokens163,840 tokens
Agent Suitability88/100N/A
Time to First Token (TTFT)2500 msN/A
Deployment Modelmanaged apiself hostable
Production Stabilitystablestable
API AvailableYesYes
Released Date2024-12-172025-01-20

API Pricing Comparison

Input Price per Million Tokens

o1

$15.00

R1

$0.70

Output Price per Million Tokens

o1

$60.00

R1

$2.50

Want to test both models live?

Run side-by-side prompt prompts in our dynamic Sandbox. Check execution speeds, latency metrics, and compute actual costs in real-time.

Benchmark Performance Metrics

Scores show the raw performance percentages verified across key evaluation suites. Higher bars indicate superior accuracy and capability in that domain.

MMLUGeneral knowledge & multi-task understanding
9180.0%vs9080.0%
o1
R1
HumanEvalPython coding & logic synthesis
9450.0%vs9280.0%
o1
R1
MATHComplex mathematical problem solving
9480.0%vs9310.0%
o1
R1
GPQAGraduate-level expert reasoning
7830.0%vs6210.0%
o1
R1
HellaSwagCommonsense reasoning and inference
9200.0%vs9050.0%
o1
R1
MT-BenchMulti-turn conversation flow quality
940.0%vs935.0%
o1
R1

o1 Quirks & Gotchas

  • โ–ธReasoning model โ€” high latency by design, not for real-time use
  • โ–ธBest for complex math/code reasoning where accuracy > speed
  • โ–ธUse o3-mini when you need reasoning with lower latency

R1 Quirks & Gotchas

No developer gotchas reported.