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o1-pro vs o3

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-pro and o3.

OpenAI

o1-pro

The o1 series of models are trained with reinforcement learning to think before they answer and perform complex reasoning. The o1-pro model uses more compute to think harder and provide...

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OpenAI

o3

o3 is a well-rounded and powerful model across domains. It sets a new standard for math, science, coding, and visual reasoning tasks. It also excels at technical writing and instruction-following....

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Technical Specifications

Specificationo1-proo3
ProviderOpenAIOpenAI
Context Window200,000 tokens200,000 tokens
Agent SuitabilityN/AN/A
Time to First Token (TTFT)N/AN/A
Deployment Modelmanaged apimanaged api
Production Stabilitystablestable
API AvailableYesYes
Released Date2025-03-192025-04-16

API Pricing Comparison

Input Price per Million Tokens

o1-pro

$150.00

o3

$2.00

Output Price per Million Tokens

o1-pro

$600.00

o3

$8.00

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.

o1-pro Quirks & Gotchas

No developer gotchas reported.

o3 Quirks & Gotchas

No developer gotchas reported.