o3-pro vs Claude 4 Opus (thinking)

Detailed comparison of capabilities, features, and performance.

Feature
o3-pro
Claude 4 Opus (thinking)
Model Image
o3-pro
Claude 4 Opus (thinking)
AI Lab
OpenAI
Anthropic
Context Size
200,000 tokens
200,000 tokens
Max Output Size
100,000 tokens
64,000 tokens
Frontier Model
Yes
Yes
Vision Support
No
Yes
Description
o3-pro a version of o3 that uses more compute to think harder and provide reliable answers to challenging problems.
The latest Opus 4 model from Anthropic with high thinking mode

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Access both o3-pro and Claude 4 Opus (thinking) in a single workspace without managing multiple API keys.

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