o3 vs Claude 4 Sonnet (thinking)
Detailed comparison of capabilities, features, and performance.
Feature
o3
Claude 4 Sonnet (thinking)
Model Image
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
Yes
Yes
Description
o3 is powerful across all domains. It excels at Math, Science, Coding and Visual Reasoning tasks. Best for multi-step problems, not everyday.
The latest Sonnet 4 model from Anthropic with high thinking mode
Learn more about o3
View detailed specifications and capabilities
View model details →Learn more about Claude 4 Sonnet (thinking)
View detailed specifications and capabilities
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