GPT-4o vs Claude 4.5 Sonnet (thinking)
Detailed comparison of capabilities, features, and performance.
Feature
GPT-4o
Claude 4.5 Sonnet (thinking)
Model Image
AI Lab
OpenAI
Anthropic
Context Size
128,000 tokens
1,000,000 tokens
Max Output Size
4,096 tokens
200,000 tokens
Frontier Model
Yes
Yes
Vision Support
Yes
Yes
Description
The Omni model from OpenAI that reasons across audio vision and text
The latest Claude 4.5 Sonnet model from Anthropic with maximum reasoning enabled, 200k reasoning tokens in 1M context.
Learn more about GPT-4o
View detailed specifications and capabilities
View model details →Learn more about Claude 4.5 Sonnet (thinking)
View detailed specifications and capabilities
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