GPT-4o mini vs Claude 4.5 Sonnet (thinking)
Detailed comparison of capabilities, features, and performance.
Feature
GPT-4o mini
Claude 4.5 Sonnet (thinking)
Model Image
AI Lab
OpenAI
Anthropic
Context Size
128,000 tokens
1,000,000 tokens
Max Output Size
16,384 tokens
64,000 tokens
Frontier Model
No
Yes
Vision Support
Yes
Yes
Description
OpenAI's affordable and intelligent small model for fast lightweight tasks
The latest Claude 4.5 Sonnet model from Anthropic with maximum reasoning enabled, 200k reasoning tokens in 1M context.
Learn more about GPT-4o mini
View detailed specifications and capabilities
View model details →Learn more about Claude 4.5 Sonnet (thinking)
View detailed specifications and capabilities
View model details →More model comparisons
Try both models in your workspace
Access both GPT-4o mini and Claude 4.5 Sonnet (thinking) in a single workspace without managing multiple API keys.
Create your workspace