Claude 4.5 Sonnet vs GPT-4o mini

Detailed comparison of capabilities, features, and performance.

Claude 4.5 Sonnet

Claude 4.5 Sonnet

Anthropic
VS
GPT-4o mini

GPT-4o mini

OpenAI
Feature Claude 4.5 Sonnet GPT-4o mini
AI Lab Anthropic OpenAI
Context Size 1,000,000 tokens 128,000 tokens
Max Output Size 64,000 tokens 16,384 tokens
Frontier Model Yes No
Vision Support Yes Yes
Description The latest Claude 4.5 Sonnet model from Anthropic with a 1M token context window. OpenAI's affordable and intelligent small model for fast lightweight tasks

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