Claude 4.5 Sonnet vs Claude 4.5 Opus

Detailed comparison of capabilities, features, and performance.

Claude 4.5 Sonnet

Claude 4.5 Sonnet

Anthropic
VS
Claude 4.5 Opus

Claude 4.5 Opus

Anthropic
Feature Claude 4.5 Sonnet Claude 4.5 Opus
AI Lab Anthropic Anthropic
Context Size 1,000,000 tokens 200,000 tokens
Max Output Size 64,000 tokens 64,000 tokens
Frontier Model Yes Yes
Vision Support Yes Yes
Description The latest Claude 4.5 Sonnet model from Anthropic with a 1M token context window. The latest Opus 4.5 model from Anthropic

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