Claude 4.5 Sonnet (thinking) vs Claude 4.6 Opus

Detailed comparison of capabilities, features, and performance.

Claude 4.5 Sonnet (thinking)

Claude 4.5 Sonnet (thinking)

Anthropic
VS
Claude 4.6 Opus

Claude 4.6 Opus

Anthropic
Feature Claude 4.5 Sonnet (thinking) Claude 4.6 Opus
AI Lab Anthropic Anthropic
Context Size 1,000,000 tokens 1,000,000 tokens
Max Output Size 64,000 tokens 125,000 tokens
Frontier Model Yes Yes
Vision Support Yes Yes
Description The latest Claude 4.5 Sonnet model from Anthropic with maximum reasoning enabled, 200k reasoning tokens in 1M context. The latest Opus 4.6 model from Anthropic

Try both models in your workspace

Access both Claude 4.5 Sonnet (thinking) and Claude 4.6 Opus in a single workspace without managing multiple API keys.

Create your workspace