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Claude 3.7 Sonnet (thinking) vs Claude 4.5 Sonnet (thinking)

Detailed comparison of capabilities, features, and performance.

Claude 3.7 Sonnet (thinking)

Claude 3.7 Sonnet (thinking)

Anthropic
VS
Claude 4.5 Sonnet (thinking)

Claude 4.5 Sonnet (thinking)

Anthropic
Feature Claude 3.7 Sonnet (thinking) Claude 4.5 Sonnet (thinking)
AI Lab Anthropic Anthropic
Context Size 204,800 tokens 1,000,000 tokens
Max Output Size 64,000 tokens 64,000 tokens
Frontier Model Yes Yes
Vision Support Yes Yes
Description The latest Sonnet 3.7 model from Anthropic The latest Claude 4.5 Sonnet model from Anthropic with maximum reasoning enabled, 200k reasoning tokens in 1M context.

Learn more about Claude 3.7 Sonnet (thinking)

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Learn more about Claude 4.5 Sonnet (thinking)

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Claude 3.7 Sonnet (high output) Claude 3.7 Sonnet (high output)
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