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Claude 4.5 Haiku vs Claude 4.5 Sonnet (thinking)

Detailed comparison of capabilities, features, and performance.

Feature
Claude 4.5 Haiku
Claude 4.5 Sonnet (thinking)
Model Image
Claude 4.5 Haiku
Claude 4.5 Sonnet (thinking)
AI Lab
Anthropic
Anthropic
Context Size
200,000 tokens
1,000,000 tokens
Max Output Size
64,000 tokens
64,000 tokens
Frontier Model
No
Yes
Vision Support
Yes
Yes
Description
The latest Claude 4.5 Haiku model from Anthropic with a 1M token context window.
The latest Claude 4.5 Sonnet model from Anthropic with maximum reasoning enabled, 200k reasoning tokens in 1M context.

Learn more about Claude 4.5 Haiku

View detailed specifications and capabilities

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Learn more about Claude 4.5 Sonnet (thinking)

View detailed specifications and capabilities

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Claude 3.7 Sonnet Claude 3.7 Sonnet
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Claude 4.5 Sonnet (thinking) Claude 4.5 Sonnet (thinking)
Claude 3.7 Sonnet (high output) Claude 3.7 Sonnet (high output)
VS
Claude 4.5 Sonnet (thinking) Claude 4.5 Sonnet (thinking)
Claude 3.7 Sonnet (thinking) Claude 3.7 Sonnet (thinking)
VS
Claude 4.5 Sonnet (thinking) Claude 4.5 Sonnet (thinking)

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