Claude 3.7 Sonnet (thinking) vs Claude 4.5 Haiku

Detailed comparison of capabilities, features, and performance.

Claude 3.7 Sonnet (thinking)

Claude 3.7 Sonnet (thinking)

Anthropic
VS
Claude 4.5 Haiku

Claude 4.5 Haiku

Anthropic
Feature Claude 3.7 Sonnet (thinking) Claude 4.5 Haiku
AI Lab Anthropic Anthropic
Context Size 204,800 tokens 200,000 tokens
Max Output Size 64,000 tokens 64,000 tokens
Frontier Model Yes No
Vision Support Yes Yes
Description The latest Sonnet 3.7 model from Anthropic The latest Claude 4.5 Haiku model from Anthropic with a 1M token context window.

Try both models in your workspace

Access both Claude 3.7 Sonnet (thinking) and Claude 4.5 Haiku in a single workspace without managing multiple API keys.

Create your workspace