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Claude 4.5 Sonnet

Claude 4.5 Sonnet

Frontier Vision Anthropic

The latest Claude 4.5 Sonnet model from Anthropic with a 1M token context window.

Try on Simtheory
Qwen 3.6 Plus Frontier Claude 3.7 Sonnet Frontier Claude 3.7 Sonnet (high output) Frontier Claude 3.7 Sonnet (thinking) Frontier Claude 4.5 Opus Frontier Claude 4.5 Sonnet (thinking) Frontier Claude 4.6 Opus Frontier Claude 4.6 Opus Max Frontier Claude 4.6 Sonnet Frontier Claude 4.6 Sonnet Max Frontier

Specifications

Context window 1,000,000 tokens
Max output 64,000 tokens
Knowledge cutoff July 2025
Multipart messages No
Vision capabilities Yes

Default Parameters

Temperature 0.3
Top P 1.0
Frequency penalty 0.0
Presence penalty 0.0

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