All models
Claude 4 Sonnet
Frontier Vision Anthropic
Claude 3.5 Sonnet Frontier Claude 3.7 Sonnet Frontier Claude 3.7 Sonnet (high output) Frontier Claude 3.7 Sonnet (thinking) Frontier Claude 4 Opus Frontier Gemini 2.5 Pro Frontier GPT-4.1 Frontier o1 Frontier o1-mini Frontier o3 Frontier

Claude 4 Sonnet

The latest Sonnet 4 model from Anthropic

Model Specifications

Context window 200,000 tokens
Max output 128,000 tokens
Knowledge cutoff January 2025
Multipart messages No
Vision capabilities Yes

Default Parameters

Temperature 0.3
Top P 1.0
Frequency penalty 0.0
Presence penalty 0.0
Try on Simtheory

Supported Parameters

Temperature

Supported

Controls randomness: Lower values make output more deterministic, higher values more creative.

Range: 0.0 - 1.0 Default: 0.3

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Context: 200,000 Output: 128,000
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The latest Sonnet 3.7 model from Anthropic

Context: 128,000 Output: 128,000
Claude 3.7 Sonnet (high output)

Claude 3.7 Sonnet (high output) Frontier Vision

The latest Sonnet 3.7 model from Anthropic

Context: 204,800 Output: 128,000