LLM Reference
Anthropic

Using Claude 3.7 Sonnet on Anthropic

Implementation guide · Claude 3.7 · Anthropic

Serverless

Anthropic exposes Claude 3.7 Sonnet through model ID claude-3-7-sonnet. Use the setup steps, sourced pricing, capabilities, and official provider links below to validate this route before deployment.

Last refreshed 2026-07-26. Next refresh: weekly.

Quick Start

  1. 1
    Create an account at Anthropic and generate an API key.
  2. 2
    Use the Anthropic SDK or REST API to call claude-3-7-sonnet — see the documentation for request format.

Code Examples

Install
pip install anthropic
API key
ANTHROPIC_API_KEY
Model ID
claude-3-7-sonnet

Use the versioned model ID, e.g. "claude-sonnet-4-6" or "claude-opus-4-7-20251101".

import anthropic

client = anthropic.Anthropic()  # reads ANTHROPIC_API_KEY from env
message = client.messages.create(
    model="claude-3-7-sonnet",
    max_tokens=1024,
    messages=[{"role": "user", "content": "Hello"}]
)
print(message.content[0].text)

Pricing on Anthropic

Capabilities

VisionMultimodalReasoningJSON / Tool useStructured OutputsCode Execution

About Claude 3.7 Sonnet

Claude 3.7 Sonnet is Anthropic's advanced model with extended thinking capabilities, offering state-of-the-art reasoning for complex tasks.

Model Specs

Released2024-03-04
Context200k
ArchitectureDecoder Only
Knowledge cutoff2024-11

Provider

Anthropic
Anthropic

San Francisco, California, United States