Using Claude 3.7 Sonnet on Anthropic
Implementation guide · Claude 3.7 · Anthropic
DeprecatedRetired February 19, 2026
Anthropic exposes Claude 3.7 Sonnet through model ID claude-3-7-sonnet-20250219. Use the setup steps, capabilities, and official provider links below to validate this route before deployment.
Last refreshed 2026-10-17. Next refresh: weekly.
Quick Start
- 1
- 2Use the Anthropic SDK or REST API to call
claude-3-7-sonnet-20250219— see the documentation for request format.
Code Examples
Install
pip install anthropicAPI key
ANTHROPIC_API_KEYModel ID
claude-3-7-sonnet-20250219Use 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-20250219",
max_tokens=1024,
messages=[{"role": "user", "content": "Hello"}]
)
print(message.content[0].text)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