Anthropic exposes Claude Opus 4.1 through model ID claude-opus-4-1. 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
- 2Use the Anthropic SDK or REST API to call
claude-opus-4-1— see the documentation for request format. - 3
Code Examples
Install
pip install anthropicAPI key
ANTHROPIC_API_KEYModel ID
claude-opus-4-1Use 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-opus-4-1",
max_tokens=1024,
messages=[{"role": "user", "content": "Hello"}]
)
print(message.content[0].text)Pricing on Anthropic
| Type | Price (per 1M) |
|---|---|
| Input tokens | $15.00 |
| Output tokens | $75.00 |
Capabilities
VisionMultimodalStructured Outputs
About Claude Opus 4.1
Claude Opus 4.1 is Anthropic's Claude 4 model. It offers a 200K-token context window and scores 77.1 on MMMU.
Model Specs
Released2025-08-01
Context200k
Knowledge cutoff2025-03