[ Anthropic ]

Claude Opus 4.1

Routed to the cheapest source. At or below list. Pay per token in USDF, with no subscription and no minimum. Streaming and the OpenAI-compatible request format are supported.

All models

Anthropicclaude-opus-4-1AvailabletextContext window: 200,000 tokens

Input

$15.00

$ / 1M tokens

Output

$75.00

$ / 1M tokens

Cached input

$1.50

$ / 1M tokens

Context window

200,000

tokens

Model ID: claude-opus-4-1
Modality: text
Unit: USD per 1M tokens
Status: Available
Endpoints: /v1/chat/completions
Context window: 200,000 tokens
Max output: 32,000 tokens
Pricing basis: Routed to the cheapest source. At or below list.
Cache write (5 min): $18.75 / 1M
Cache write (1 h): $30.00 / 1M

Sources

Zero retentionNo training

Make your first request

Use any OpenAI-compatible SDK. Change the base URL, keep everything else. Responses include a receipt with the exact cost.

No account: send the same request to /x402/v1/chat/completions without credentials and the gateway answers 402 with the quote. Pay per request.

curl https://api.usdf.fi/v1/chat/completions \
  -H "Authorization: Bearer $USDF_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "claude-opus-4-1", "messages": [{"role": "user", "content": "Hello"}]}'