[ Meta ]

Muse Spark 1.2

Muse Spark 1.2 from Meta: a text model for chat and completions, with a 1,048,576-token context window and up to 943,718 output tokens. Every model below its source price, and the cheapest provider wins every request. Pay per token in USDF, with no subscription and no minimum. Streaming and the OpenAI-compatible request format are supported.

Get an API keyTry in Playground
Metamuse-spark-1.2AvailabletextContext window: 1,048,576 tokens

Context window

1,048,576

tokens

Prices show once you sign in. Sign in

Models with a zero-retention route use it by default. A model marked 'provider may keep data' is served by a provider that may keep request data; choosing it is your choice.

Model ID
muse-spark-1.2
Modality
text
Unit
USD per 1M tokens
Endpoints
/v1/chat/completions
Max output
943,718 tokens

Data policy

Privacy details

No 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 key yet? Create one.

Without an account, send the same request to /x402/v1/chat/completions with no credentials and the gateway answers 402 with a 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": "muse-spark-1.2", "messages": [{"role": "user", "content": "Hello"}]}'