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Muse Spark Open

by Meta
meta/muse-spark-open

Muse Spark Open is a text and image and video and file and audio-input model by Meta, available through the AgentSky API as meta/muse-spark-open at $1.450625 per million input tokens and $4.932125 per million output tokens, with a 1M context window.

Muse Spark Open is a coding-optimized open-weight model.

Repo

Pricing

USD per million tokens, using your plan when signed in.
MeterPer 1M tokens
InputPrice: $1.450625
OutputPrice: $4.932125
Cache readPrice: $0.174075
Cache writePrice: $1.450625

Every response carries its own cost. Balance and per-call records: /v1/credits and /v1/generation.

Use it

Point your client at the gateway and pass this model id. Nothing else changes.
import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://gateway.agentsky.dev/v1",
  apiKey: process.env.AGENTSKY_API_KEY, // ast_…
});

const completion = await client.chat.completions.create({
  model: "meta/muse-spark-open",
  messages: [{ role: "user", content: "Summarise this ticket." }],
});
console.log(completion.usage.cost); // USD, in the response

Questions