Meta/muse-spark-1-1/Released Jul 2026

Muse Spark 1.1

Agentic coding with 1M context

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About Muse Spark 1.1

Muse Spark 1.1 is Meta's multimodal reasoning model for agentic workflows, coding, computer use, and long-running tasks. It can plan across tools, delegate work to parallel subagents, work with large codebases, and retain important context across extended sessions.

The model supports structured output, parallel tool calling, and visual understanding. Meta serves Muse Spark 1.1 through the proprietary Meta Model API in public preview; its weights are not available for local deployment or fine-tuning.

MetricValue
Context Length1,000,000 tokens

Ready to build with Muse Spark 1.1?

Try Muse Spark 1.1 in the Workbench to prompt it, compare outputs, and iterate on prompts without writing any code. When you're ready to ship, call the same model from our API and build your own apps on top of it.

Sign in to grab your API key and start making requests.
bash
curl -sSf -X POST https://hub.oxen.ai/api/ai/chat/completions \
    -H "Content-Type: application/json" \
    -H "Authorization: Bearer $OXEN_API_KEY" \
    -d '{
  "model": "muse-spark-1-1",
  "messages": [
    {
      "role": "user",
      "content": "Try sending a message."
    }
  ]
}'