Muse Spark 1.3

Muse Spark 1.3 is a multimodal reasoning model from Meta for long-running agentic, multi-agent, and coding workflows. It is designed to keep track of information across extended tasks, work through conflicting inputs, and request clarification or confirmation when needed, with an emphasis on concise execution.

Speech-to-textMeta1M tokens$1.3626 / min

meta/muse-spark-1.3

Context
1M tokens
Completion cap
943,718
Tools
Yes
JSON
Yes
Released
2026-09-02

Call it from Geek Hub

Same OpenAI SDK. Change the base URL and the model id.

curl https://api.geekhub.mx/v1/chat/completions \
  -H "Authorization: Bearer $GEEKHUB_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "meta/muse-spark-1.3",
    "messages": [{"role": "user", "content": "Hola"}]
  }'
Get an API key

Frequently asked questions

What is Muse Spark 1.3?
Muse Spark 1.3 is a multimodal reasoning model from Meta for long-running agentic, multi-agent, and coding workflows. It is designed to keep track of information across extended tasks, work through conflicting inputs, and request clarification or confirmation when needed, with an emphasis on concise execution. Muse Spark 1.3 runs on the Geek Hub API (OpenAI-compatible). Model id: meta/muse-spark-1.3.
Is Muse Spark 1.3 free?
No. $1.3626 per minute on Geek Hub.
What is the context length of Muse Spark 1.3?
Muse Spark 1.3 has a 1M tokens context window. It supports up to 943,718 completion tokens.
When was Muse Spark 1.3 released?
Muse Spark 1.3 was released on 2026-09-02.

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