Audio understanding in Muse Spark 1.3 is currently not fully supported, and response quality for requests including audio content may be degraded.
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.
Modalities
In / Out Price
$1.25 / $4.25per 1M
Context
1M
Released
Sep 2, 2026