Muse Spark

LLMMultimodalReasoningTool-Using

Natively multimodal reasoning model by Meta Superintelligence Labs — first in the Muse family, with tool-use, visual chain of thought, and multi-agent orchestration.

Technical specification

License

Proprietary

Tools

Yes

Fine-tuning

Weights access

Closed

Last updated: Apr 9, 2026

Modalities

Input

Text

Image

Output

Text

Capabilities

Reasoning★

Reasoning

Multimodal understanding★

Multimodality

Image understanding★

Vision

Chart understanding

Vision

Coding★

Coding

Architecture and technologies

Core Architecture

Form / Family

Training Techniques

Sources

Blog1Website2

Introducing Muse Spark: Scaling Towards Personal Superintelligence

ai.meta.comBlog

Introducing Muse Spark: MSL’s First Model, Purpose-Built to Prioritize People

about.fb.comWebsite

AI at Meta

ai.meta.comWebsite

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