Muse Spark

Closed weights Meta AI April 2026

No estimate

No hardware requirements for this model

The weights for this model have not been published, so it cannot be downloaded or run on your own hardware at any size. It is reachable only through its provider, and no graphics card changes that.

On record

Full specification

Everything on record for this model. Most of it describes how it was trained rather than how it runs — useful context for judging how much work went into it, and how it compares with models built at a different scale.

Origin

Who built this model, where, and when it was published.

Organisation
Meta AI
Organisation type
Industry
Country
United States of America
Published
8 April 2026

What it does

The problem areas the model was built for. A model can carry several of each.

Domain
Multimodal, Language, Vision
Task
Language modeling/generation, Question answering

Size

How large the model is and how much data it was trained on. Parameters are the figure that decides whether it fits on a given graphics card.

Training data
tokens

Availability

Whether you can obtain the model and run it on your own hardware, which is what decides if any of the graphics-card figures on this page apply.

Weights
Closed — provider access only
Model access
API access
Training code
Unreleased

How it is classified

Labels the source dataset applies when tracking notable models, and how confident it is in the entry.

Why it is tracked
Discretionary

At release, flagship LLM of one of the largest AI companies in the world

Record confidence
Confident

Sources

Where this record came from and when it was last checked.

Reference
Introducing Muse Spark: Scaling Towards Personal Superintelligence
Last updated
13 July 2026

What the numbers mean

Where it came from

Muse Spark was published by Meta AI, in United States of America, in April 2026. It comes out of industry.

It works in Multimodal, Language, Vision, and is recorded as doing language modeling/generation, Question answering.

This is a closed model: the trained values stayed with whoever produced them, and there is no local version to run.

Training and provenance

It is tracked in the underlying dataset for one reason in particular: discretionary.

Answers

Muse Spark — common questions

01

Is Muse Spark open source?

No. Muse Spark has not had its weights published, so it exists only as a service controlled by its owner.

02

How many parameters does Muse Spark have?

No parameter count has been published for Muse Spark, which is why no memory or speed figure appears on this page.

03

Who created Muse Spark?

Muse Spark was published by Meta AI, based in United States of America, categorised as industry.

04

When was Muse Spark released?

Muse Spark was published in April 2026.

05

What is Muse Spark used for?

Muse Spark works in Multimodal, Language, Vision, and is recorded as handling language modeling/generation, Question answering. A model can carry several of each, so these are the areas it was built for rather than a limit on what it will attempt.

06

What GPU do I need to run Muse Spark?

None. Muse Spark is a closed model — its weights were never published, so it cannot be downloaded or run on your own hardware at any price. It is reachable only through its provider.

Source

Original publication

Record last updated 13 July 2026

The other direction

Looking at it from the other side?

This page starts from the model. If you already own a card and want to know everything it will run, start from the hardware instead.