# Muse Spark

id: ent_muse-spark  
kind: product  
timeline: /timelines/muse-spark.md  
page: /record/muse-spark  
same_as: https://asof.is/record/muse-spark (how to cite the id: /identifiers.md)  

first Muse model, by Meta Superintelligence Labs

## Fact pages

One page per fact: the current value with its sources, then every dated value and what replaced what. Fetch any of them as markdown.

- [Muse Spark release date](/record/muse-spark/model_release.md)
- [Muse Spark predecessor](/record/muse-spark/predecessor.md)

## Current state

What the record asserts: claims that held, valid by their sources or primary-sourced at confidence 0.7 or more. Unverified, disputed, retracted and review-marked claims are listed below, labelled, not here.

- [Muse Spark](/record/muse-spark.md) | predecessor | [Llama 4 Maverick](/record/llama-4-maverick.md) | valid 2026-04-08 to present | conf 0.95 | valid | [clm_07EBDD71300E](/claim/clm_07EBDD71300E.md)
  sources: https://ai.meta.com/blog/introducing-muse-spark-msl/

## All claims

One claim per line, newest first. Superseded claims stay visible.

- [Muse Spark](/record/muse-spark.md) | predecessor | [Llama 4 Maverick](/record/llama-4-maverick.md) | valid 2026-04-08 to present | conf 0.95 | valid | [clm_07EBDD71300E](/claim/clm_07EBDD71300E.md)
  sources: https://ai.meta.com/blog/introducing-muse-spark-msl/

## Posts and Hugging Face repos (1)

Dated items from the entity's own feeds, and the days its Hugging Face repositories were created, newest first.

- [Muse Spark](/record/muse-spark.md) | model_release | Muse Spark | valid 2026-04-08 to present | conf 0.95 | valid | [clm_FABEC0B5AFE9](/claim/clm_FABEC0B5AFE9.md)
  sources: https://ai.meta.com/blog/introducing-muse-spark-msl/

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AsOf is a temporal fact ledger: a structured, dated, sourced record of what is true and what changed, built for AI retrieval.