Muse Spark 1.2

Meta AI · · 27 days after Muse Spark 1.1

Partially verified

0 of 2 published values traced to a source0 primary sources, 2 archived2 not researched yet

Why this status

No primary source. The release is recorded from news reporting only, so it cannot be verified until the lab's own announcement is cited.

What these states mean · How records are judged · Has this record changed?

Shipped with Muse Code, Meta's first terminal coding agent.

agenticlong-contextflagship

Details

ReleasedAugust 5, 2026
CompanyMeta AI
FamilyMuse
Lineageafter Muse Spark 1.1 · before Muse Spark 1.3
EraAgentic systems
TypeLanguage model · LLM
ModalitiesNot recorded
CapabilitiesAgentic
WeightsProprietary
LicenceNot applicable — proprietary
Context window1M tokens
ParametersNot researched

Current information, elsewhere

This record is a historical one: every figure above is traced to a dated primary source. For what is true today — live pricing, current rankings, availability — these are better maintained than anything here could be.

Sources

Record status: partly verified · confidence 60/100 · 0 of 2 primary

No primary source. The release is recorded from news reporting only, so it cannot be verified until the lab's own announcement is cited.

Primary means published by the organisation that made the model. Verified records require at least one.

Muse family

  1. Muse Spark April 8, 2026
  2. Muse Spark 1.1 July 9, 2026
  3. Muse Spark 1.2 August 5, 2026
  4. Muse Glimmer August 10, 2026
  5. Muse Spark 1.3 September 2, 2026
  6. Muse Wonder October 12, 2026
  7. Muse Wonder Full October 12, 2026
  8. Muse Spark Open October 15, 2026

What changed from Muse Spark 1.1

Compared with the previous release in this series. A field appears only when both records state a value — where one does not, it is listed as uncomparable rather than dropped, because a gap in our research is not a finding about the model.

Not comparable: Context window (not disclosed for both releases); Parameters (not researched on both releases); Capabilities and modalities (not researched on both releases)

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