Muse Spark 1.3
Meta AI · · 1 days after Muse Voice Transcribe
Verified
1 of 1 published values traced to a source1 primary source, 1 archived3 not researched yet
Why this status
Newly added. Sources are not archived and no value has been traced to one yet — run `npm run enrich`.
What these states mean · How records are judged · Has this record changed?
Meta released Muse Spark 1.3 in Muse Code and the Meta Model API, reporting improved performance on agentic and coding tasks and, in its own engineering evaluation, ~20% fewer tool calls and ~25% fewer tokens. Previously available reasoning modes shipped on the day, with max reasoning to follow after further safety testing. Meta lists a Muse Spark open-weights release as future roadmap, so this release is not open weights.
Details
| Released | September 2, 2026stated in research.meta.aiMuse Spark 1.3 was released on September 2, 2026.
|
|---|---|
| Company | Meta AI |
| Family | Muse |
| Lineage | after Muse Spark 1.2 |
| Era | Agentic systems |
| Type | Language model · LLM |
| Modalities | Not recorded |
| Capabilities | Not recorded |
| Weights | Proprietary |
| Licence | Not applicable — proprietary |
| Context window | Not researched |
| Parameters | Not 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.
- Current price and providers OpenRouter ↗
- Current benchmark scores Artificial Analysis ↗
Sources
Record status: verified · confidence 90/100 · 1 of 1 primary
Newly added. Sources are not archived and no value has been traced to one yet — run `npm run enrich`.
- research.meta.ai Official announcement archived
Primary means published by the organisation that made the model. Verified records require at least one.
Muse family
- Muse Spark April 8, 2026
- Muse Spark 1.1 July 9, 2026
- Muse Spark 1.2 August 5, 2026
- Muse Glimmer August 10, 2026
- Muse Spark 1.3 September 2, 2026
- Muse Wonder October 12, 2026
- Muse Wonder Full October 12, 2026
- Muse Spark Open October 15, 2026
What changed from Muse Spark 1.2
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 researched on both releases); Parameters (not researched on both releases); Capabilities and modalities (not researched on both releases)
Compare Muse Spark 1.3 with another model →
See Muse Spark 1.3 on the interactive timeline →