# Meta — Muse Spark 1.3

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## Model

- Name: Muse Spark 1.3
- Company: Meta (meta.com)
- Launch post: Introducing Muse Spark 1.3 — https://forck.live/items/7437-introducing-muse-spark-1-3
- Announced: 2026-09-02
- Launch source: https://research.meta.ai/blog/introducing-muse-spark-1-3
- Launch chosen by: a person, pinned in the model registry
- Released (per models.dev): 2026-09-02
- Listed (per OpenRouter): 2026-09-02
- Open weights: no
- Posts about it: 1
- Outlets named under its posts: 7
- Variant: Muse Spark 1.3 Contributor — https://forck.live/models/muse-spark-1-3-contributor
- OpenRouter id: meta/muse-spark-1.3 — https://openrouter.ai/meta/muse-spark-1.3

## Posts about it

_Meta's own posts whose title names Muse Spark 1.3, and its launch post, in the record's order: dated newest first, undated last. The record reads the newest 50 first-party posts mentioning the model, every company's together, so a model mentioned more often than that lists the newest of them._

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Anything after `Record` is held detail that only some announcements carry.

### Meta — Introducing Muse Spark 1.3

- Company: Meta (meta.com)
- Announced: 2026-09-02
- Category: model-update
- Coverage: not counted
- Announcement: yes
- Group: models
- Source: https://research.meta.ai/blog/introducing-muse-spark-1-3
- Record: https://forck.live/items/7437-introducing-muse-spark-1-3
- Subject: Muse

Meta released Muse Spark 1.3, an update to its Muse Spark model, with improved performance on agentic and coding tasks. The model is available today in Muse Code and Meta Model API, with max reasoning coming after additional safety testing. Meta also announced plans for a Muse Spark 1.2 open weights release following final safety fine-tuning.

## Who reported on it

_Outlets this record can name and link, under the first-party post each one covered. Their number is `Outlets named under its posts` above, and the rows are not totalled again. A post's own `Coverage` can be higher: it counts outlets the signal saw that this record cannot name and link._

### On: Introducing Muse Spark 1.3

Record: https://forck.live/items/7437-introducing-muse-spark-1-3

- InfoWorld — Meta upgrades Muse Spark for long-horizon coding without raising API prices: https://infoworld.com/article/4218106/meta-upgrades-muse-spark-for-long-horizon-coding-without-raising-api-prices.html
- Neowin: https://neowin.net/news/meta-rolls-out-muse-spark-13-with-stronger-coding-and-agentic-performance
- RuntimeWire — Alexandr Wang's Meta team ships Muse Spark 1.3 for coding agents: https://runtimewire.com/article/meta-muse-spark-1-3-alexandr-wang-ai-model
- Tech Monitor — Meta releases Muse Spark 1.3 for coding and AI agents: https://techmonitor.ai/news/meta-releases-muse-spark-1-3-for-coding-and-ai-agents
- The Register — Zuck's Muse to Spark joy with open weights release 'soon': https://theregister.com/ai-and-ml/2026/09/02/zucks-muse-to-spark-joy-with-open-weights-release-soon/5294093
- Unite — Meta Launches Muse Spark 1.3, Citing Gains in Coding and Agentic Tasks: https://unite.ai/meta-launches-muse-spark-1-3-citing-gains-in-coding-and-agentic-tasks
- Verdict — Meta releases Muse Spark 1.3 for coding and AI agents: https://verdict.co.uk/meta-releases-muse-spark-1-3

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Record: https://forck.live/models/muse-spark-1-3
Catalogue: https://forck.live/llms.txt
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