# Meta — Introducing Muse Spark 1.3

- Company: Meta (meta.com)
- Announced: 2026-09-02
- Category: model-update
- Coverage: 8 outlets
- 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
- Models affected: Muse Spark 1.3, Muse Spark 1.2

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.

## Evidence

Verbatim from https://research.meta.ai/blog/introducing-muse-spark-1-3:

> We’re excited to release Muse Spark 1.3, which delivers improved performance across agentic and coding tasks.

## Around this story

Outlets this record can name and link:

- 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
- 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
- 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
- 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
- Neowin: https://neowin.net/news/meta-rolls-out-muse-spark-13-with-stronger-coding-and-agentic-performance
- Implicator — Muse Spark 1.3 Ties GPT-5.6 Sol at 42% Lower Cost: https://implicator.ai/meta-muse-spark-1-3-cost-per-task
- Verdict — Meta releases Muse Spark 1.3 for coding and AI agents: https://verdict.co.uk/meta-releases-muse-spark-1-3
- 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

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