# Muse Spark 1.3 spotted on VoxelBench

Muse Spark 1.3 from Meta was first recorded on 14 Sep 2026. Its release date is not established. Catalogues list a 1,048,576 tokens context window. 11 evidence links.

- Kind: Sighting
- Developer: Meta
- Confidence: Observed
- First seen: 2026-09-14T15:33:58.427Z
- Model: [Muse Spark 1.3](https://alexgetman.com/models/meta/muse-spark-1-3-2/)
- Canonical: https://alexgetman.com/signals/2026/09/14/meta-muse-spark-1-3/

## Evidence links

- [VoxelBench · leaderboard](https://voxelbench.ai/leaderboard)
- [Vertex AI · quotas](https://console.cloud.google.com/iam-admin/quotas)
- [OpenCode · discovery](https://opencode.ai/data/meta/muse-spark-1-3)
- [OpenRouter](https://openrouter.ai/meta/muse-spark-1.3)
- [DesignArena · uicomponent](https://www.designarena.ai/leaderboard/ui-components)
- [Artificial Analysis · benchmarks](https://artificialanalysis.ai/models)
- [models.dev · catalogue](https://models.dev/#muse-spark-1.3-contributor-free)
- [models.dev · catalogue](https://models.dev/#muse-spark-1-3)
- [models.dev · catalogue](https://models.dev/#muse-spark-1.3)
- [Vertex AI · Model Garden](https://console.cloud.google.com/vertex-ai/publishers/meta/model-garden/muse-spark-1.3)
- [Arena · leaderboards](https://developer.meta.com/ai/models/muse-spark/)