# Muse Spark Open

> Muse Spark Open, a family of models by Meta, listed from OpenRouter. Indexed, not reviewed: facts and our own checks, no score or ranking. Muse Spark Open is a coding-optimized open-weight model. Trained specifically for agentic coding workflows, it delivers higher first-attempt…

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- Updated: 2026-10-15

# Muse Spark Open

> Indexed, not reviewed: facts from OpenRouter and our own checks. No score, grade or rank, and not in the rankings until the panel reviews it. How the index works: https://www.anchorterminal.com/indexed/

- Kind: model family, by Meta
- Category: Model APIs & inference (https://www.anchorterminal.com/categories/inference.md)
- Listed because: OpenRouter lists it, with prices from the providers that serve it.
- What OpenRouter says: Muse Spark Open is a coding-optimized open-weight model. Trained specifically for agentic coding workflows, it delivers higher first-attempt accuracy, reliable tool calling, and deep codebase understanding across the repos developers...

## Models (1)

| Model | OpenRouter id | Released | Context | Input $/1M | Output $/1M | Supports |
| --- | --- | --- | --- | --- | --- | --- |
| Muse Spark Open | `meta/muse-spark-open` | 2026-10 | 1.05M | $1.25 | $4.25 | tools, structured output, reasoning, caching, audio, file, image, video |

Prices and limits as OpenRouter lists them; a provider's own price can differ.

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