# Muse Spark Contributor (slim) > Muse Spark Contributor, a family of models by Meta, listed from OpenRouter. Indexed, not reviewed: facts and our own checks, no score or ranking. Muse Spark 1.3 Contributor is the cost-efficient contributor tier of Meta’s multimodal reasoning model for experimentation… - Full: https://www.anchorterminal.com/tools/muse-spark-contributor.md (~550 tokens) · this version ~480 tokens · JSON https://www.anchorterminal.com/tools/muse-spark-contributor.json · canonical https://www.anchorterminal.com/tools/muse-spark-contributor - Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-05 # Muse Spark Contributor > 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 1.3 Contributor is the cost-efficient contributor tier of Meta’s multimodal reasoning model for experimentation, learning, and early-stage agentic, multi-agent, and coding workflows. It is designed to track information... ## Models (2) | Model | OpenRouter id | Released | Context | Input $/1M | Output $/1M | Supports | | --- | --- | --- | --- | --- | --- | --- | | Muse Spark 1.3 Contributor | `meta/muse-spark-1.3-contributor` | 2026-09 | 1.05M | $0.10 | $0.20 | tools, structured output, reasoning, caching, file, image, video | | Muse Spark 1.2 Contributor | `meta/muse-spark-1.2-contributor` | 2026-08 | 1.05M | $0.10 | $0.20 | tools, structured output, reasoning, caching, file, image, video | Prices and limits as OpenRouter lists them; a provider's own price can differ. - JSON: https://www.anchorterminal.com/api/v1/tools/muse-spark-contributor.json - Being indexed says nothing about quality, and nobody can pay for it. Ask for a review: https://www.anchorterminal.com/builders/#claiming