Meta · Open weights
Muse Spark Open 816B-A42B
Weights are free to download and run locally or on your own servers – no per-call fees; licence terms apply.
Open weights Available 🛠 Tool calling 1M 🕒 Verified on 2026-10-22
Note: Hugging Face repo created 2026-09-15. Download requires a manually approved access request on Hugging Face; Meta’s custom Muse model licence applies.
Free conditions
- Free conditions
- Weights are free to download and run locally or on your own servers – no per-call fees; licence terms apply.
- Free until
- —
- Rate limits
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- Sign-up / login
- Required
- Real-name verification
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- Credit card
- Not required
- Region
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- Data use
- When self-hosted, your data stays on your machine.
ⓘ Free to download; running it needs your own hardware or a paid host.
Specs
- Provider
- Meta
- Platform
- Hugging Face
- Type
- Open weights
- Modalities
- Text · Vision
- Parameters
- ≈822B (from weight files)
- Context length
- 1M (1,048,576 tokens)
- License
- muse-model-license
- Tool calling
- Yes
- Released
- 2026-09-15
How to access
- Hugging Face
- https://huggingface.co/meta-models/Muse-Spark-Open-816B-A42B
Official sources
- Hugging Face – meta-models/Muse-Spark-Open-816B-A42B https://huggingface.co/meta-models/Muse-Spark-Open-816B-A42B
- OpenRouter models API（上下文 / 工具调用字段 / context & tool-calling fields） https://openrouter.ai/api/v1/models
🕒 Verified on 2026-10-22 · Free terms change often. Always confirm limits, data-use policy and regional availability on the official page before relying on a free tier.
Muse Spark Open: paid API prices on 5 channels →