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Meta · Text model · GA

Muse Spark Open

–Input / 1M
–Output / 1M
1.05MContext
25AA index
139Tokens/s
–Default level

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Figures checked 1 Nov 2026. A dash means not published on the sources we checked, so it stays blank rather than estimated. AA index and speed are from Artificial Analysis at the xhigh setting.

Full sourced profile

LabMeta
TypeText
StatusGA dev.meta.ai (opens in a new tab)
Released15 Oct 2026 models.dev (opens in a new tab)
API accessOpen weights only dev.meta.ai (opens in a new tab)
API model ID–
API rate limits–
Consumer app plans–
Price at each level–
Input per 1M tokens–
Output per 1M tokens–
Cached input–
Batch in / out–
Other pricingNot on Meta Model API. Self-host or use a hosted provider
Context window1.05M tokens models.dev (opens in a new tab)
Max output131K tokens models.dev (opens in a new tab)
Input typestext, image, audio, video dev.meta.ai (opens in a new tab)
Output typestext
WeightsOpen dev.meta.ai (opens in a new tab)816B MoE, 42B active
ReasoningYes models.dev (opens in a new tab)
Tool useYes models.dev (opens in a new tab)
Artificial Analysis index25 (xhigh) artificialanalysis.ai (opens in a new tab)
Output speed139 tokens/s artificialanalysis.ai (opens in a new tab)
Time to first token0.73 s artificialanalysis.ai (opens in a new tab)
Reasoning levels–
Lab benchmark claims–
Limitations
  • Needs a multi-GPU server to self-host

Tools and MCP connectors that fit

Meta does not document calling MCP servers from its own API. You can still connect tools through an agent or framework. Browse AI tools

Similar alternatives

Same type, closest on quality index and blended price. A similarity, not a ranking.

Compare Muse Spark Open with Qwen3.8 27B and Nemotron 3.5 Super VL

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