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SwapMuse Ember
Meta's new small, low-cost model for running AI Agent: An AI that doesn't just answer but takes steps on its own to finish a task: searching the web, running code or using apps. that carry out tasks, priced to undercut rivals for developers.
Release page →Muse Spark Open
Meta's Muse Spark Open is a text model for writing and answering questions that is free to download under restricted use terms.
Release page →The basics
Released
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Knowledge cutoff
The latest events it learned about
Download
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How they score
Combined test score
Epoch Capabilities Index · Epoch AI
Only Muse Spark Open is in this ranking.
Building apps, by people's votes
LMArena WebDev · LMArena
Only Muse Spark Open is in this ranking, which lists the most-voted models.
Green marks the better of the two on each row, red the other. Rows where one side isn't listed, or where the gap is too close to call, stay plain.
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Rankings from LMArena and Epoch AI, both CC BY 4.0, updated . Developer prices, context windows and knowledge cutoffs from the labs' own listings on models.dev and from OpenRouter. The app links go to each maker's own app when no source says exactly where the model is available.