Meta's Muse Ember: OpenRouter and OpenCode availability, Design Arena HTML ranking
Overview
Meta's Muse Ember is now available on OpenRouter and in OpenCode, according to OpenRouter and OpenCode posts and an account of Alexandr Wang.
OpenRouter lists text, images, video and audio as inputs and suggests pairing Muse Ember with a frontier model such as Muse Wonder, which handles planning while Muse Ember runs bounded sub-tasks in coding agents.
Design Arena ranks Muse Ember 10th overall on its Overall HTML leaderboard with an Elo of 1345, according to its post. The post says Muse Ember averages 33 seconds per generation, 9.5 times faster than the previous frontier models it replaced, and costs $0.10 per 1M input tokens and $0.50 per 1M output tokens, at least 34 times cheaper on average. The OpenRouter reports do not give context length or other performance figures.
Written by AI from the articles below · updated Nov 9, 4:19 PM ET
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Developments
3 developments
- Nov 9, 2:56 PM ET · 1 articleMeta's Muse Ember becomes available in OpenCodeAlexandr Wang: Meta's Muse Ember is now available in OpenCode
- Nov 9, 1:33 PM ET · 3 articlesMuse Ember becomes available on OpenRouterAlexandr Wang: Meta's Muse Ember now available on OpenRouter
- Nov 9, 1:05 PM ET · 2 articlesDesign Arena ranks Muse Ember 10th overallDesign Arena: Meta's Muse Ember ranks 10th on Design Arena HTML leaderboard
Article timeline
The articles in this story. Times are ET.
Alexandr Wang@alexandr_wangOfficialMeta's Muse Ember now available on OpenRouterAIAlexandr Wang says Muse Ember is available on OpenRouter. OpenRouter describes Muse Ember as a sub-task model that coding agents can use after a frontier model such as Muse Wonder plans the work.
Alexandr Wang@alexandr_wangOfficialMeta's Muse Ember is now available in OpenCodeAIAlexandr Wang, who owns the account, invites readers to try Muse Ember on OpenCode. The @opencode account says Meta's Muse Ember is now available in OpenCode.
Alexandr Wang@alexandr_wangXMeta's Muse Ember ranks 10th on DesignArena's HTML leaderboardAIDesignArena says Meta's Muse Ember ranks 10th overall on its Overall HTML leaderboard with an Elo of 1345 and takes a spot on the preference-speed Pareto frontier. The post says Muse Ember averages 33 seconds per generation, 9.5× faster than the previous frontier models it replaced, and costs $0.10 per 1M input tokens and $0.50 per 1M output tokens, at least 34× cheaper on average.
OpenRouter@OpenRouterOfficial
OpenRouter@OpenRouterOfficialMeta's Muse Ember is now live on OpenRouterAIMeta's Muse Ember is now available on OpenRouter, according to the OpenRouter account. OpenRouter suggests pairing a frontier model such as Muse Wonder for planning with Muse Ember for bounded sub-tasks in coding agents.
DesignArena@DesignArenaOfficialMeta's Muse Ember ranks 10th on Design Arena HTML leaderboardAIDesign Arena ranks Meta's Muse Ember 10th overall on its Overall HTML leaderboard with an Elo of 1345. The post says Muse Ember averages 33 seconds per generation, 9.5 times faster than the prior Pareto frontier models it displaced, and costs $0.10 per 1M input tokens and $0.50 per 1M output tokens.

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