Meta's Muse Ember Tops Code Arena WebDev at $0.04 Per Task, Beating Haiku and Luna on Cost
arena · x · 2026-11-10
LMArena announced that Meta's Muse Ember (Max) landed on Code Arena: WebDev as the highest-performing small model at 1608 pts, beating Anthropic Claude Haiku 5.5 (High, 1595) and OpenAI GPT-6 Luna (Max, 1578).
Key numbers:
- All three share identical API pricing ($0.10/$0.50 per M input/output tokens), yet Ember's median cost per task is $0.03—2× lower than Luna ($0.06) and 3.7× lower than Haiku ($0.11)
- That puts Ember alone on the Pareto frontier; neither rival makes it
- In LMArena's testing, Ember generated 20+ websites and animations in one go, averaging 2 minutes and $0.04 per task
Related event: Meta Muse Ember Tops Code Arena WebDev at ~$0.04 per Site(2 posts)→
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