Meta releases Muse Ember, a new lightweight model for agent execution

What happened

Meta's Superintelligence Lab released Muse Ember on November 9, 2026 — the smallest and most efficient model in the Muse family, optimized for high-volume repetitive agent subtasks.

Context and impact

Muse Ember is designed as a cheap "worker" model in multi-agent pipelines, complementing larger frontier models. At $0.10 per million input tokens it makes large-scale agent deployments economically viable for enterprises.

Details

• Pricing: $0.10 / 1M input, $0.50 / 1M output tokens
• Use cases: tool calls, routing, extraction, document processing, coding subtasks
• Released by Meta Superintelligence Lab (rebranded from FAIR + GenAI)
• Released same day as Anthropic Fable 5.2 — timing appears deliberate