# Introducing Our Smallest, Most Efficient Model: Muse Ember

Source: [Simon Willison's Weblog](https://simonwillison.net/2026/Nov/10/muse-ember/) · 2026-11-10 · AI
Page: https://themorning.dev/story/introducing-our-smallest-most-efficient-model-muse-ember-fabe838d73f55c38
Kind: release · Impact: medium

## In brief

- Meta released Muse Ember on November 9, 2026, describing it as its smallest and most efficient AI model.
- Pricing is $0.10 per million input tokens and $0.50 per million output tokens, with a 1-million-token context window.
- Meta positions Muse Ember in the same category as Claude Haiku and GPT Luna, aimed at complex reasoning execution and work agents repeat.

## Why it matters

A small, cheap model with a 1-million-token context window could lower the cost of running repeated agent steps, making it a candidate to compare against other small models on price and capability.

## Timeline

- 2026-11-09: Meta released Muse Ember, its smallest AI model

## Coverage

- [Introducing Our Smallest, Most Efficient Model: Muse Ember](https://simonwillison.net/2026/Nov/10/muse-ember/) — Simon Willison's Weblog, 2026-11-10
- [Meta's Muse Ember Does Haiku's Job for a Third of the Cost — Here's the Catch](https://dev.to/paullovelace/metas-muse-ember-does-haikus-job-for-a-third-of-the-cost-heres-the-catch-5bn0) — DEV Community: ai, 2026-11-10
- [Meta's New AI Costs 10 Cents — and That's Why Your Next App Will Have an Agent in It](https://dev.to/shakeelahmed/metas-new-ai-costs-10-cents-and-thats-why-your-next-app-will-have-an-agent-in-it-ej5) — DEV Community: ai, 2026-11-10

Tags: ai-models, meta, llm-pricing, ai-agents, small-models

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Brief generated by AI (claude-haiku-5-5) from the reporting listed under Coverage. Headlines belong to their publishers. The Morning Dev – https://themorning.dev