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Developer tools · MMeta

Editorial

Muse Ember

MMeta's model for repeated agent steps, released November 9, 2026. Model id muse-ember-1.0. $0.10 input and $0.50 output per million tokens up to 200,000 input tokens.

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Pricing

50 output, for prompts up to 200,000 input tokens. 50. Muse Code plans on the same page are $5, $15, $50, and $200 a month. The docs say Ember is included on pay-as-you-go and every plan.

Vendor pricing checked November 10, 2026.

Pricing source

Best fit

APIs, gateways, and infrastructure for people building software. Listed use: coding, agents. Listed audience: Builders.

Quick facts

Category
Developer tools
Pricing
Paid
Status
Editorial
Starting price
$0.10 per million input tokens
Billing
Usage-based
Vendor
Meta
Last verified
November 10, 2026
Use
coding, agents

Features

  • Model id muse-ember-1.0 on the MMeta Model API and in Muse Code
  • Text, image, video, audio, and PDF in; text out; 1,048,576-token context
  • Tool calling, structured output, computer use, and search grounding on the docs

Pricing

API, read November 10, 2026: $0.10 per million input tokens, $0.004 cached input, and $0.50 output, for prompts up to 200,000 input tokens. Over that line: $0.30, $0.012, and $1.50. Muse Code plans on the same page are $5, $15, $50, and $200 a month. The docs say Ember is included on pay-as-you-go and every plan.

Paid

Pricing page

Muse Ember is Meta’s worker model for repeated agent steps, released November 9, 2026 (research post; model page). The model id is muse-ember-1.0. Prompts up to 200,000 input tokens are $0.10 per million input tokens, $0.004 cached, and $0.50 output. The score table, the harness split, and the Haiku and Luna comparison are What is Muse Ember?.

The docs, read November 10, 2026, say to keep Muse Wonder or Muse Spark on the planning loop and to hand bounded subtasks to Ember. Calls go to https://api.meta.ai/v1. An OpenAI-compatible client changes base_url and the model id. How a harness chooses the next model is How do AI agents work?. Shipping runtimes are Best AI agent harness.

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agentscodingapimodels

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Compare yourself with the top 3 in Developer tools

Muse Ember is not a row on Best AI agent evaluation tools yet. The first rows of that sourced table are below. Order is not a quality score. Last verified November 2026.

  1. Pydantic Evals
  2. LangSmith

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From our reports

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  • Guide

    What Is Muse Ember?

    Muse Ember, released November 9, 2026, is Meta’s model for repeated agent steps. 5.