Meta Llama: Muse Ember
meta/muse-ember
Try Muse Ember for free in your browser, and add it to your app for free with Puter.js AI API.
Try it free Add to your app// npm install @heyputer/puter.js
import { puter } from '@heyputer/puter.js';
puter.ai.chat("Explain quantum computing in simple terms", {
model: "meta/muse-ember"
}).then(response => {
document.body.innerHTML = response.message.content;
});
<html>
<body>
<script src="https://js.puter.com/v2/"></script>
<script>
puter.ai.chat("Explain quantum computing in simple terms", {
model: "meta/muse-ember"
}).then(response => {
document.body.innerHTML = response.message.content;
});
</script>
</body>
</html>
Model Card
Muse Ember is Meta's smallest and most efficient model, released on November 9, 2026. It has a 1,048,576-token context window, accepts text, image, audio, and video input, and returns text.
Meta built it for repetitive agent work such as tool calls, coding subtasks, routing, document extraction, and operating a computer from screenshots. Meta reports 37.8% on AutomationBench-AA (Claude Haiku 5.5 scores 13.9%, GPT-6 Luna 20.2%) and 40.9% on Terminal-Bench 4.0. Haiku 5.5 scores higher on FrontierCode 2.0-AA. Artificial Analysis gives it an Intelligence Index score of 36, against 37 for Muse Spark 1.3. These results are vendor-reported.
It suits developers who run high-volume agent subtasks at low cost, with a larger model such as Muse Wonder handling planning.
Context Window 1M
tokens
Max Output 944K
tokens
Input Cost $0.1
per million tokens
Output Cost $0.5
per million tokens
Input text, image, video, file, audio
modalities
Tool Use Yes
Release Date Nov 9, 2026
Output Speed 467
tokens / sec
Latency 4.74s
time to first token
Try Muse Ember for free
Try Muse Ember instantly in your browser.
This playground uses the Puter.js AI API — no API keys or setup required.
Benchmarks
How Muse Ember performs on standard evaluations.
Find other Meta Llama models →
Muse Spark Open
Muse Spark Open is an open-weight multimodal model from Meta, released on October 15, 2026. It is a mixture-of-experts model with 816B total and 42B active parameters and a 1,048,576-token context window. It accepts text, image, video, and audio input and returns text. It is aimed at agentic and tool-use work. Meta reports that it leads the open models it compared against on the agentic benchmarks MCP-Atlas and JobBench, and that it trails some closed Chinese models such as Kimi K3 and GLM 5.3 on the coding benchmark Terminal-Bench 2.1. These results are vendor-reported. It supports tool calling, structured output, and configurable reasoning effort. It suits developers who want an agent-capable model with open weights from a US lab.
ChatMuse Wonder
Muse Wonder is a multimodal agent model from Meta Superintelligence Labs, built on Muse Spark and released on October 12, 2026. It accepts text, images, video, audio, and PDF input, returns text, and has a 1,048,576-token context window. It is designed for long, multi-step agent work such as coding, legal and financial documents, and tasks across several apps. It supports tool calling, structured output, and configurable reasoning effort. Meta reports 78.8 on DeepSWE 1.1 and 53.1 on SWE-Marathon, and Artificial Analysis gives it an Intelligence Index score of 52, up from 48 for Muse Spark 1.3. Its per-token price is below Claude Fable 5.1 ($10 input, $50 output), though Claude Opus 5.5 scores higher on the index and on OSWorld.
ChatMuse Spark 1.3
Muse Spark 1.3 is Meta Superintelligence Labs' follow-up to the coding-focused Muse Spark 1.2, released on September 2, 2026. It targets long-horizon agentic work, multi-agent orchestration, and extended multi-step coding tasks. On Meta's own harness it scored 88.8% on Terminal-Bench 2.1, level with OpenAI's GPT-5.6 Sol, and 75.4% on DeepSWE 1.1, up from 59.3% for 1.2. These are vendor-reported numbers, not yet independently verified. Artificial Analysis gives it an Intelligence Index score of 48, up from 40 for Muse Spark 1.2, and Anthropic's Opus 5 still leads it on several agent benchmarks. It keeps the 1,048,576-token context window, text, image, video, and PDF input, and tool calling from earlier versions, at the same $1.25 per million input and $4.25 per million output token pricing.
Frequently Asked Questions
You can access Muse Ember by Meta Llama through Puter.js AI API. Include the library in your web app or Node.js project and start making calls with just a few lines of JavaScript — no backend and no configuration required. You can also use it with Python or cURL via Puter's OpenAI-compatible API.
Muse Ember is free to try with a Puter account. Every account includes a free AI allowance, and you can chat with it in the playground on this page. You can upgrade your account anytime for a larger allowance.
Muse Ember is free to integrate using the Puter.js AI API. With the User-Pays Model, you can add AI to your app for $0, since users cover their own AI usage through their Puter account.
| Price per 1M tokens | |
|---|---|
| Input | $0.1 |
| Output | $0.5 |
Muse Ember was created by Meta Llama and released on Nov 9, 2026.
Muse Ember supports a context window of 1M tokens. For reference, that is roughly equivalent to 2,097 pages of text.
Muse Ember can generate up to 944K tokens in a single response.
Muse Ember accepts the following input types: text, image, video, file, audio. It produces: text.
Yes, Muse Ember supports tool use (function calling), allowing it to interact with external tools, APIs, and data sources as part of its response flow.
Muse Ember scores 36.0 on the Artificial Analysis Intelligence Index, outperforming 64% of tracked models.
Yes — the Muse Ember API works with any JavaScript framework, Node.js, or plain HTML through Puter.js. Just include the library and start building. See the documentation for more details.
Add Muse Ember to your app for free
Developers can integrate Muse Ember for free using the Puter.js AI API.
With the User-Pays Model, each user covers their own AI usage instead of the developer.