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Muse Ember 1.0

NEW
MetaReleased Nov 9, 2026meta/muse-ember-1.0
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Muse Ember is Meta's smallest and most efficient Muse model, built for high-volume agentic execution: sub-agent tasks, tool calls, routing, extraction, coding subtasks and long-document parsing. It accepts text, images, video, audio and PDF documents and returns text, with a 1,048,576-token context window and up to 524,288 output tokens. Reasoning effort is configurable from minimal to max (default max), with automatic prompt caching and built-in web search grounding.

Context
1.05M
Max output
524K
Input /1M
$0.10
Output /1M
$0.50
Blended /1M
$0.20
AcceptsTextImageVideoAudioFilesProducesTextInstruct type none

Providers

FastRouter routes your requests to this provider. You can also bring your own key.

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Meta
meta
Input /1M$0.10
Output /1M$0.50
Context1.05M
Max output524K
Latency—
Throughput—
Supports tool callingSupports reasoning

Supported parameters

Request parameters you can send with this model.

Parameter
Type
Meta
Core (Sampling & basic generation)
temperatureControls randomness of output.
number
0 to 2
top_pNucleus sampling threshold.
number
0 to 1
Reasoning (Reasoning Controls)
include_reasoningInclude reasoning trace in the response.
-
-
reasoningProvider-specific reasoning configuration.
object
Tool Use (Function Calls & Tools)
tool_choiceHow the model should use tools.
string
"auto", "required", "none"
toolsTool/function definitions available to the model.
array
Request Behaviour (Request Config)
streamStream partial responses as they are generated.
bool
true | false
Other
max_output_tokens
number
1 to 524288

Performance

Median throughput and time to first token per provider over the last week.

Throughput

Latency

Make your first API call

OpenAI-compatible. Point your SDK at FastRouter, or call the API directly.

Full API docs
Replace <FASTROUTER_API_KEY> with your key · Get your key →Install
OpenAI SDKHTTP
from openai import OpenAI
client = OpenAI(
base_url="https://api.fastrouter.ai/api/v1", # FastRouter base URL
api_key= "<FASTROUTER_API_KEY>", # Replace with your FastRouter API key
)
completion = client.chat.completions.create(
model="meta/muse-ember-1.0", # Replace with your model ID
messages=[
{ "role": "user", "content": "What is the meaning of life?" }
]
)
print(completion.choices[0].message.content)

Frequently asked questions

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Model scores sourced from ArtificialAnalysis