How much does Muse Ember cost?

Muse Ember costs $0.10/M input tokens and $0.50/M output tokens, with separate rates for Cache Read at $0.004/M tokens.

What is the context length of Muse Ember?

Muse Ember has a 1,048,576 token context window. It supports up to 524,288 completion tokens.

Does Muse Ember support tool calling and structured outputs?

Yes. Muse Ember accepts tools and tool_choice for function calling. It also supports structured outputs via a JSON schema in response_format.

What inputs and outputs does Muse Ember support?

Muse Ember accepts text, images, video, files such as PDFs, and audio as input and returns text.

Which providers serve Muse Ember?

Muse Ember is served by 2 providers on OpenRouter: Google Vertex and Meta. Requests are routed to the best available provider, with automatic failover to the others, and you can pin or exclude providers with provider routing.

When was Muse Ember released?

Muse Ember was released on November 9, 2026.

Meta: Muse Ember

meta/muse-ember

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Muse Ember is the smallest and most efficient model from Meta that’s designed for complex reasoning execution and the work agents repeat all day: tool calls, coding agent subtasks, routing, extraction, and long document parsing.

Muse Ember accepts text, images, video, audio, and PDF documents and returns text, with a 1M-token context window.

Modalities

In / out price

$0.10 / $0.50per 1M

Context

1.0M

Released

Nov 9, 2026

Providers

Different companies host the same model. OpenRouter routes your request to one of them based on the routing mode you pick: Balanced (price + speed), Nitro (fastest), or Floor (cheapest).

Latency / throughput


	$0.10	$0.50	$0.004	1.98s	256 tok/s	94.01%
	$0.10	$0.50	$0.004	1.88s	221 tok/s	100.00%

Input $0.10Output $0.50
256 tok/s94.01% uptime
Input $0.10Output $0.50
221 tok/s100.00% uptime

Pricing

The average price customers actually pay for this model, next to the prices providers post. Caching and discounts mean the price actually paid is often well below the listed one.

Weighted average

Input

$0.02437/M tokens

Output

$0.4998/M tokens

Muse Ember — Price history

Price history

No effective price data for this selection

		$0.0225	$0.500	80.7%	27.1%
		$0.0250	$0.500	78.1%	72.9%

Effective in $0.0225Effective out $0.500
Token share
27.1%
Effective in $0.0250Effective out $0.500
Token share
72.9%

Uptime

Uptime is the percentage of the past 3 days that at least one provider was responding to requests. Availability is the percentage of time that inference was successfully served. OpenRouter continuously monitors and uses the next-best provider when one returns an error.

Uptime (3d)

100.00%

Availability (3d)

98.87%

Availability over the last 3 days

Last 72 hours

Availability 98.87%

3 Days Ago2 Days AgoYesterdayNow

Availability over the last 24 hours

OpenRouter Availability

98.56%

Without Routing

91.40%

When an error occurs in an upstream provider, we can recover by routing to another healthy provider, if your request filters allow it. You can access per-provider uptime data programmatically through the Endpoints API. Learn more about our load balancing and provider routing options.

Benchmarks

Scores on standardized evaluations and this model’s own outputs on shared benchmark prompts. Higher percentages are better — and each rank shows where this model lands among the models evaluated on that source.

Benchmark score summary for Meta: Muse Ember (Vals AI)
Source	Benchmark	Score
Vals AI	Muse Ember EMB v1.1	72.2%
Vals AI	Muse Ember Finance Agent v2.1	63.8%
Vals AI	Muse Ember Vals Finance Index	60.9%
Vals AI	Muse Ember HLAB-Vals-1.1	25.0%
Vals AI	Muse Ember Vals Legal Index	75.7%
Vals AI	Muse Ember Legal Research Bench	49.0%
Vals AI	Muse Ember Tax Agent Bench	38.2%
Vals AI	Muse Ember Terminal-Bench 4.0	39.4%
Vals AI	Muse Ember Vals Index	60.5%
Vals AI	Muse Ember Vibe Code Bench v1.1	83.7%

Apps

Public apps that send the most traffic to this model. Good signal for what real production workloads look like — and a hint at which use cases this model is best suited for.

DeepSeek Harness

new

38.1Btokens

Freebuff

Powerful coding models, funded by ads

16.4Btokens

There are many coding agents, but this one is yours.

14.3Btokens

Hermes Agent

Hermes Agent is an open-source, self-improving AI agent by Nous Research that runs persistently with memory across sessions, and builds reusable skills from experience. It comes with 40+ built-in tools, including web search, browser automation, and vision, plus scheduled automations and subagents.

13.2Btokens

Bitbison triage

new

10.6Btokens

Rest of OpenRouter

64.4B

Top 5 Apps

41.5B

Not currently available through EU in-region routing. In-region routing docs

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Meta: Muse Ember

Providers