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Muse Spark Open

Created by

Meta

Release date:Oct 16, 2026meta/muse-spark-open
Release date:Oct 16, 2026meta/muse-spark-open

Meta's open-weight 816B mixture-of-experts model with 42B active parameters for multimodal reasoning, coding, and agentic tool use.

Meta's open-weight 816B mixture-of-experts model with 42B active parameters for multimodal reasoning, coding, and agentic tool use.

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1,048,576 tokens

Modalities

Input:

Text

Image

Audio

Video

Output:

Text

Price from

$1.25 input · $4.25 output
/1M tokens via Baseten (Global)

Benchmarks

Not listed

Artificial Analysis indexes. Same model on every route.

Capabilities

Available across listed offers. Support varies by route.

Reasoning

Tool calling

Streaming

Vision

Providers & pricing

Compare every listed route. Open route details for model IDs, endpoints, service tiers and all pricing conditions.

Provider
Region
Input
Output
Cached input
Zero data retention
Route ID
Nebius
Global
$1.25/1M tokens
$4.25/1M tokens
Not listed
?
nebius/meta-models/muse-spark-open
Baseten
Lowest price
Global
$1.25/1M tokens
$4.25/1M tokens
$0.15/1M tokens
?
baseten/muse-spark-open
Provider
Region
Input
Output
Cached input
Zero data retention
Route ID
Nebius
Global
$1.25/1M tokens
$4.25/1M tokens
Not listed
?
nebius/meta-models/muse-spark-open
Baseten
Lowest price
Global
$1.25/1M tokens
$4.25/1M tokens
$0.15/1M tokens
?
baseten/muse-spark-open
Provider
Region
Input
Output
Cached input
Zero data retention
Route ID
Nebius
Global
$1.25/1M tokens
$4.25/1M tokens
Not listed
?
nebius/meta-models/muse-spark-open
Baseten
Lowest price
Global
$1.25/1M tokens
$4.25/1M tokens
$0.15/1M tokens
?
baseten/muse-spark-open

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