Muse Spark Open

Muse Spark Open is an 816B total / 42B active open-weight multimodal reasoning model from Meta for coding and long-horizon agentic work, with 1M-token context.

meta/muse-spark-open
Organization
Meta
Family
muse
Providers
15
Context
1,048,576
Output limit
131,072
Knowledge
2026-01-04
Release
2026-10-15
Updated
—
Weights
Open
Input
text, image, video, audio/wav, audio/mpeg
Output
text
Capabilities
—

Providers

Compare every cataloged offer for this model, including its provider, route, token limits, price, and capabilities.

16 offers · USD per million tokens
ProviderModel IDContextOutputInput / output · 1MReasoningToolsStructuredDetails
Cloudflare AI Gateway
meta/muse-spark-open
1,040,000131,072— / ————
View
Eden AI
fireworks_ai/accounts/fireworks/models/muse-spark-open
1,048,576131,072— / ————
View
Eden AI
nebius/meta-models/muse-spark-open
1,048,576131,072— / ————
View
Fireworks AI
accounts/fireworks/models/muse-spark-open
1,048,576131,072— / ————
View
Kilo Gateway
meta/muse-spark-open
1,048,576943,718— / ————
View
Merge Gateway
meta/muse-spark-open
1,048,576262,144— / ————
View
Modal
meta-models/Muse-Spark-Open-816B-A42B
1,048,576131,072— / ————
View
NanoGPT
meta/muse-spark-open
1,048,576131,072— / ————
View
Nebius Token Factory
meta-models/muse-spark-open
1,048,5761,048,576— / ————
View
Ollama Cloud
muse-spark-open
1,048,576131,072— / ————
View
OpenRouter
meta/muse-spark-open
1,048,576943,718— / ————
View
Prime Inference
meta/muse-spark-open
1,048,576943,718— / ————
View
Requesty
muse-spark-open
1,048,576131,072— / ————
View
Together AI
meta-models/Muse-Spark-Open-816B-A42B
1,048,576131,072— / ————
View
Venice AI
muse-spark-open
1,048,576131,072— / ————
View
Vercel AI Gateway
meta/muse-spark-open
1,048,5761,048,576— / ————
View

Prices and limits apply to each offer. A dash means the value is not provided. OpenRouter offers show the hosting provider and routing channel separately.

Pricing

Compare token rates and cache charges across available routes and hosting configurations.

USD per million tokens
Input from—Per 1M input tokens
Output from—Per 1M output tokens
Available offers16Across 15 providers

Lowest listed input and output prices across the offers above; they may belong to different providers. These are base rates, before conditional pricing, discounts or additional fees.

Frequently asked questions

Answers based on the model metadata and serving offers currently in the catalog.

How much does Muse Spark Open cost?

Listed rates start at — per million input tokens and — per million output tokens. Prices vary by provider and configuration; see Pricing for details.

Which providers offer Muse Spark Open?

There are 16 cataloged offers across 15 providers. Compare model IDs, prices and limits in Providers.

What is the context window?

The cataloged model context is 1,048,576 tokens. Each serving endpoint may apply a different limit.

Does it support tools and structured output?

Tool calling: Not reported. Structured output: Not reported. Support can vary by endpoint.

Resources

Muse Model License
Catalog history · 2 recorded revisions

Metadata observations since this model was first cataloged. These are not model release versions.

  • · 5676f939afd2
  • · bc6ce4efe02a