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by Meta AI

Meta: Muse Spark 1.3 Contributor.

multimodal closed 1M ctx
Cheapest input
$0.1/M
on OpenRouter
Cheapest output
$0.2/M
on OpenRouter
Hosted equiv.
~$0.07/hr
@ 100 tok/s on OpenRouter

Muse Spark 1.3 Contributor is the cost-efficient contributor tier of Meta’s multimodal reasoning model for experimentation, learning, and early-stage agentic, multi-agent, and coding workflows. It is designed to track in

Hosted API only

No self-host path — closed weights.

Meta: Muse Spark 1.3 Contributor's weights aren't published. Use it via the access providers below.

Where to use it

Cheapest hosted endpoints.

Provider Access $/M in $/M out
OpenRouter api aggregator $0.1 $0.2 Launch ↗
FAQ

Frequently asked.

How do I run Meta: Muse Spark 1.3 Contributor?
Meta: Muse Spark 1.3 Contributor is a closed-source API model. The cheapest way to access it is through the API providers listed on this page (direct API, aggregators, and hosted chat UIs).
Where can I access Meta: Muse Spark 1.3 Contributor?
Meta: Muse Spark 1.3 Contributor is available via OpenRouter. Each access option lists its own pricing (per million tokens or hourly hosting).
How much does it cost to run Meta: Muse Spark 1.3 Contributor?
API pricing starts at $0.1/M input tokens and $0.2/M output tokens. Self-hosting cost depends on the GPU you rent — see the Run It Yourself tab.
Is Meta: Muse Spark 1.3 Contributor open-source or proprietary?
Meta: Muse Spark 1.3 Contributor is a proprietary model from Meta AI. Access is API-only — there are no public weights to download.