Model facet · Providers

Muse Spark 1.3 Providers: One Upstream, Four Routes

Muse Spark 1.3 lists at $1.25 input and $4.25 output per 1M tokens on the Meta first-party route exposed through OneInfer. Meta Model API, Muse Code CLI, OpenRouter and ModelsLab all expose the same upstream checkpoint, so the route count is four but the inference backend count is one.

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Tracked providers

ProviderInput /1M tokensOutput /1M tokensProvenance
Meta$1.250$4.250vendor reported

What is Muse Spark 1.3?

Muse Spark 1.3 is Meta's closed-weight multimodal agentic model released on 2 September 2026. It accepts text, image, audio and video, returns text, and resolves to Meta as its single upstream owner because no other party can independently deploy the weights.

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Why route count is not provider diversity

Because weights are closed, no route can independently deploy the checkpoint. Outages, policy changes and model updates therefore retain a common Meta dependency.

Frequently asked questions

Can I run Muse Spark 1.3 on OneInfer?

No. As of 3 September 2026, Muse Spark 1.3 is proprietary, has no downloadable weights, and resolves to Meta as its single upstream provider. OneInfer publishes this independent reference without claiming deployment availability.

How many Muse Spark 1.3 providers are there?

There are four verified access routes in this source set, but they ultimately resolve to one upstream model owner: Meta.

Put Muse Spark 1.3 to work

Fund a controlled evaluation, send a reference frame or document, and measure quality and cost on your own workload.

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