Muse Spark 1.3 vs Muse Glimmer

Glimmer trades substantial index performance for downloadable 30B Apache 2.0 weights.

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Last verified 3 September 2026.

Use Muse Spark 1.3 in 4 steps

Step 1 of 4

Try Muse Spark 1.3 in the OneInfer playground without writing code, or create an API key in the Console to call it from your app.

export ONEINFER_API_KEY="your-api-key"

Dated comparison: 3 September 2026

Metric	Muse Spark 1.3 (xhigh)	Muse Glimmer
AA Intelligence Index	61	35
Output tokens/s	186	Not reported
Weights	Closed	Open

How to choose

This is a deployment-control comparison, not a claim that the two models have equal capabilities.

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Comparison limits

These figures come from the Artificial Analysis leaderboard and Meta's Muse Spark 1.3 launch post, as of 3 September 2026. They are not a OneInfer benchmark. Effort tiers are shown explicitly. Output speed does not measure full task completion time.

Frequently asked questions

How current is this information?

This page reflects sources checked on 3 September 2026. Verify current access, pricing and provider terms before an evaluation.

Put Muse Spark 1.3 to work

Fund a controlled evaluation, test it on your own inputs, and measure quality and cost on your workload.

Create account & add credits Run this with Muse Spark 1.3