Muse Glimmer-30B vs Muse Spark Open: Specs & Benchmark Comparison
Muse Glimmer-30B and Muse Spark Open both come from Meta, Muse Glimmer-30B was released in August 2026, and Muse Spark Open followed 2 months later in October 2026. Muse Spark Open is the larger model at roughly 816 billion parameters, against 30 billion for Muse Glimmer-30B.
The two models share 5 published benchmarks. Muse Spark Open leads on 5 of them. The widest gaps are on Terminal-Bench 2.1, where Muse Spark Open scores 76.4% against 51.7%; SciCode, where Muse Spark Open scores 58.5% against 43.6%. Averaged across everything we track, Muse Glimmer-30B sits at 65.1% and Muse Spark Open at 62.3%.
Muse Spark Open is available through an API at $1.25 per million input tokens with a 1M-token context window. We do not track a hosted API for Muse Glimmer-30B, so pricing and context cannot be compared directly.
| Characteristic | Muse Glimmer-30B | Muse Spark Open |
|---|---|---|
| Company | Meta | Meta |
| Release Date | August 10, 2026 | October 15, 2026 |
| Parameters | 30B | 816B |
| Multimodal | Yes | Yes |
| Context (input) | — | 1.0M |
| Context (output) | — | 1.0M |
| Input Price / 1M | — | $1.25 |
| Output Price / 1M | — | $4.25 |
| Average Score | 65.1% | 62.3% |
| Benchmarks | ||
| Terminal-Bench 2.1 | 51.7% | 76.4% |
| SciCode | 43.6% | 58.5% |
| OSWorld-Verified | 65.9% | 80.4% |
| MCP Atlas | 75.5% | 89.2% |
| GPQA | 83.5% | 89.0% |
Visual Benchmark Comparison
Verdict
Muse Spark Open leads in 1 out of 2 comparison categories.
Both models show comparable average scores: Muse Glimmer-30B — 0.7, Muse Spark Open — 0.6.
Muse Spark Open is newer: released 10/15/2026 vs 8/10/2026.
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Frequently Asked Questions
Which is better for coding — Muse Glimmer-30B or Muse Spark Open?
Which model is cheaper — Muse Glimmer-30B or Muse Spark Open?
Which has a larger context window — Muse Glimmer-30B or Muse Spark Open?
The Muse Glimmer-30B and Muse Spark Open comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Muse Glimmer-30B or Muse Spark Open page. See also the complete list of AI model comparisons.