IBM Granite 4.2 30B vs Muse Spark Open: Specs & Benchmark Comparison
IBM Granite 4.2 30B is developed by IBM, while Muse Spark Open comes from Meta. IBM Granite 4.2 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 IBM Granite 4.2 30B.
The two models share 3 published benchmarks. Muse Spark Open leads on 3 of them. The widest gaps are on Terminal-Bench 2.1, where Muse Spark Open scores 76.4% against 29.2%; GPQA, where Muse Spark Open scores 89.0% against 66.4%. Averaged across everything we track, IBM Granite 4.2 30B sits at 62.4% 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 IBM Granite 4.2 30B, so pricing and context cannot be compared directly.
| Characteristic | IBM Granite 4.2 30B | Muse Spark Open |
|---|---|---|
| Company | IBM | Meta |
| Release Date | August 25, 2026 | October 15, 2026 |
| Parameters | 30B | 816B |
| Multimodal | No | Yes |
| Context (input) | — | 1.0M |
| Context (output) | — | 1.0M |
| Input Price / 1M | — | $1.25 |
| Output Price / 1M | — | $4.25 |
| Average Score | 62.4% | 62.3% |
| Benchmarks | ||
| Terminal-Bench 2.1 | 29.2% | 76.4% |
| GPQA | 66.4% | 89.0% |
| SciCode | 38.8% | 58.5% |
Visual Benchmark Comparison
Verdict
Muse Spark Open leads in 1 out of 2 comparison categories.
Both models show comparable average scores: IBM Granite 4.2 30B — 0.6, Muse Spark Open — 0.6.
Muse Spark Open is newer: released 10/15/2026 vs 8/25/2026.
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Frequently Asked Questions
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The IBM Granite 4.2 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 IBM Granite 4.2 30B or Muse Spark Open page. See also the complete list of AI model comparisons.