Mellum2-12B-A2.5B-Thinking vs Muse Spark 1.1
Head-to-head comparison across 2benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
Verdict
Muse Spark 1.1 leads for most workloads.
Based on BenchLM composite scores, July 2026.
Mellum2-12B-A2.5B-Thinking
59
Muse Spark 1.1
78
Pick Muse Spark 1.1 if you want the stronger benchmark profile. Mellum2-12B-A2.5B-Thinking only becomes the better choice if coding is the priority.
Category Radar
Head-to-Head by Category
Category Breakdown
| Benchmark | Mellum2-12B-A2.5B-Thinking | Δ | Muse Spark 1.1 |
|---|---|---|---|
| Coding | 69.9 | ← 8.4 | 61.5 |
| Knowledge | 57.6 | → 4.5 | 62.1 |
| Agentic | — | — | 80.4 |
| Multimodal | — | — | 88.4 |
| Inst. Following | 76.5 | — | — |
Operational Comparison
Mellum2-12B-A2.5B-Thinking
Muse Spark 1.1
N/A
N/A
N/A
N/A
N/A
N/A
128K
1M
Quick Verdict
Pick Muse Spark 1.1 if you want the stronger benchmark profile. Mellum2-12B-A2.5B-Thinking only becomes the better choice if coding is the priority.
Muse Spark 1.1 is clearly ahead on the provisional aggregate, 78 to 59. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Muse Spark 1.1's sharpest advantage is in knowledge, where it averages 62.1 against 57.6. Mellum2-12B-A2.5B-Thinking does hit back in coding, so the answer changes if that is the part of the workload you care about most.
Muse Spark 1.1 gives you the larger context window at 1M, compared with 128K for Mellum2-12B-A2.5B-Thinking.
Benchmark Deep Dive
Frequently Asked Questions (3)
Which is better, Mellum2-12B-A2.5B-Thinking or Muse Spark 1.1?
Muse Spark 1.1 is ahead on BenchLM's provisional leaderboard, 78 to 59.
Which is better for knowledge tasks, Mellum2-12B-A2.5B-Thinking or Muse Spark 1.1?
Muse Spark 1.1 has the edge for knowledge tasks in this comparison, averaging 62.1 versus 57.6. Mellum2-12B-A2.5B-Thinking stays close enough that the answer can still flip depending on your workload.
Which is better for coding, Mellum2-12B-A2.5B-Thinking or Muse Spark 1.1?
Mellum2-12B-A2.5B-Thinking has the edge for coding in this comparison, averaging 69.9 versus 61.5. Muse Spark 1.1 stays close enough that the answer can still flip depending on your workload.
Related Comparisons
The AI models change fast. We track them for you.
For engineers, researchers, and the plain curious — a weekly brief on new models, ranking shifts, and pricing changes.
Free. No spam. Unsubscribe anytime.