Model comparison
Muse Spark 1.2 vs Olmo 3.1 32b Think
Muse Spark 1.2 is the stronger model overall, scoring 50.3 to 37.9 on the Noometry Index.
Last verified . 14 shared benchmarks.
Summary
- They share 14 benchmarks with published results for both. Muse Spark 1.2 scores higher in 8 categories and Olmo 3.1 32b Think in 0 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Muse Spark 1.2 leads 51.3 to 25.2.
- Olmo 3.1 32b Think has downloadable open weights; the other is API-only.
Side by side
| Muse Spark 1.2 | Olmo 3.1 32b Think | |
|---|---|---|
| Provider | Meta | Allen Institute for AI (Ai2) |
| Noometry Index | 50.3 | 37.9 |
| Released | 2026-08-05 | — |
| Weights | Proprietary | Open |
| Context window | 1.05M | — |
| Max output | 131K | — |
| Input $ / M tokens | $1.25 | — |
| Output $ / M tokens | $4.25 | — |
| Results tracked | 31 | 15 |
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Category by category
Coding Muse Spark 1.2 leads
Muse Spark 1.2: 49.2 (#51), Olmo 3.1 32b Think: 37.7 (#189)
| Benchmark | Muse Spark 1.2 | Olmo 3.1 32b Think |
|---|---|---|
| LMArena Coding | 1495 | 1291 |
| DeepSWE | 54.9% | — |
| LMArena WebDev | 1533 | — |
| FrontierSWE | 12% | — |
| SciCode | 56.4% | — |
| WeirdML | 60.3% | — |
Agentic & Tool Use Not comparable
Muse Spark 1.2: 29.4 (#87), Olmo 3.1 32b Think: —
| Benchmark | Muse Spark 1.2 | Olmo 3.1 32b Think |
|---|---|---|
| APEX-Agents | 36.4% | — |
| GDP.pdf | 16% | — |
Reasoning Muse Spark 1.2 leads
Muse Spark 1.2: 51.3 (#34), Olmo 3.1 32b Think: 25.2 (#150)
| Benchmark | Muse Spark 1.2 | Olmo 3.1 32b Think |
|---|---|---|
| LMArena Hard Prompts | 1486 | 1272 |
| SimpleBench | 74.5% | — |
| NYT Connections (extended) | 79.2% | — |
| CritPt | 17.7% | — |
| DTBench | 94.7% | — |
| LMCA | 48.4% | — |
| Epoch Capabilities Index | 154.87 | — |
Math Muse Spark 1.2 leads
Muse Spark 1.2: 46.4 (#70), Olmo 3.1 32b Think: 36.3 (#168)
| Benchmark | Muse Spark 1.2 | Olmo 3.1 32b Think |
|---|---|---|
| LMArena Math | 1471 | 1305 |
| ProofBench | 43% | — |
Knowledge Muse Spark 1.2 leads
Muse Spark 1.2: 54.1 (#53), Olmo 3.1 32b Think: 35.7 (#181)
| Benchmark | Muse Spark 1.2 | Olmo 3.1 32b Think |
|---|---|---|
| LMArena Expert | 1480 | 1295 |
| SimpleQA Verified | 60.3% | — |
Multimodal Not comparable
Muse Spark 1.2: 43.4 (#25), Olmo 3.1 32b Think: —
| Benchmark | Muse Spark 1.2 | Olmo 3.1 32b Think |
|---|---|---|
| LMArena Vision | 1305 | — |
Multilingual Muse Spark 1.2 leads
Muse Spark 1.2: 57.1 (#11), Olmo 3.1 32b Think: 38.1 (#231)
| Benchmark | Muse Spark 1.2 | Olmo 3.1 32b Think |
|---|---|---|
| LMArena Non-English | 1478 | 1209 |
| LMArena Chinese | 1511 | 1242 |
| LMArena French | 1513 | 1260 |
| LMArena Russian | 1487 | 1193 |
| LMArena Spanish | 1498 | 1289 |
| LMArena German | — | 1262 |
Instruction Following Muse Spark 1.2 leads
Muse Spark 1.2: 76.7 (#36), Olmo 3.1 32b Think: 65.6 (#218)
| Benchmark | Muse Spark 1.2 | Olmo 3.1 32b Think |
|---|---|---|
| LMArena Instruction Following | 1461 | 1247 |
Long Context Muse Spark 1.2 leads
Muse Spark 1.2: 45.2 (#48), Olmo 3.1 32b Think: 38.6 (#195)
| Benchmark | Muse Spark 1.2 | Olmo 3.1 32b Think |
|---|---|---|
| LMArena Longer Query | 1475 | 1272 |
Writing & Preference Muse Spark 1.2 leads
Muse Spark 1.2: 72.3 (#14), Olmo 3.1 32b Think: 46.2 (#220)
| Benchmark | Muse Spark 1.2 | Olmo 3.1 32b Think |
|---|---|---|
| LMArena Text | 1482 | 1272 |
| LMArena Creative Writing | 1449 | 1226 |
| LMArena Multi-Turn | 1494 | 1252 |
| EQ-Bench Creative Writing | 1840 | — |
Frequently asked questions
Is Muse Spark 1.2 better than Olmo 3.1 32b Think?
Muse Spark 1.2 is the stronger model overall, scoring 50.3 to 37.9 on the Noometry Index.
Is Muse Spark 1.2 or Olmo 3.1 32b Think better for coding?
Muse Spark 1.2 scores higher on coding benchmarks: 49.2 versus 37.7 in the Noometry coding category.
How many benchmarks do Muse Spark 1.2 and Olmo 3.1 32b Think share?
14 benchmarks have published results for both models. Muse Spark 1.2 has 31 scored results on Noometry and Olmo 3.1 32b Think has 15.