Up to four models
Muse Spark 1.3 vs Muse Spark 1.2
On the index (GPT-4 = 100), Muse Spark 1.3 scores 172 and Muse Spark 1.2 168. Side by side on the same third-party tests, with price and context. The link in your address bar shares this exact comparison.
Muse Spark 1.3172156–188
WeightsClosed
ReleasedSep 2026
Price in / out$1.25 / $4.25
Context1.05M
Core tests taken4 of 9
Muse Spark 1.2168151–184
WeightsClosed
ReleasedAug 2026
Price in / out$1.25 / $4.25
Context1.05M
Core tests taken3 of 9
Muse Spark 1.3 leads Muse Spark 1.2 by 5 points, ahead on 2 of 3 shared core tests, at a similar price.
Test by testthird-party results
Muse Spark 1.3Muse Spark 1.2Every result as a table
| Test | Muse Spark 1.3 | Muse Spark 1.2 |
|---|---|---|
| Reasoning & knowledge | ||
| LiveBench Data Analysis | 79.6% | 76.5% |
| LiveBench IF | 78.0% | 74.3% |
| LiveBench Language | 82.8% | 78.6% |
| LiveBench Reasoning | 89.6% | 90.0% |
| Maths | ||
| LiveBench Mathematics | 96.0% | 91.2% |
| ProofBench v1.1 | 55.0% | 43.0% |
| Chess puzzles | 37.0% | 27.0% |
| Coding | ||
| Terminal-Bench 4.0 | 10.6% | 6.1% |
| LiveBench Agentic Coding | 64.1% | 57.6% |
| LiveBench Coding | 81.1% | 77.5% |
| Code Migration | 27.6% | 29.9% |
| CyberBench v1.1 | 69.4% | 69.5% |
| IOI | 43.9% | 21.8% |
| ProgramBench | 0.5% | 0.5% |
| Vibe Code Bench v1.1 | 82.9% | 79.1% |
| FrontierSWE | 25.8% | 12.0% |
| Agents | ||
| APEX-Agents | 58.6% | 45.4% |
| DTBench | 96.5% | 94.7% |
| LMCA | 53.9% | 48.4% |
| Professional work | ||
| Finance Agent (v2) | 58.9% | 60.6% |
| EMB | 62.7% | 57.0% |
| Legal Research Bench | 40.9% | 43.8% |
| Tax Agent Bench | 36.0% | 32.8% |
Tests at least two of these models have taken. Bold rows are the core tests.
