Muse Spark 1.1
ECI#38
154Muse Spark 1.1 is a closed-weights model from Meta AI, released July 9, 2026. It has an ECI score of 154 and ranks 38th of 257 tracked models. At the time of its release, it ranked 17th of 229 tracked models.
Muse Spark 1.1 vs select alternatives
| Domain | Benchmark | Muse Spark 1.1 | |||
|---|---|---|---|---|---|
ECI scoreBest score 167 | 154 | 152 | 154 | 154 | |
| Ranking | #38 | #45 | #37 | #35 | |
| Agent | APEX-AgentsBest score 88% | ||||
| Conceptual reasoning | LMCABest score 68.2 | 49.9 | — | 44.9 | 41.7 |
| Mathematics | ProofBenchBest score 100% | ||||
| Multimodal | GDP.pdfBest score 34% | ||||
| Science | CritPtBest score 32% | ||||
SciCodeBest score 67% | |||||
| Software engineering | Text Arena (Coding)Best score 1820 | 1542 | 1513 | 1537 | 1580 |
DeepSWE v1.1Best score 74% | |||||
| World knowledge | SimpleQA VerifiedBest score 76% |
