Muse Spark 1.1
ECI#44
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 44th of 253 tracked models. At the time of its release, it ranked 18th of 220 tracked models.
Muse Spark 1.1 vs select alternatives
| Domain | Benchmark | Muse Spark 1.1 | |||
|---|---|---|---|---|---|
ECI scoreBest score 169 | 154 | 152 | 154 | 154 | |
| Ranking | #44 | #51 | #45 | #43 | |
| Agent | Vending-Bench 2Best score $15,515 | $6,520 | — | — | $3,887 |
APEX-AgentsBest score 87% | |||||
| Games | Chess PuzzlesBest score 76% | ||||
| Multimodal | GDP.pdfBest score 35% | ||||
| Science | CritPt v1Best score 32% | ||||
SciCodeBest score 67% | |||||
| Software engineering | Text Arena (Coding)Best score 1820 | 1542 | 1513 | 1517 | 1555 |
DeepSWE v1.1Best score 74% | |||||
| World knowledge | SimpleQA VerifiedBest score 76% |
