GLM-5.3-Flash
ECI#45
153GLM-5.3-Flash is an open-weights model from Z.ai (Zhipu AI), released August 20, 2026. It has an ECI score of 153 and ranks 45th of 260 tracked models. At the time of its release, it ranked 31st of 245 tracked models.
GLM-5.3-Flash vs select alternatives
| Domain | Benchmark | GLM-5.3-Flash | |||
|---|---|---|---|---|---|
ECI scoreBest score 167 | 153 | 152 | 156 | 154 | |
| Ranking | #45 | #50 | #30 | #42 | |
| Conceptual reasoning | ARC-AGI-2Best score 95% | ||||
ARC-AGI-1Best score 99% | |||||
| Games | Chess PuzzlesBest score 76% | ||||
Mystery Game PuzzlesBest score 84% | |||||
| Mathematics | FrontierMath Tiers 1-3 (v2)Best score 94% | ||||
FrontierMath Tier 4 (v2)Best score 100% | |||||
OTIS Mock AIME 2024-2025Best score 100% | |||||
| Science | GPQA DiamondBest score 96% | ||||
| Software engineering | Text Arena (Coding)Best score 1820 | 1607 | 1593 | 1614 | 1555 |
