GLM-5.3-Flash
ECI#52
154GLM-5.3-Flash is an open-weights model from Z.ai (Zhipu AI), released August 20, 2026. It has an ECI score of 154 and ranks 52nd of 240 tracked models. At the time of its release, it ranked 30th of 216 tracked models.
GLM-5.3-Flash vs select alternatives
| Domain | Benchmark | GLM-5.3-Flash | |||
|---|---|---|---|---|---|
ECI scoreBest score 173 | 154 | 153 | 157 | 154 | |
| Ranking | #52 | #54 | #32 | #51 | |
| Conceptual reasoning | ARC-AGI-2Best score 95% | ||||
ARC-AGI-1Best score 99% | |||||
| Games | Chess PuzzlesBest score 79% | ||||
Mystery Game PuzzlesBest score 90% | |||||
| Mathematics | FrontierMath Tiers 1-3 (v2)Best score 95% | ||||
FrontierMath Tier 4 (v2)Best score 100% | |||||
OTIS Mock AIME 2024-2025Best score 100% | |||||
| Science | GPQA DiamondBest score 97% | ||||
| Software engineering | Text Arena (Coding)Best score 1820 | 1607 | 1593 | 1614 | 1580 |
