GLM-5.3
ECI#22
156GLM-5.3 is a closed-weights model from Z.ai (Zhipu AI), released August 14, 2026. It has an ECI score of 156 and ranks 22nd of 251 tracked models. At the time of its release, it ranked 18th of 244 tracked models.
GLM-5.3 vs select alternatives
| Domain | Benchmark | GLM-5.3 | |||
|---|---|---|---|---|---|
ECI scoreBest score 167 | 156 | 152 | 155 | 155 | |
| Ranking | #22 | #43 | #24 | #26 | |
| Agent | Vending-Bench 2Best score $15,515 | $8,164 | $8,314 | — | — |
| Games | Chess PuzzlesBest score 72% | ||||
Mystery Game PuzzlesBest score 84% | |||||
| Mathematics | FrontierMath Tiers 1-3 (v2)Best score 94% | ||||
FrontierMath Tier 4 (v2)Best score 98% | |||||
OTIS Mock AIME 2024-2025Best score 100% | |||||
| Science | GPQA DiamondBest score 96% | ||||
| Software engineering | Text Arena (Coding)Best score 1800 | 1614 | 1593 | 1581 | — |
| World knowledge | SimpleQA VerifiedBest score 76% |
