GLM-5.3
ECI#24
155GLM-5.3 is a closed-weights model from Z.ai (Zhipu AI), released August 14, 2026. It has an ECI score of 155 and ranks 24th of 247 tracked models. At the time of its release, it ranked 22nd of 244 tracked models. At $1.40/Mtok for input tokens and $4.40/Mtok for output tokens, it is less expensive per token than similarly-capable models.
Input price$1.40 / 1M tokens
Output price$4.40 / 1M tokens
Parameters7.4e11
Training computeUnknown
GLM-5.3 vs select alternatives
Reasoning
| Domain | Benchmark | GLM-5.3 | |||
|---|---|---|---|---|---|
ECI scoreBest score 167 | 155 | 152 | 155 | 154 | |
| Ranking | #24 | #37 | #21 | #29 | |
| Agent | Vending-Bench 2Best score 11181.9 | 8163.6 | 8313.8 | — | — |
| Games | Chess PuzzlesBest score 72.0% | ||||
Mystery Game PuzzlesBest score 84.0% | |||||
| Mathematics | FrontierMath Tiers 1-3 (v2)Best score 93.7% | ||||
FrontierMath Tier 4 (v2)Best score 97.6% | |||||
OTIS Mock AIME 2024-2025Best score 100.0% | |||||
| Science | GPQA DiamondBest score 95.8% | ||||
| Software engineering | Text Arena (Coding)Best score 1797.0 | 1598.6 | 1593.3 | 1581.6 | 1538.9 |
| World knowledge | SimpleQA VerifiedBest score 75.6% |
