# GLM-4.5 vs Mercury

> GLM-4.5 is the stronger model overall, scoring 41.4 to 37.3 on the Noometry Index.

- Canonical page: https://noometry.com/compare/glm-4-5-vs-mercury
- Last updated: 2026-10-10
- Shared benchmarks: 9

## Summary

- They share 9 benchmarks with published results for both. GLM-4.5 scores higher in 5 categories and Mercury in 1 category; 5 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where GLM-4.5 leads 57.7 to 46.2.
- The biggest single-benchmark swing is Kagi LLM Benchmark: 57.9% for GLM-4.5 and 21.6% for Mercury.
- GLM-4.5 has downloadable open weights; the other is API-only.

## Snapshot

| | GLM-4.5 | Mercury |
|---|---|---|
| Provider | Z.ai (Zhipu) | Inception |
| Noometry Index | 41.4 | 37.3 |
| Rank | 125 | 192 |
| Context | 131K | — |
| Input $/M | $0.60 | — |
| Output $/M | $2.20 | — |
| Weights | Open | Proprietary |

## Coding

- GLM-4.5: 41.1 (#121)
- Mercury: 38.1 (#164)

| Benchmark | GLM-4.5 | Mercury |
|---|---|---|
| LMArena Coding | 1434 | 1323 |
| SWE-bench Verified (bash only) | 54.2% | — |
| WeirdML | 40.6% | — |
| ALE-Bench | 344.82 | — |
| AlgoTune | 1.52 | — |

## Reasoning

- GLM-4.5: 27.7 (#99)
- Mercury: 16.8 (#288)

| Benchmark | GLM-4.5 | Mercury |
|---|---|---|
| Kagi LLM Benchmark | 57.9% | 21.6% |
| LMArena Hard Prompts | 1430 | 1284 |

## Math

- GLM-4.5: 36.3 (#119)
- Mercury: —

| Benchmark | GLM-4.5 | Mercury |
|---|---|---|
| LMArena Math | 1427 | — |

## Knowledge

- GLM-4.5: 35.5 (#172)
- Mercury: —

| Benchmark | GLM-4.5 | Mercury |
|---|---|---|
| Humanity's Last Exam | 8.3% | — |
| Confabulations | 11.3% | — |
| LMArena Expert | 1433 | — |

## Multilingual

- GLM-4.5: 53.0 (#74)
- Mercury: 41.7 (#201)

| Benchmark | GLM-4.5 | Mercury |
|---|---|---|
| LMArena Non-English | 1417 | 1259 |
| LMArena Chinese | 1465 | — |
| LMArena French | 1423 | — |
| LMArena German | 1406 | — |
| LMArena Japanese | 1416 | — |
| LMArena Korean | 1382 | — |
| LMArena Russian | 1414 | — |
| LMArena Spanish | 1454 | — |

## Instruction Following

- GLM-4.5: 74.3 (#100)
- Mercury: 65.3 (#220)

| Benchmark | GLM-4.5 | Mercury |
|---|---|---|
| LMArena Instruction Following | 1405 | 1238 |

## Long Context

- GLM-4.5: 38.2 (#196)
- Mercury: 38.3 (#193)

| Benchmark | GLM-4.5 | Mercury |
|---|---|---|
| LMArena Longer Query | 1413 | 1264 |
| Fiction.LiveBench | 58.3% | — |

## Writing & Preference

- GLM-4.5: 57.7 (#121)
- Mercury: 46.2 (#216)

| Benchmark | GLM-4.5 | Mercury |
|---|---|---|
| LMArena Text | 1430 | 1282 |
| LMArena Creative Writing | 1395 | 1186 |
| LMArena Multi-Turn | 1415 | 1283 |
| Short-Story Creative Writing | 73.4% | — |
| EQ-Bench Creative Writing | 1343 | — |

## FAQ

### Is GLM-4.5 better than Mercury?

GLM-4.5 is the stronger model overall, scoring 41.4 to 37.3 on the Noometry Index.

### Is GLM-4.5 or Mercury better for coding?

GLM-4.5 scores higher on coding benchmarks: 41.1 versus 38.1 in the Noometry coding category.

### How many benchmarks do GLM-4.5 and Mercury share?

9 benchmarks have published results for both models. GLM-4.5 has 27 scored results on Noometry and Mercury has 9.