# GLM-4.5-Air vs Grok-3 mini

> Grok-3 mini is the stronger model overall, scoring 41.2 to 38.9 on the Noometry Index.

- Canonical page: https://noometry.com/compare/glm-4-5-air-vs-grok-3-mini
- Last updated: 2026-10-12
- Shared benchmarks: 23

## Summary

- They share 23 benchmarks with published results for both. GLM-4.5-Air scores higher in 4 categories and Grok-3 mini in 4 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Grok-3 mini leads 46.4 to 35.0.
- The biggest single-benchmark swing is Kagi LLM Benchmark: 43% for GLM-4.5-Air and 61.3% for Grok-3 mini.
- GLM-4.5-Air has downloadable open weights; the other is API-only.

## Snapshot

| | GLM-4.5-Air | Grok-3 mini |
|---|---|---|
| Provider | Z.ai (Zhipu) | xAI |
| Noometry Index | 38.9 | 41.2 |
| Rank | 177 | 141 |
| Context | 131K | — |
| Input $/M | $0.20 | — |
| Output $/M | $1.10 | — |
| Weights | Open | Proprietary |

## Coding

- GLM-4.5-Air: 33.3 (#259)
- Grok-3 mini: 40.8 (#131)

| Benchmark | GLM-4.5-Air | Grok-3 mini |
|---|---|---|
| LMArena Coding | 1397 | 1379 |
| Aider Polyglot | — | 49.3% |
| GSO | 2.9% | — |
| WeirdML | — | 42.6% |

## Reasoning

- GLM-4.5-Air: 24.1 (#166)
- Grok-3 mini: 13.6 (#334)

| Benchmark | GLM-4.5-Air | Grok-3 mini |
|---|---|---|
| Kagi LLM Benchmark | 43% | 61.3% |
| LMArena Hard Prompts | 1379 | 1375 |
| ARC-AGI-2 | — | 0.4% |
| ARC-AGI-1 | — | 16.5% |
| Epoch Capabilities Index | — | 140.35 |
| ForecastBench | 59.2 | — |

## Math

- GLM-4.5-Air: 36.2 (#170)
- Grok-3 mini: 42.1 (#85)

| Benchmark | GLM-4.5-Air | Grok-3 mini |
|---|---|---|
| Omni-MATH | 39.1% | 31.8% |
| LMArena Math | 1396 | 1386 |
| OTIS Mock AIME 2024-2025 | — | 77.8% |
| MATH Level 5 | — | 90.9% |
| FrontierMath (Feb 2025 set) | — | 5.9% |

## Knowledge

- GLM-4.5-Air: 35.0 (#191)
- Grok-3 mini: 46.4 (#81)

| Benchmark | GLM-4.5-Air | Grok-3 mini |
|---|---|---|
| MMLU-Pro | 76.2% | 79.9% |
| GPQA (HELM) | 59.4% | 67.5% |
| LMArena Expert | 1370 | 1395 |
| GPQA Diamond | — | 76.3% |
| Humanity's Last Exam | 8.1% | — |
| Confabulations | — | 10.8% |
| Vectara Hallucination Rate | 9.3% | — |

## Multilingual

- GLM-4.5-Air: 49.1 (#135)
- Grok-3 mini: 48.1 (#145)

| Benchmark | GLM-4.5-Air | Grok-3 mini |
|---|---|---|
| LMArena Non-English | 1366 | 1352 |
| LMArena Chinese | 1426 | 1387 |
| LMArena French | 1399 | 1357 |
| LMArena German | 1377 | 1349 |
| LMArena Japanese | 1348 | 1342 |
| LMArena Korean | 1308 | 1335 |
| LMArena Russian | 1373 | 1353 |
| LMArena Spanish | 1386 | 1381 |

## Instruction Following

- GLM-4.5-Air: 69.6 (#171)
- Grok-3 mini: 78.5 (#9)

| Benchmark | GLM-4.5-Air | Grok-3 mini |
|---|---|---|
| IFEval | 81.2% | 95.1% |
| LMArena Instruction Following | 1354 | 1357 |

## Long Context

- GLM-4.5-Air: 41.6 (#135)
- Grok-3 mini: 41.0 (#147)

| Benchmark | GLM-4.5-Air | Grok-3 mini |
|---|---|---|
| LMArena Longer Query | 1366 | 1372 |
| Fiction.LiveBench | — | 66.7% |

## Writing & Preference

- GLM-4.5-Air: 55.9 (#139)
- Grok-3 mini: 52.5 (#169)

| Benchmark | GLM-4.5-Air | Grok-3 mini |
|---|---|---|
| LMArena Text | 1384 | 1370 |
| LMArena Creative Writing | 1343 | 1342 |
| WildBench | 78.9% | 65.1% |
| LMArena Multi-Turn | 1371 | 1355 |
| Short-Story Creative Writing | — | 73.5% |

## FAQ

### Is GLM-4.5-Air better than Grok-3 mini?

Grok-3 mini is the stronger model overall, scoring 41.2 to 38.9 on the Noometry Index.

### Is GLM-4.5-Air or Grok-3 mini better for coding?

Grok-3 mini scores higher on coding benchmarks: 40.8 versus 33.3 in the Noometry coding category.

### How many benchmarks do GLM-4.5-Air and Grok-3 mini share?

23 benchmarks have published results for both models. GLM-4.5-Air has 27 scored results on Noometry and Grok-3 mini has 35.