Model comparison
GLM-4.5-Air vs Grok 2 Mini 2024 08 13
GLM-4.5-Air is the stronger model overall, scoring 38.9 to 37.7 on the Noometry Index.
Last verified . 17 shared benchmarks.
Summary
- They share 17 benchmarks with published results for both. GLM-4.5-Air scores higher in 6 categories and Grok 2 Mini 2024 08 13 in 2 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where GLM-4.5-Air leads 55.9 to 47.3.
- GLM-4.5-Air has downloadable open weights; the other is API-only.
Side by side
| GLM-4.5-Air | Grok 2 Mini 2024 08 13 | |
|---|---|---|
| Provider | Z.ai (Zhipu) | xAI |
| Noometry Index | 38.9 | 37.7 |
| Released | 2025-07-20 | 2024-08-13 |
| Weights | Open | Proprietary |
| Context window | 131K | — |
| Max output | 98K | — |
| Input $ / M tokens | $0.20 | — |
| Output $ / M tokens | $1.10 | — |
| Results tracked | 27 | 17 |
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Category by category
Coding Grok 2 Mini 2024 08 13 leads
GLM-4.5-Air: 33.3 (#259), Grok 2 Mini 2024 08 13: 37.0 (#199)
| Benchmark | GLM-4.5-Air | Grok 2 Mini 2024 08 13 |
|---|---|---|
| LMArena Coding | 1397 | 1269 |
| GSO | 2.9% | — |
Reasoning Too close to call
GLM-4.5-Air: 24.1 (#166), Grok 2 Mini 2024 08 13: 24.8 (#159)
| Benchmark | GLM-4.5-Air | Grok 2 Mini 2024 08 13 |
|---|---|---|
| LMArena Hard Prompts | 1379 | 1255 |
| Kagi LLM Benchmark | 43% | — |
| ForecastBench | 59.2 | — |
Math Too close to call
GLM-4.5-Air: 36.2 (#170), Grok 2 Mini 2024 08 13: 35.4 (#185)
| Benchmark | GLM-4.5-Air | Grok 2 Mini 2024 08 13 |
|---|---|---|
| LMArena Math | 1396 | 1265 |
| Omni-MATH | 39.1% | — |
Knowledge GLM-4.5-Air leads
GLM-4.5-Air: 35.0 (#191), Grok 2 Mini 2024 08 13: 33.9 (#200)
| Benchmark | GLM-4.5-Air | Grok 2 Mini 2024 08 13 |
|---|---|---|
| LMArena Expert | 1370 | 1238 |
| Humanity's Last Exam | 8.1% | — |
| MMLU-Pro | 76.2% | — |
| Vectara Hallucination Rate | 9.3% | — |
| GPQA (HELM) | 59.4% | — |
Multilingual GLM-4.5-Air leads
GLM-4.5-Air: 49.1 (#135), Grok 2 Mini 2024 08 13: 41.4 (#208)
| Benchmark | GLM-4.5-Air | Grok 2 Mini 2024 08 13 |
|---|---|---|
| LMArena Non-English | 1366 | 1257 |
| LMArena Chinese | 1426 | 1262 |
| LMArena French | 1399 | 1286 |
| LMArena German | 1377 | 1273 |
| LMArena Japanese | 1348 | 1213 |
| LMArena Korean | 1308 | 1195 |
| LMArena Russian | 1373 | 1261 |
| LMArena Spanish | 1386 | 1279 |
Instruction Following GLM-4.5-Air leads
GLM-4.5-Air: 69.6 (#171), Grok 2 Mini 2024 08 13: 65.5 (#220)
| Benchmark | GLM-4.5-Air | Grok 2 Mini 2024 08 13 |
|---|---|---|
| LMArena Instruction Following | 1354 | 1245 |
| IFEval | 81.2% | — |
Long Context GLM-4.5-Air leads
GLM-4.5-Air: 41.6 (#135), Grok 2 Mini 2024 08 13: 38.4 (#196)
| Benchmark | GLM-4.5-Air | Grok 2 Mini 2024 08 13 |
|---|---|---|
| LMArena Longer Query | 1366 | 1266 |
Writing & Preference GLM-4.5-Air leads
GLM-4.5-Air: 55.9 (#139), Grok 2 Mini 2024 08 13: 47.3 (#211)
| Benchmark | GLM-4.5-Air | Grok 2 Mini 2024 08 13 |
|---|---|---|
| LMArena Text | 1384 | 1281 |
| LMArena Creative Writing | 1343 | 1242 |
| LMArena Multi-Turn | 1371 | 1265 |
| WildBench | 78.9% | — |
Frequently asked questions
Is GLM-4.5-Air better than Grok 2 Mini 2024 08 13?
GLM-4.5-Air is the stronger model overall, scoring 38.9 to 37.7 on the Noometry Index.
Is GLM-4.5-Air or Grok 2 Mini 2024 08 13 better for coding?
Grok 2 Mini 2024 08 13 scores higher on coding benchmarks: 37.0 versus 33.3 in the Noometry coding category.
How many benchmarks do GLM-4.5-Air and Grok 2 Mini 2024 08 13 share?
17 benchmarks have published results for both models. GLM-4.5-Air has 27 scored results on Noometry and Grok 2 Mini 2024 08 13 has 17.