Model comparison
Gemini 1.5 Flash 8B vs GLM-4.5-Air
GLM-4.5-Air is the stronger model overall, scoring 38.7 to 29.7 on the Noometry Index.
Last verified . 17 shared benchmarks.
GoogleSummary
- They share 17 benchmarks with published results for both. Gemini 1.5 Flash 8B scores higher in 1 category and GLM-4.5-Air in 7 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in math, where GLM-4.5-Air leads 33.8 to 13.3.
- GLM-4.5-Air has downloadable open weights; the other is API-only.
Side by side
| Gemini 1.5 Flash 8B | GLM-4.5-Air | |
|---|---|---|
| Provider | Z.ai (Zhipu) | |
| Noometry Index | 29.7 | 38.7 |
| Released | 2024-10-03 | 2025-07-20 |
| Weights | Proprietary | Open |
| Context window | — | 131K |
| Max output | — | 98K |
| Input $ / M tokens | — | $0.20 |
| Output $ / M tokens | — | $1.10 |
| Results tracked | 21 | 27 |
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Category by category
Coding Too close to call
Gemini 1.5 Flash 8B: 34.9 (#221), GLM-4.5-Air: 34.5 (#225)
| Benchmark | Gemini 1.5 Flash 8B | GLM-4.5-Air |
|---|---|---|
| LMArena Coding | 1218 | 1397 |
| GSO | — | 2.9% |
Reasoning GLM-4.5-Air leads
Gemini 1.5 Flash 8B: 19.2 (#242), GLM-4.5-Air: 23.3 (#166)
| Benchmark | Gemini 1.5 Flash 8B | GLM-4.5-Air |
|---|---|---|
| LMArena Hard Prompts | 1210 | 1379 |
| Kagi LLM Benchmark | — | 43% |
| DTBench | 50% | — |
| ForecastBench | — | 59.2 |
Math GLM-4.5-Air leads
Gemini 1.5 Flash 8B: 13.3 (#296), GLM-4.5-Air: 33.8 (#166)
| Benchmark | Gemini 1.5 Flash 8B | GLM-4.5-Air |
|---|---|---|
| LMArena Math | 1207 | 1396 |
| OTIS Mock AIME 2024-2025 | 4.6% | — |
| Omni-MATH | — | 39.1% |
Knowledge GLM-4.5-Air leads
Gemini 1.5 Flash 8B: 16.0 (#285), GLM-4.5-Air: 34.6 (#184)
| Benchmark | Gemini 1.5 Flash 8B | GLM-4.5-Air |
|---|---|---|
| LMArena Expert | 1185 | 1370 |
| GPQA Diamond | 33% | — |
| Humanity's Last Exam | — | 8.1% |
| MMLU-Pro | — | 76.2% |
| Vectara Hallucination Rate | — | 9.3% |
| GPQA (HELM) | — | 59.4% |
Multimodal Not comparable
Gemini 1.5 Flash 8B: 27.6 (#110), GLM-4.5-Air: —
| Benchmark | Gemini 1.5 Flash 8B | GLM-4.5-Air |
|---|---|---|
| LMArena Vision | 1044 | — |
Multilingual GLM-4.5-Air leads
Gemini 1.5 Flash 8B: 38.6 (#224), GLM-4.5-Air: 49.4 (#130)
| Benchmark | Gemini 1.5 Flash 8B | GLM-4.5-Air |
|---|---|---|
| LMArena Non-English | 1215 | 1366 |
| LMArena Chinese | 1231 | 1427 |
| LMArena French | 1233 | 1399 |
| LMArena German | 1206 | 1376 |
| LMArena Japanese | 1150 | 1348 |
| LMArena Korean | 1140 | 1306 |
| LMArena Russian | 1236 | 1373 |
| LMArena Spanish | 1212 | 1385 |
Instruction Following GLM-4.5-Air leads
Gemini 1.5 Flash 8B: 63.1 (#231), GLM-4.5-Air: 69.8 (#165)
| Benchmark | Gemini 1.5 Flash 8B | GLM-4.5-Air |
|---|---|---|
| LMArena Instruction Following | 1199 | 1353 |
| IFEval | — | 81.2% |
Long Context GLM-4.5-Air leads
Gemini 1.5 Flash 8B: 36.9 (#220), GLM-4.5-Air: 41.6 (#130)
| Benchmark | Gemini 1.5 Flash 8B | GLM-4.5-Air |
|---|---|---|
| LMArena Longer Query | 1219 | 1367 |
Writing & Preference GLM-4.5-Air leads
Gemini 1.5 Flash 8B: 43.0 (#227), GLM-4.5-Air: 56.1 (#134)
| Benchmark | Gemini 1.5 Flash 8B | GLM-4.5-Air |
|---|---|---|
| LMArena Text | 1226 | 1384 |
| LMArena Creative Writing | 1218 | 1343 |
| LMArena Multi-Turn | 1185 | 1371 |
| WildBench | — | 78.9% |
Frequently asked questions
Is Gemini 1.5 Flash 8B better than GLM-4.5-Air?
GLM-4.5-Air is the stronger model overall, scoring 38.7 to 29.7 on the Noometry Index.
Is Gemini 1.5 Flash 8B or GLM-4.5-Air better for coding?
They score almost the same on coding (34.9 vs 34.5); test both on your own repository before choosing.
How many benchmarks do Gemini 1.5 Flash 8B and GLM-4.5-Air share?
17 benchmarks have published results for both models. Gemini 1.5 Flash 8B has 21 scored results on Noometry and GLM-4.5-Air has 27.