Model comparison
GLM-4.5-Air vs GLM-4.6V
GLM-4.6V is the stronger model overall, scoring 40.9 to 38.7 on the Noometry Index.
Last verified . 11 shared benchmarks.
Summary
- They share 11 benchmarks with published results for both. GLM-4.5-Air scores higher in 2 categories and GLM-4.6V in 5 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in coding, where GLM-4.6V leads 40.2 to 34.5.
- GLM-4.5-Air is cheaper at $0.20 / $1.10 per million input/output tokens, against $0.30 / $0.90 for GLM-4.6V.
- GLM-4.5-Air accepts more context: 131K tokens versus 128K.
Side by side
| GLM-4.5-Air | GLM-4.6V | |
|---|---|---|
| Provider | Z.ai (Zhipu) | Z.ai (Zhipu) |
| Noometry Index | 38.7 | 40.9 |
| Released | 2025-07-20 | 2025-12-08 |
| Weights | Open | Open |
| Context window | 131K | 128K |
| Max output | 98K | 33K |
| Input $ / M tokens | $0.20 | $0.30 |
| Output $ / M tokens | $1.10 | $0.90 |
| Results tracked | 27 | 12 |
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Category by category
Coding GLM-4.6V leads
GLM-4.5-Air: 34.5 (#225), GLM-4.6V: 40.2 (#128)
| Benchmark | GLM-4.5-Air | GLM-4.6V |
|---|---|---|
| LMArena Coding | 1397 | 1390 |
| GSO | 2.9% | — |
Reasoning GLM-4.6V leads
GLM-4.5-Air: 23.3 (#166), GLM-4.6V: 26.5 (#117)
| Benchmark | GLM-4.5-Air | GLM-4.6V |
|---|---|---|
| LMArena Hard Prompts | 1379 | 1368 |
| Kagi LLM Benchmark | 43% | — |
| ForecastBench | 59.2 | — |
Math Not comparable
GLM-4.5-Air: 33.8 (#166), GLM-4.6V: —
| Benchmark | GLM-4.5-Air | GLM-4.6V |
|---|---|---|
| Omni-MATH | 39.1% | — |
| LMArena Math | 1396 | — |
Knowledge GLM-4.6V leads
GLM-4.5-Air: 34.6 (#184), GLM-4.6V: 37.4 (#148)
| Benchmark | GLM-4.5-Air | GLM-4.6V |
|---|---|---|
| LMArena Expert | 1370 | 1372 |
| Humanity's Last Exam | 8.1% | — |
| MMLU-Pro | 76.2% | — |
| Vectara Hallucination Rate | 9.3% | — |
| GPQA (HELM) | 59.4% | — |
Multimodal Not comparable
GLM-4.5-Air: —, GLM-4.6V: 34.2 (#83)
| Benchmark | GLM-4.5-Air | GLM-4.6V |
|---|---|---|
| LMArena Vision | — | 1164 |
Multilingual Too close to call
GLM-4.5-Air: 49.4 (#130), GLM-4.6V: 48.8 (#135)
| Benchmark | GLM-4.5-Air | GLM-4.6V |
|---|---|---|
| LMArena Non-English | 1366 | 1359 |
| LMArena Chinese | 1427 | 1426 |
| LMArena Russian | 1373 | 1341 |
| LMArena French | 1399 | — |
| LMArena German | 1376 | — |
| LMArena Japanese | 1348 | — |
| LMArena Korean | 1306 | — |
| LMArena Spanish | 1385 | — |
Instruction Following GLM-4.6V leads
GLM-4.5-Air: 69.8 (#165), GLM-4.6V: 71.6 (#145)
| Benchmark | GLM-4.5-Air | GLM-4.6V |
|---|---|---|
| LMArena Instruction Following | 1353 | 1351 |
| IFEval | 81.2% | — |
Long Context Too close to call
GLM-4.5-Air: 41.6 (#130), GLM-4.6V: 41.3 (#138)
| Benchmark | GLM-4.5-Air | GLM-4.6V |
|---|---|---|
| LMArena Longer Query | 1367 | 1358 |
Writing & Preference Too close to call
GLM-4.5-Air: 56.1 (#134), GLM-4.6V: 56.8 (#132)
| Benchmark | GLM-4.5-Air | GLM-4.6V |
|---|---|---|
| LMArena Text | 1384 | 1377 |
| LMArena Creative Writing | 1343 | 1347 |
| LMArena Multi-Turn | 1371 | 1359 |
| WildBench | 78.9% | — |
Frequently asked questions
Is GLM-4.5-Air better than GLM-4.6V?
GLM-4.6V is the stronger model overall, scoring 40.9 to 38.7 on the Noometry Index.
Which is cheaper, GLM-4.5-Air or GLM-4.6V?
GLM-4.5-Air is cheaper. It lists at $0.20 per million input tokens and $1.10 per million output tokens; GLM-4.6V lists at $0.30 and $0.90.
Is GLM-4.5-Air or GLM-4.6V better for coding?
GLM-4.6V scores higher on coding benchmarks: 40.2 versus 34.5 in the Noometry coding category.
Which has the bigger context window?
GLM-4.5-Air does, with 131K tokens against 128K.
How many benchmarks do GLM-4.5-Air and GLM-4.6V share?
11 benchmarks have published results for both models. GLM-4.5-Air has 27 scored results on Noometry and GLM-4.6V has 12.