Model comparison
GLM-4.5-Air vs Nova Premier 1.0
GLM-4.5-Air and Nova Premier 1.0 score almost the same on the Noometry Index (38.9 vs 38.3), so choose on price, context window or the category you care about most.
Last verified . 6 shared benchmarks.
Summary
- They share 6 benchmarks with published results for both. GLM-4.5-Air scores higher in 4 categories and Nova Premier 1.0 in 1 category; 4 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where GLM-4.5-Air leads 55.9 to 51.0.
- The biggest single-benchmark swing is GPQA (HELM): 59.4% for GLM-4.5-Air and 51.8% for Nova Premier 1.0.
- GLM-4.5-Air is cheaper at $0.20 / $1.10 per million input/output tokens, against $2.50 / $12.50 for Nova Premier 1.0.
- Nova Premier 1.0 accepts more context: 1M tokens versus 131K.
- GLM-4.5-Air has downloadable open weights; the other is API-only.
Side by side
| GLM-4.5-Air | Nova Premier 1.0 | |
|---|---|---|
| Provider | Z.ai (Zhipu) | Amazon |
| Noometry Index | 38.9 | 38.3 |
| Released | 2025-07-20 | 2025-04-30 |
| Weights | Open | Proprietary |
| Context window | 131K | 1M |
| Max output | 98K | 10K |
| Input $ / M tokens | $0.20 | $2.50 |
| Output $ / M tokens | $1.10 | $12.50 |
| Results tracked | 27 | 6 |
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Category by category
Coding Not comparable
GLM-4.5-Air: 33.3 (#259), Nova Premier 1.0: —
| Benchmark | GLM-4.5-Air | Nova Premier 1.0 |
|---|---|---|
| GSO | 2.9% | — |
| LMArena Coding | 1397 | — |
Reasoning GLM-4.5-Air leads
GLM-4.5-Air: 24.1 (#166), Nova Premier 1.0: 23.0 (#185)
| Benchmark | GLM-4.5-Air | Nova Premier 1.0 |
|---|---|---|
| Kagi LLM Benchmark | 43% | 44.8% |
| LMArena Hard Prompts | 1379 | — |
| ForecastBench | 59.2 | — |
Math GLM-4.5-Air leads
GLM-4.5-Air: 36.2 (#170), Nova Premier 1.0: 33.8 (#199)
| Benchmark | GLM-4.5-Air | Nova Premier 1.0 |
|---|---|---|
| Omni-MATH | 39.1% | 35% |
| LMArena Math | 1396 | — |
Knowledge Too close to call
GLM-4.5-Air: 35.0 (#191), Nova Premier 1.0: 35.8 (#180)
| Benchmark | GLM-4.5-Air | Nova Premier 1.0 |
|---|---|---|
| MMLU-Pro | 76.2% | 72.6% |
| GPQA (HELM) | 59.4% | 51.8% |
| Humanity's Last Exam | 8.1% | — |
| Vectara Hallucination Rate | 9.3% | — |
| LMArena Expert | 1370 | — |
Multilingual Not comparable
GLM-4.5-Air: 49.1 (#135), Nova Premier 1.0: —
| Benchmark | GLM-4.5-Air | Nova Premier 1.0 |
|---|---|---|
| LMArena Non-English | 1366 | — |
| LMArena Chinese | 1426 | — |
| LMArena French | 1399 | — |
| LMArena German | 1377 | — |
| LMArena Japanese | 1348 | — |
| LMArena Korean | 1308 | — |
| LMArena Russian | 1373 | — |
| LMArena Spanish | 1386 | — |
Instruction Following GLM-4.5-Air leads
GLM-4.5-Air: 69.6 (#171), Nova Premier 1.0: 66.8 (#204)
| Benchmark | GLM-4.5-Air | Nova Premier 1.0 |
|---|---|---|
| IFEval | 81.2% | 80.3% |
| LMArena Instruction Following | 1354 | — |
Long Context Not comparable
GLM-4.5-Air: 41.6 (#135), Nova Premier 1.0: —
| Benchmark | GLM-4.5-Air | Nova Premier 1.0 |
|---|---|---|
| LMArena Longer Query | 1366 | — |
Writing & Preference GLM-4.5-Air leads
GLM-4.5-Air: 55.9 (#139), Nova Premier 1.0: 51.0 (#178)
| Benchmark | GLM-4.5-Air | Nova Premier 1.0 |
|---|---|---|
| WildBench | 78.9% | 78.8% |
| LMArena Text | 1384 | — |
| LMArena Creative Writing | 1343 | — |
| LMArena Multi-Turn | 1371 | — |
Frequently asked questions
Is GLM-4.5-Air better than Nova Premier 1.0?
GLM-4.5-Air and Nova Premier 1.0 score almost the same on the Noometry Index (38.9 vs 38.3), so choose on price, context window or the category you care about most.
Which is cheaper, GLM-4.5-Air or Nova Premier 1.0?
GLM-4.5-Air is cheaper. It lists at $0.20 per million input tokens and $1.10 per million output tokens; Nova Premier 1.0 lists at $2.50 and $12.50.
Which has the bigger context window?
Nova Premier 1.0 does, with 1M tokens against 131K.
How many benchmarks do GLM-4.5-Air and Nova Premier 1.0 share?
6 benchmarks have published results for both models. GLM-4.5-Air has 27 scored results on Noometry and Nova Premier 1.0 has 6.