GLM-4.5-Air vs Nemotron Nano 9B v2
Nemotron Nano 9B v2 comes out ahead, 64 to 49 on our weighted score, and it is the cheaper option too.
Z.ai (Zhipu)GLM-4.5-Air
49/100- ECI—
- Price$0.20 / $1.10
- Context131K
- Our pick
NVIDIANemotron Nano 9B v2
64/100- ECI—
- Price$0.06 / $0.23
- Context131K
Add a model
Make it a three-way comparison.
Nemotron Nano 9B v2 is our pick
Nemotron Nano 9B v2 is the better all-round choice, scoring 64/100 against GLM-4.5-Air (49). It leads on price. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.
- CapabilityNot enough dataNo independent benchmark covers every model here yet
- Lowest priceNemotron Nano 9B v2Nemotron Nano 9B v2 $0.102 · GLM-4.5-Air $0.425 per 1M tokens (3:1 blend)
- Longest contextAbout the sameGLM-4.5-Air 131,072 · Nemotron Nano 9B v2 131,072 tokens
- Widest inputsSame inputsGLM-4.5-Air: Text · Nemotron Nano 9B v2: Text
- Self-hostingAll open weightsEvery model here can be downloaded and run on your own hardware
| Measure | Weight | GLM-4.5-Air | Nemotron Nano 9B v2 |
|---|---|---|---|
| Price | 50% | 68 | 97 |
| Inputs & features | 30% | 35 | 35 |
| Context window | 20% | 24 | 24 |
| Overall | 100% | 49/100 | 64/100 |
Left out because at least one model lacks the data: capability. The remaining weights were rescaled.
Every spec in one table
Highlighted cells lead their row. Dashes mean the data is not published.
| Specification | GLM-4.5-AirZ.ai (Zhipu) | Nemotron Nano 9B v2NVIDIA |
|---|---|---|
| Capability | ||
| Capabilities Index (ECI) | — | — |
| ECI rank | — | — |
| Price per million tokens | ||
| Input | $0.20 | $0.06 (best) |
| Output | $1.10 | $0.23 (best) |
| Cached input | $0.03 | — |
| Blended (3:1) | $0.425 | $0.102 (best) |
| Long-context rate | Same rate | Same rate |
| Price source | Official Z.AI API | Median of 3 providers |
| Limits | ||
| Context window | 131,072 tokens | 131,072 tokens |
| Max output | 98,304 tokens | 131,072 tokens (best) |
| Inputs and features | ||
| Text | Yes | Yes |
| Images | No | No |
| PDFs | No | No |
| Audio | No | No |
| Video | No | No |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Structured output | No | No |
| Availability | ||
| Weights | Open | Open |
| API model ID | glm-4.5-air | nvidia/nvidia-nemotron-nano-9b-v2 |
| API providers | 13 (best) | 4 |
| Released | Jul 28, 2025 | Aug 18, 2025 |
| Knowledge cutoff | Apr 2025 | — |
What would a month cost?
Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.
- GLM-4.5-Air$4.20
- Nemotron Nano 9B v2$1.06
Which should you choose?
Which is better: GLM-4.5-Air or Nemotron Nano 9B v2?
Nemotron Nano 9B v2 is the better all-round choice, scoring 64/100 against GLM-4.5-Air (49). It leads on price. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.
Which is cheaper, GLM-4.5-Air or Nemotron Nano 9B v2?
Nemotron Nano 9B v2 is cheaper at $0.06 input / $0.23 output per million tokens (median across 3 API providers; free on Nvidia). GLM-4.5-Air costs $0.20 input / $1.10 output per million tokens (official Z.AI API price). At a typical mix of three input tokens to one output token, that is $0.102 per million tokens for Nemotron Nano 9B v2 versus $0.425 for GLM-4.5-Air (4.1× as much).
Which scores higher on benchmarks?
There is no independent benchmark that covers both models yet. GLM-4.5-Air has not been scored yet and Nemotron Nano 9B v2 has not been scored yet.
Which is better for coding?
There are no published SWE-bench Verified results for GLM-4.5-Air and Nemotron Nano 9B v2 yet, so there is no like-for-like coding score. Test both on a sample of your own tasks. Both support tool calling for agent workflows.
Which has the bigger context window?
GLM-4.5-Air and Nemotron Nano 9B v2 share the same 131,072-token context window. Maximum output per response: GLM-4.5-Air up to 98,304, Nemotron Nano 9B v2 up to 131,072 tokens.
Which can read images, PDFs, audio or video?
GLM-4.5-Air accepts text; Nemotron Nano 9B v2 accepts text. They handle the same number of input types.
Are any of these open source?
Yes, both publish their weights, so you can self-host them.
Which is newer?
Nemotron Nano 9B v2 is the newest, released Aug 18, 2025. GLM-4.5-Air came out Jul 28, 2025. Knowledge cutoff: GLM-4.5-Air Apr 2025.
How do you decide the winner?
Each model gets a 0–100 score on capability (50%, independent benchmark results); price (25%, blended price per million tokens (3 input : 1 output), log scale); inputs & features (15%, image, PDF, audio and video input, tool calling, structured output and reasoning); context window (10%, maximum tokens per request, log scale). Dimensions missing for any model are dropped and the remaining weights rescaled, so every model is judged on the same evidence. Specs and prices come from public model listings and the labs’ own API pages; capability scores come from independent benchmark runs. Data updated Oct 4, 2026.
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