Z
GLM 4.5 AirOPEN
GLM 4.5 Air (Z.AI): live API pricing, context window and the best open-source alternatives, tracked daily by olud.ai.
Prices update automatically — checked hourly against provider list prices.
Benchmarks & performance
Independent benchmark scores for GLM 4.5 Air, measured by Artificial Analysis. Higher is better.
For the same budget, GLM 4.5 Air delivers 7.3 times more capability. Open weights also mean you can self-host it and pay nothing per token.
About this model
GLM 4.5 Air is an open-weight AI model by Z.AI. You can download and self-host it for free; the prices below are hosted-API list prices, tracked hourly, for when you prefer convenience over self-hosting.
Frequently asked questions
What is GLM 4.5 Air?
GLM 4.5 Air is an AI language model from Z.AI. It is open-weight: you can download it and run it on your own hardware, for free. It scores 16.5 on the Artificial Analysis intelligence index.
Is GLM 4.5 Air free?
The weights are free and open — you can self-host GLM 4.5 Air and pay nothing per token. If you prefer a hosted API, list prices are $0.13 per million input tokens and $0.85 per million output tokens.
What is GLM 4.5 Air good at?
Independent benchmarks from Artificial Analysis give it GPQA 73.3%, MMLU-Pro 81.5%, Humanity's Last Exam 6.8%, Long Context Reasoning 43.7%, LiveCodeBench 68.4%, SciCode 30.6%, MATH-500 96.5%, AIME 67.3%, AIME 2025 80.7%, IFBench 37.6%, τ²-Bench 46.5%, Terminal-Bench Hard 20.5%. It is particularly used for mathematical reasoning.
Can I self-host GLM 4.5 Air?
Yes. GLM 4.5 Air has open weights, so you can download it and run it on your own GPU or server with tools like Ollama, vLLM or llama.cpp — with no per-token cost.