--- title: Z.ai: GLM 4.5 Air API | Text Generation | ModelsLab description: Efficient MoE LLM with 106B total / 12B active params, 131K context, hybrid reasoning, function calling for agentic tasks; runs on RTX 4090, 104. url: https://modelslab.com/models/z-ai/z-ai-glm-4.5-air.md canonical: https://modelslab.com/models/z-ai/z-ai-glm-4.5-air.md type: product component: Playground/LLM/Index generated_at: 2026-06-03T20:24:43.875246Z --- Z.ai: GLM 4.5 Air --- [LLMs.txt](https://modelslab.com/models/open_router/z-ai-glm-4.5-air/llms.txt) [.md](https://modelslab.com/models/z-ai/z-ai-glm-4.5-air.md) Z.ai: GLM 4.5 Air --- Choose a prompt below to get started or type your own message Explain quantum computing in simple terms Write a Python function to sort a list Create a marketing email for a SaaS product Compare REST vs GraphQL APIs Send ### Z.ai: GLM 4.5 Air z-ai z-ai-glm-4.5-air Copy model ID PricingInput $0.125 / 1M tokens Output $0.85 / 1M tokens API EndpointsOpenAI Compatible `https://modelslab.com/api/v7/llm/chat/completions`Endpoint Anthropic Compatible `https://modelslab.com/api/v7/llm/v1/messages`Messages `https://modelslab.com/api/v7/llm/v1/messages/count_tokens`Count Tokens `https://modelslab.com/api/v7/llm/v1/models`Models Use with Claude Code cURL Example ParametersSystem MessageYou are a helpful AI assistant specialized in providing accurate and detailed responses. Temperature0.7 Max Tokens1000 Top P0.9 Frequency Penalty0 Presence Penalty0 Model Info Support Related Models --- Discover similar models you might be interested in [View all LLM Models](https://modelslab.com/models?feature=llmaster) [#### google\_deepmind/Gemma 3N E4B Instruct google-gemma-3n-E4B-it From $0.09/M tokens](https://modelslab.com/models/google_deepmind/google-gemma-3n-E4B-it) [#### open\_router/Anthropic: Claude Opus 4.6 (Fast) anthropic-claude-opus-4.6-fast From $90.00/M tokens](https://modelslab.com/models/open_router/anthropic-claude-opus-4.6-fast) [#### open\_router/Qwen: Qwen3.6 35B A3B qwen-qwen3.6-35b-a3b From $0.57/M tokens](https://modelslab.com/models/open_router/qwen-qwen3.6-35b-a3b) [#### open\_router/Xiaomi: MiMo-V2-Flash xiaomi-mimo-v2-flash From $0.20/M tokens](https://modelslab.com/models/open_router/xiaomi-mimo-v2-flash) [#### open\_router/ByteDance Seed: Seed-2.0-Lite bytedance-seed-seed-2.0-lite From $1.13/M tokens](https://modelslab.com/models/open_router/bytedance-seed-seed-2.0-lite) [#### open\_router/OpenAI: GPT-3.5 Turbo Instruct openai-gpt-3.5-turbo-instruct From $1.75/M tokens](https://modelslab.com/models/open_router/openai-gpt-3.5-turbo-instruct) [#### open\_router/MoonshotAI: Kimi K2 0711 moonshotai-kimi-k2 From $1.44/M tokens](https://modelslab.com/models/open_router/moonshotai-kimi-k2) [#### open\_router/Google: Gemini 2.5 Flash Lite Preview 09-2025 google-gemini-2.5-flash-lite-preview-09-2025 From $0.25/M tokens](https://modelslab.com/models/open_router/google-gemini-2.5-flash-lite-preview-09-2025) [#### open\_router/Google: Gemini 3.5 Flash google-gemini-3.5-flash From $5.25/M tokens](https://modelslab.com/models/open_router/google-gemini-3.5-flash) [#### open\_router/Meta: Llama Guard 4 12B meta-llama-llama-guard-4-12b From $0.18/M tokens](https://modelslab.com/models/open_router/meta-llama-llama-guard-4-12b) [#### open\_router/MoonshotAI: Kimi K2 Thinking moonshotai-kimi-k2-thinking From $1.55/M tokens](https://modelslab.com/models/open_router/moonshotai-kimi-k2-thinking) [#### open\_router/Arcee AI: Trinity Large Thinking arcee-ai-trinity-large-thinking From $0.54/M tokens](https://modelslab.com/models/open_router/arcee-ai-trinity-large-thinking) [#### open\_router/Google: Nano Banana (Gemini 2.5 Flash Image) google-gemini-2.5-flash-image From $1.40/M tokens](https://modelslab.com/models/open_router/google-gemini-2.5-flash-image) [#### open\_router/Mistral: Mixtral 8x22B Instruct mistralai-mixtral-8x22b-instruct From $4.00/M tokens](https://modelslab.com/models/open_router/mistralai-mixtral-8x22b-instruct) [#### open\_router/Morph: Morph V3 Large morph-morph-v3-large From $1.40/M tokens](https://modelslab.com/models/open_router/morph-morph-v3-large) [#### together\_ai/GLM 5.1 FP4 zai-org-GLM-5.1 From $2.90/M tokens](https://modelslab.com/models/together_ai/zai-org-GLM-5.1) [#### open\_router/Google: Gemma 3n 4B google-gemma-3n-e4b-it From $0.09/M tokens](https://modelslab.com/models/open_router/google-gemma-3n-e4b-it) [#### open\_router/Qwen: Qwen3 Coder Flash qwen-qwen3-coder-flash From $0.58/M tokens](https://modelslab.com/models/open_router/qwen-qwen3-coder-flash) Open Source Alternatives --- Explore open-source models that offer similar capabilities with full transparency and flexibility [View all open source models](https://modelslab.com/models?feature=llm&provider=open-source-models) [MU](https://modelslab.com/models/modelslab/uncensored-chat)[ModelsLab](https://modelslab.com/models/modelslab) [Modelslab: Uncensored Chat Open Source Model](https://modelslab.com/models/modelslab/uncensored-chat) About Z.Ai: GLM 4.5 Air --- GLM-4.5-Air is the lightweight variant of our latest flagship model family, also purpose-built for agent-centric applications. Like GLM-4.5, it adopts the Mixture-of-Experts (MoE) architecture but with a more compact parameter... ### Technical Specifications Model IDz-ai-glm-4.5-air CategoryLLM Models TaskText Generation Price$0.4875 per million tokens AddedFebruary 20, 2026 ### Key Features - Chat completion and multi-turn conversation API - Streaming response with token-by-token output - Function calling and tool use support - System prompts and role-based messaging - JSON mode and structured output ### Quick Start Integrate Z.Ai: GLM 4.5 Air into your application with a single API call. Get your API key from the [pricing page](https://modelslab.com/pricing) to get started. PythonJavaScriptcURLPHP ``` import requests import json url = "https://modelslab.com/api/v7/llm/chat/completions" headers = { "Content-Type": "application/json" } data = { "model_id": "z-ai-glm-4.5-air", "messages": [ { "role": "user", "content": "Hello!" } ], "max_tokens": 1000, "key": "YOUR_API_KEY" } try: response = requests.post(url, headers=headers, json=data) response.raise_for_status() # Raises an HTTPError for bad responses (4XX or 5XX) result = response.json() print("API Response:") print(json.dumps(result, indent=2)) except requests.exceptions.HTTPError as http_err: print(f"HTTP error occurred: {http_err} - {response.text}") except Exception as err: print(f"Other error occurred: {err}") ``` ### Pricing Z.Ai: GLM 4.5 Air API costs $0.487500 per million tokens. Pay only for what you use with no minimum commitments. [View pricing plans](https://modelslab.com/pricing) ### Use Cases - AI chatbots and virtual assistants - Code generation and developer tools - Content writing and copywriting automation - Data analysis, summarization, and extraction [Learn more about Z.Ai: GLM 4.5 Air](https://modelslab.com/zai-glm-45-air) [Browse LLM Models](https://modelslab.com/models?feature=llmaster) [More from Z Ai](https://modelslab.com/models/open_router) [View Pricing](https://modelslab.com/pricing) Z.Ai: GLM 4.5 Air FAQ --- ### What is Z.Ai: GLM 4.5 Air? GLM-4.5-Air is the lightweight variant of our latest flagship model family, also purpose-built for agent-centric applications. Like GLM-4.5, it adopts the Mixture-of-Experts (MoE) architecture but with a more compact parameter... ### How do I use the Z.Ai: GLM 4.5 Air API? You can integrate Z.Ai: GLM 4.5 Air into your application with a single API call. Sign up on ModelsLab to get your API key, then use the model ID "z-ai-glm-4.5-air" in your API requests. We provide SDKs for Python, JavaScript, and cURL examples in the API documentation. ### How much does Z.Ai: GLM 4.5 Air cost? Z.Ai: GLM 4.5 Air costs $0.487500 per million tokens. ModelsLab uses pay-per-use pricing with no minimum commitments. A free tier is available to get started. ### What is the Z.Ai: GLM 4.5 Air model ID? The model ID for Z.Ai: GLM 4.5 Air is "z-ai-glm-4.5-air". Use this ID in your API requests to specify this model. ### Does Z.Ai: GLM 4.5 Air have a free tier? Yes, ModelsLab offers a free tier that lets you try Z.Ai: GLM 4.5 Air and other AI models. Sign up to get free API credits and start building immediately. --- *This markdown version is optimized for AI agents and LLMs.* **Links:** - [Website](https://modelslab.com) - [API Documentation](https://docs.modelslab.com) - [Blog](https://modelslab.com/blog) --- *Generated by ModelsLab - 2026-06-04*