--- title: Z.ai: GLM 4.5 API | Text Generation | ModelsLab description: Powerful open-source MoE LLM with 355B total/32B active params excels in reasoning, coding & agentic tasks; 131K context, hybrid modes, runs on 8x H100. url: https://modelslab.com/models/z-ai/z-ai-glm-4.5.md canonical: https://modelslab.com/models/z-ai/z-ai-glm-4.5.md type: product component: Playground/LLM/Index generated_at: 2026-06-03T20:23:05.476620Z --- Z.ai: GLM 4.5 --- [LLMs.txt](https://modelslab.com/models/open_router/z-ai-glm-4.5/llms.txt) [.md](https://modelslab.com/models/z-ai/z-ai-glm-4.5.md) Z.ai: GLM 4.5 --- 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 z-ai z-ai-glm-4.5 Copy model ID PricingInput $0.60 / 1M tokens Output $2.20 / 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) [#### open\_router/ReMM SLERP 13B undi95-remm-slerp-l2-13b From $0.55/M tokens](https://modelslab.com/models/open_router/undi95-remm-slerp-l2-13b) [#### open\_router/NVIDIA: Nemotron 3 Nano 30B A3B nvidia-nemotron-3-nano-30b-a3b From $0.13/M tokens](https://modelslab.com/models/open_router/nvidia-nemotron-3-nano-30b-a3b) [#### open\_router/Amazon: Nova Micro 1.0 amazon-nova-micro-v1 From $0.09/M tokens](https://modelslab.com/models/open_router/amazon-nova-micro-v1) [#### open\_router/Anthropic: Claude Opus 4.7 (Fast) anthropic-claude-opus-4.7-fast From $90.00/M tokens](https://modelslab.com/models/open_router/anthropic-claude-opus-4.7-fast) [#### openai/GPT 5.1 gpt5.1 From $5.63/M tokens](https://modelslab.com/models/openai/gpt5.1) [#### open\_router/Z.ai: GLM 4.5 Air z-ai-glm-4.5-air From $0.49/M tokens](https://modelslab.com/models/open_router/z-ai-glm-4.5-air) [#### open\_router/Cohere: Command R (08-2024) cohere-command-r-08-2024 From $0.38/M tokens](https://modelslab.com/models/open_router/cohere-command-r-08-2024) [#### open\_router/Google: Gemma 4 26B A4B google-gemma-4-26b-a4b-it From $0.20/M tokens](https://modelslab.com/models/open_router/google-gemma-4-26b-a4b-it) [#### 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/Anthropic Claude Haiku Latest anthropic-claude-haiku-latest From $3.00/M tokens](https://modelslab.com/models/open_router/anthropic-claude-haiku-latest) [#### modelslab/Modelslab: Uncensored Chat uncensored-chat From $0.75/M tokens](https://modelslab.com/models/modelslab/uncensored-chat) [#### open\_router/Google: Gemini 3.1 Flash Lite Preview google-gemini-3.1-flash-lite-preview From $0.88/M tokens](https://modelslab.com/models/open_router/google-gemini-3.1-flash-lite-preview) [#### open\_router/Anthropic: Claude 3 Haiku anthropic-claude-3-haiku From $0.75/M tokens](https://modelslab.com/models/open_router/anthropic-claude-3-haiku) [#### open\_router/Google: Gemini 2.5 Flash google-gemini-2.5-flash From $1.40/M tokens](https://modelslab.com/models/open_router/google-gemini-2.5-flash) [#### open\_router/Amazon: Nova Pro 1.0 amazon-nova-pro-v1 From $2.00/M tokens](https://modelslab.com/models/open_router/amazon-nova-pro-v1) [#### 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) [#### open\_router/Nex AGI: DeepSeek V3.1 Nex N1 nex-agi-deepseek-v3.1-nex-n1 From $0.32/M tokens](https://modelslab.com/models/open_router/nex-agi-deepseek-v3.1-nex-n1) [#### open\_router/Mistral: Mistral Large 3 2512 mistralai-mistral-large-2512 From $1.00/M tokens](https://modelslab.com/models/open_router/mistralai-mistral-large-2512) 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 --- GLM-4.5 is our latest flagship foundation model, purpose-built for agent-based applications. It leverages a Mixture-of-Experts (MoE) architecture and supports a context length of up to 128k tokens. GLM-4.5 delivers significantly... ### Technical Specifications Model IDz-ai-glm-4.5 CategoryLLM Models TaskText Generation Price$1.4 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 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", "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 API costs $1.400000 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 [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 FAQ --- ### What is Z.Ai: GLM 4.5? GLM-4.5 is our latest flagship foundation model, purpose-built for agent-based applications. It leverages a Mixture-of-Experts (MoE) architecture and supports a context length of up to 128k tokens. GLM-4.5 delivers significantly... ### How do I use the Z.Ai: GLM 4.5 API? You can integrate Z.Ai: GLM 4.5 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" 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 cost? Z.Ai: GLM 4.5 costs $1.400000 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 model ID? The model ID for Z.Ai: GLM 4.5 is "z-ai-glm-4.5". Use this ID in your API requests to specify this model. ### Does Z.Ai: GLM 4.5 have a free tier? Yes, ModelsLab offers a free tier that lets you try Z.Ai: GLM 4.5 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*