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GLM API Pricing
Transparent pricing with no hidden fees. Pay only for what you use.
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GLM API - Zhipu Language Models
Access Zhipu AI's GLM family from GLM-4.6 to GLM-5.3. Frontier bilingual models optimized for Chinese and English with strong reasoning capabilities.
50K+
Active Users
99.9%
Uptime
2x
Faster
70%
Cost Savings
GLM API Key Features
What makes GLM models a strong choice for bilingual AI
Bilingual Excellence
Strong Reasoning
Rapid Evolution
Natural Dialogue
Code Capabilities
Safe & Aligned
Tool Use
Long Context
GLM API Use Cases
How teams use GLM models in production
Bilingual Chat
Content Writing
Code Assistant
Document Summarization
Education
Knowledge Q&A
Getting Started with GLM API
Start using Zhipu's models in minutes
Sign up & Add funds
Create your free 光谱汇深 account and top up your balance.
Get API Key
Generate an API key to access GLM models programmatically.
Start Building
Use the playground above or integrate via the OpenAI-compatible API.
User Reviews
What developers say about our GLM API
“GLM-5 handles bilingual customer support better than any other model we've tested.”
Wei Zhang
Support Manager
“The rapid iteration from GLM-4.5 to GLM-5 shows Zhipu is serious about quality. Each version is noticeably better.”
Alex Chen
AI Engineer
“GLM-4.5-Air is our choice for high-volume Chinese text processing. Great quality at low cost.”
Sarah Li
Backend Developer
“We use GLM for Chinese content moderation. It understands context and nuance well.”
Mike Wang
Trust & Safety Lead
“Clean API, competitive pricing, and reliable uptime. Easy choice for our bilingual chatbot.”
Emily Zhou
Product Manager
“GLM-4.7 strikes a great balance between speed and quality for our summarization pipeline.”
David Liu
ML Engineer
Frequently Asked Questions
Common questions about using the GLM API
What GLM models are available?
We offer the latest GLM-5.3 and GLM-5.3 Flash, plus GLM-5.2, GLM-5.1, GLM-5, GLM-4.7, and GLM-4.6.
What is GLM-5.3?
GLM-5.3 is the latest model from Zhipu AI, and GLM-5.3 Flash is its faster, lower-cost Flash variant. Earlier GLM-5.x and GLM-4.x models remain available.
How is pricing calculated?
Token-based pricing (input + output). GLM-5.3 Flash is the low-cost option, and GLM-5.3 is the premium tier. Check the pricing table above for specific rates.
Is the API compatible with OpenAI's SDK?
Yes. GLM models use the standard chat completions format and work with the OpenAI SDK.
Is my data secure?
Yes. Your API data is not stored or used for training. All requests are encrypted.
Which GLM model should I choose?
GLM-5.3 Flash for fast, low-cost tasks. GLM-5.3 for maximum quality. Earlier GLM-5.x and GLM-4.x models remain available — compare their prices in the table above.
How much does the GLM API cost?
The Zhipu AI GLM API is billed per million input and output tokens. The pricing table on this page lists every available model, and the prices shown are Gold member rates (20% off). Platinum and Diamond members save even more, up to 28%, and you only pay for successful requests.
How do I get a GLM API key?
Sign up for 光谱汇深, open the API Keys page in your dashboard, and create a key. The same key works for the Zhipu AI GLM API and every other model on the platform, with pay-as-you-go billing and no subscription.
How do I use the GLM-5.3 API?
Call 光谱汇深's OpenAI-compatible Chat Completions endpoint with your 光谱汇深 API key and set model to glm-5.3 or glm-5.3-flash. The rest of the GLM 5 API lineup (glm-5, glm-5.1 and glm-5.2) uses the same request format, so switching only means changing the model ID. Parameters and code examples are in the 光谱汇深 docs (docs.callhub.cn).
How can I contact support for help?
You can submit a support ticket from the dashboard or email us at support@apimart.ai. Our team will get back to you as soon as possible.
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