GLM 5.3
zai/glm-5.3GLM 5.3 (zai/glm-5.3) is an AI model from Zai with a 1,310,720-token context window and 131,072 max output tokens, priced at $0.65/1M input and $2.05/1M output tokens. Available via the haimaker.ai OpenAI-compatible API.
Pricing schedule
This model is running a promotional rate. Standard pricing applies once the promotion ends.
Reference rates per 1M tokens. A dash means the rate is unavailable or varies by provider — it does not mean free.
- Promotional rate
- Free
- Standard rate
- $0.65 /1M input·$2.05 /1M output
Overview
GLM 5.3 is a chat model by Zai. It supports a 1.3M token context window. Supports function calling, reasoning.
Features & Capabilities
| Mode | Chat |
| Context Window | 1,310,720 tokens |
| Max Output | 131,072 tokens |
| Function Calling | Supported |
| Vision | Not supported |
| Reasoning | Supported |
| Web Search | Not supported |
| Url Context | Not supported |
API Usage
from openai import OpenAI
client = OpenAI(
base_url="https://api.haimaker.ai/v1",
api_key="YOUR_API_KEY",
)
response = client.chat.completions.create(
model="zai/glm-5.3",
messages=[
{"role": "user", "content": "Hello, how are you?"}
],
)
print(response.choices[0].message.content)Frequently Asked Questions
What is the context window of GLM 5.3?
GLM 5.3 (zai/glm-5.3) has a 1,310,720-token context window and supports up to 131,072 output tokens per request.
How much does GLM 5.3 cost?
GLM 5.3 is priced at $0.65 per 1M input tokens and $2.05 per 1M output tokens when accessed via the haimaker.ai OpenAI-compatible API. A promotional rate of free access is currently active.
What features does GLM 5.3 support?
GLM 5.3 supports function calling, reasoning.
How do I use GLM 5.3 via API?
Send requests to https://api.haimaker.ai/v1/chat/completions with model "zai/glm-5.3" using any OpenAI-compatible SDK. Authentication uses a Bearer API key from https://app.haimaker.ai.
Use GLM 5.3 with the haimaker API
Available via the haimaker.ai OpenAI-compatible API.