GLM 4.5 Flash API
About
Build advanced reasoning agents with GLM 4.5 Flash, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers available completely free of charge, native tool calling support. Access GLM 4.5 Flash via the EmpirioLabs AI API with up to 98K output tokens.
Capabilities
Input Modalities
text
Output Modalities
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Reasoning
Yes
Structured Output
Yes
Tool Use
Yes
WeightsClosed
Temperature
Adjustable
Attachment
Not Supported
Limits
Context Window
200K
Tokens
Input Limit
200K
Tokens
Max Output
98K
Tokens
Pricing
Standard (per 1M tokens)
Input
Free
Output
Free
Frequently Asked Questions
GLM 4.5 Flash by EmpirioLabs AI costs Free per 1M input tokens and Free per 1M output tokens.
Model Details
ID
glm-4-5-flash
Provider
EmpirioLabs AIFamily
glm-flash
Release Date
Jul 28, 2025
Knowledge Cutoff
Apr 1, 2025
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
EMPIRIOLABS_API_KEY
API Base URL
https://api.empiriolabs.ai/v1