Z.AI Free API Tier
- Expiry date
- No fixed end date
- Updated
- Jan 1, 2026
Available models (3)click to copy
Overview
Z.AI provides free API access to select high-speed models in its GLM lineup, covering both text and vision modalities without requiring upfront payment for token usage.
Available Free Models
- GLM-4.7-Flash: Fast text generation model with $0 cost for input, cached input, cached input storage, and output tokens.
- GLM-4.5-Flash: Lightweight text processing model with zero token charges across all standard inputs and outputs.
- GLM-4.6V-Flash: High-speed multimodal vision model supporting image understanding tasks entirely free of charge.
Additional Free Features
- Cached Input Storage: Limited-time free storage for context caching across multiple flagship models, including GLM-5.3, GLM-5.2, GLM-5.1, and GLM-4.6V.