Z.AI Free API Tier
Free API inference on select GLM text and vision Flash models
What you get from Z.AI Free API Tier for free
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.
Models served free
Limits as the provider publishes them; a dash means none is published.
| Model | Context | RPM | RPD | TPM | Tools | Vision |
|---|---|---|---|---|---|---|
| GLM-4.7-FlashPriced Free; concurrency set by the platform per plan | 200k | — | — | — | — | — |
| GLM-4.5-FlashPriced Free | — | — | — | — | — | — |
| GLM-4.6V-FlashFree vision model | — | — | — | — | — | yes |
History
Verified by a person on · last automated check : no change found. Automated findings never change this page until a person confirms them (how we verify).
- Verifiedby a person
- Listedby a person
Still works?
Work at docs.z.ai? Add an aifree.dev badge
<a href="https://aifree.dev/offer/z-ai-free-api-tier"><img src="https://aifree.dev/badge/z-ai-free-api-tier" alt="Z.AI Free API Tier on aifree.dev" height="20"></a>[](https://aifree.dev/offer/z-ai-free-api-tier)Step-by-step guide
Compared in
More free API credits
Related offers
Free tier - Free models: DeepSeek-V4-Flash, DeepSeek-V4-Flash-Vision-Exp, Qwen3.8-Flash-Next, MiniCPM5-2B
100,000 tokens/day - 100,000 ₳nyTokens per day
30,000,000 tokens/month - 30M tokens/month on the free tier (input + output, incl. reasoning)
$200 - $200 credit valid for 30 days only
500,000 tokens/month - 0.5M tokens per month, resets monthly