---
title: "GLM-4.5-Flash — LLM-TEST.com"
url: /models/glm-4-5-flash/
canonical_url: https://llm-test.com/models/glm-4-5-flash/
language: en
type: model
summary: "The older free (rate-limited) Flash model that popularized no-cost GLM access. It is still a usable open-weight option for simple tasks, though newer Flash models surpass it."
last_updated: "2026-11-05"
---

# GLM-4.5-Flash

_Zhipu AI · Budget · open weights_

The older free (rate-limited) Flash model that popularized no-cost GLM access. It is still a usable open-weight option for simple tasks, though newer Flash models surpass it.

## At a glance

- Released: Sep 2, 2025
- Provider: Zhipu AI
- Context window: 128,000 tokens
- Max output: 8,000 tokens
- Modalities: Text → text
- Knowledge cutoff: April 2025
- API model ID: `glm-4.5-flash`
- License: Open weights (MIT)

## Pricing

Free to call (rate-limited); open weights can be self-hosted at no per-token cost.

## Best use cases

- **Simple automation** — Handles basic rewriting and tagging at zero cost.
- **Fallback tier** — A free backstop for low-stakes requests.
- **Edge self-hosting** — Small enough to run on modest local hardware under MIT.

## Strengths

- Free to call (rate-limited)
- Lightweight
- Open weights

## Limitations

- Oldest cutoff of the Flash line
- Very short max output

## Where to get access

- Consumer app: Z.ai chat (GLM) — https://chat.z.ai
- API: the Z.ai API console — https://z.ai/manage-apikey/apikey-list
- Also available: open weights on Hugging Face (GLM)
- Docs: https://docs.z.ai

Full comparison and live pricing: https://llm-test.com/ · directory: https://llm-test.com/models/