---
title: "GLM-5.3-Flash — LLM-TEST.com"
url: /models/glm-5-3-flash/
canonical_url: https://llm-test.com/models/glm-5-3-flash/
language: en
type: model
summary: "A distilled, low-latency sibling of GLM-5.3 tuned for high-throughput everyday work. It keeps much of the family's instruction-following at a fraction of the flagship price."
last_updated: "2026-11-05"
---

# GLM-5.3-Flash

_Zhipu AI · Fast · open weights_

A distilled, low-latency sibling of GLM-5.3 tuned for high-throughput everyday work. It keeps much of the family's instruction-following at a fraction of the flagship price.

## At a glance

- Released: Sep 18, 2026
- Provider: Zhipu AI
- Context window: 128,000 tokens
- Max output: 32,000 tokens
- Modalities: Text → text
- Knowledge cutoff: June 2026
- API model ID: `glm-5.3-flash`
- License: Open weights (MIT)

## Pricing

- Standard: $0.15 input / $0.50 output per 1M tokens
- Example: a 1,500-token prompt + 650-token answer ≈ $0.0005 (standard)

## What's new vs GLM-4.7-Flash (May 2026)

- Better reasoning and formatting than GLM-4.7-Flash
- Carries the newer June 2026 knowledge cutoff
- No longer free to call, unlike the 4.7-Flash it descends from

## Best use cases

- **Chat and support** — Handles high volumes of routine conversations at low latency.
- **Classification** — Tags, routes, and extracts structured fields cheaply at scale.
- **Drafting** — Produces first-pass copy and summaries quickly for human review.

## Strengths

- Very low latency
- Cheap per token
- Open weights

## Limitations

- Weaker on hard multi-step reasoning
- Smaller context than the flagship

## 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/