GLM 5.3

GLM 5.3 is a Z.ai model family with 2 variants (standard and Flash) available in Quad Chat, with up to 1M tokens of context, image input, tool calling and adjustable reasoning.

GLM 5.3 at a glance

LabZ.ai
Available onFree plan
Context windowUp to 1M tokens
Max outputUp to 1M tokens
Image inputSome variants
Tool callingYes
ReasoningYes
Privacy lanePrivate (Zero Data Retention)

GLM 5.3 variants

ModelContextPlanAPI list price per 1M tokens (in / out)
GLM 5.31MFree plan$1.20 / $4.00
GLM 5.3 Flash1MFree plan$0.15 / $0.50

How to use GLM 5.3 in Quad Chat

  1. Create a free account or sign in.
  2. Open the model picker and choose GLM 5.3.
  3. Ask, attach files, or compare the answer with another model.

Sign in or create a free account · Compare plans

Frequently asked questions

Can I use GLM 5.3 for free?

Yes. GLM 5.3 is available on the Quad Chat Free plan, which needs no credit card and includes 100 monthly credits shared across every model. Larger requests use more credits, and paid plans from $8/month raise the allowance.

What is the context window of GLM 5.3?

Context windows differ by variant: GLM 5.3 1M, GLM 5.3 Flash 1M tokens, according to the model catalog Quad Chat routes through. Files, pasted text and earlier messages all count toward the window.

Does GLM 5.3 support images, tools and reasoning?

GLM 5.3 Flash accept images as input; the other variants are text-only. It supports tool calling. It can reason before it answers, with adjustable effort (low, high and max). You can switch to another model in the same conversation at any time.

Is GLM 5.3 private in Quad Chat?

GLM 5.3 runs on the Quad Chat Private Lane, routed to providers under Zero Data Retention terms. Quad Chat does not train models on your conversations, encrypts chats in transit and at rest, and lets you export or delete them at any time.

How much does GLM 5.3 cost in Quad Chat?

Quad Chat plans have a flat monthly price and draw usage from shared credits, not a per-token bill. For reference, the provider's API list price is from $0.15 to $1.20 per million input tokens across variants.

Can I compare GLM 5.3 with other models?

Yes. Send one prompt to GLM 5.3 and one or two other models, such as GPT-6.1 Sol, Gemini 4 Argon and Claude Haiku 5.5, and compare the answers side by side in the same thread. You can also switch models mid-conversation without losing your files or context.

Related models

All AI models in Quad Chat