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Chat model · Zhipu AI

GLM 5.3New

Included in Pro · came out August 2026

Think it through in words: plans, explanations and code

GLM 5.3 is the full GLM model from Zhipu AI that follows GLM 5.2 in chatmodel. It thinks before it answers and helps with code. It works with what you type, not with photos or files.

Chat with GLM 5.3

GLM 5.3 in numbers

What you can give it

  • Your wordsYes
  • PhotosNot this one
  • PDFs and filesNot this one
  • The webNot this one

Real answers

See how GLM 5.3 answers

We asked it the same everyday questions as every other model in chatmodel, one try each. This is exactly what came back.

My neighbour watered my plants for two weeks while I was away. Write a short, warm thank-you note I can leave with a small gift. Keep it under 80 words.

Dear [Name],

I'm home — and my plants are alive and thriving, all thanks to you! Two weeks is a real favour, and knowing you were looking after things made my time away so much easier.

Please enjoy this little gift as a thank-you. I feel very lucky to have such a kind neighbour.

With gratitude, [Your name]

Answered in about 11 seconds · 58 words

Ask it yourself

The GLM family in chatmodel

The newest is GLM 5.3 Flash. Ordered by release date.

  1. February 2026GLM 5
  2. April 2026GLM 5.1
  3. June 2026GLM 5.2
  4. August 2026NewGLM 5.3You're here
  5. August 2026NewestGLM 5.3 Flash

What it's good for

Try it with one of these

Press “Try this” and chatmodel opens with GLM 5.3 selected and the message already written. Change any word you like.

Plan a house move

“We're moving house in eight weeks, two adults and a dog. Make me a week-by-week plan: what to book, what to pack when, who to tell about the new address and what to do on the day.”

Try this

Explain a pension

“Explain, step by step and in plain words, the difference between a workplace pension and a personal pension, and three questions I should ask before I retire.”

Try this

Make my email clearer

“Rewrite this email to my landlord so it's clear and polite but firm about the repair I need. Keep it under 150 words. Here it is:”

Try this

A simple club website

“Write the code for a simple one-page website for our walking club: next walks with dates, a short welcome and a contact form. Explain how to put it online for free, in simple steps.”

Try this

In plain words

GLM 5.3 is a chat assistant from Zhipu AI and the full model that follows GLM 5.2 in chatmodel. It thinks before it answers and helps with code.

In chatmodel it works with text only. It doesn’t understand photos or read PDF files, so paste the words you want it to work with.

How to get the most out of it

  1. Paste the text in. Since it doesn’t take files, copy the email or the passage into your message.
  2. Give it the full brief. Dates, people, budget. Planning gets better with detail.
  3. Ask for a plan by week or by step. It handles order well.
  4. For code, say what you use. “Windows”, “Google Sheets”, “no coding experience”.

How it compares with the rest of the family

GLM 5.3 Flash is the lighter, quicker version, and it understands photos. GLM 5.2 also reads photos. GLM 5 and GLM 5.1 are the ones that read PDFs. Pick 5.3 when your question is in words and you want the step up from GLM 5.2.

When to pick another model

For writing that sounds warm and personal, try Claude Sonnet 5 or the Help me write tool. For trip ideas, our plan a trip guide has messages ready to copy.

Other models worth a look

GLM 5.3 Flash

Zhipu AI

Read the guide

GLM 5.2

Zhipu AI

Read the guide

GLM 5.1

Zhipu AI

Read the guide

Frequently asked questions

Is GLM 5.3 newer than GLM 5.2?

Yes. It's the full model that follows GLM 5.2. GLM 5.3 Flash is its lighter, quicker sibling from the same version.

Can GLM 5.3 read photos or PDFs?

Not in chatmodel. It works with text you type or paste. For photos, try GLM 5.2 or GLM 5.3 Flash. For PDFs, GLM 5.1.

Is it good for code?

It helps with code, from spreadsheet formulas to small websites, and can explain each step.

Can GLM 5.3 search the web?

Not in chatmodel. Share any recent facts yourself.

All of these models, in one place

Chat, images, video and tools with the best AI models. Switch between them whenever you want.

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