GLM-5.3

Name: GLM-5.3
Brand: Z.ai · GLM
Price: 4.4 USD

latest Z.ai · GLM

Verified 2026-09-03 against the pages listed below. Prices are USD per 1M tokens, list rate — no committed-use, enterprise or volume discount.

Input

$1.40

Cached input

$0.26

Cache write

—

Output

$4.40

Context window

1,000,000

Max output

128,000

Weights

open

Caching

unverified

same rate as GLM-5.2, which it supersedes. Cached-input storage is free for a limited time, per the pricing page

1M window and 128K max output, both stated first-party on docs.z.ai — GLM-5.2's window is only second-hand

the model page describes an "intelligent caching mechanism" for long context but does not say whether the caller controls it

Licence: GLM-5.3 Licence — a bespoke licence, not MIT

Not fully verified this pass. the Hugging Face card tags the weights 'glm-5.3' — demonstrably not the MIT that GLM-5.2 carries — but does not print the licence text, and docs.z.ai does not state a licence at all. Secondary reporting describes a revenue-gated condition on large Model-as-a-Service operators; that is not sourced to a page this board can cite, so the row states only what the card states: bespoke, and not MIT

Watch out

Read the licence before you ship. The Hugging Face card tags this "glm-5.3", a bespoke licence — not the MIT that GLM-5.2 carries — and the card does not print the terms, so what it permits is not something this board can state. Text-only: no vision, unlike much of the rest of this price band

What we would use it for

The current GLM flagship, with a first-party 1M window on the record

What this has cost, week by week

Output price at each refresh since 2026-09-03. A vendor change is the provider changing its price. Our correction means this board changed what it prints and the provider's charge did not move — the two are never merged, because publishing the second as the first would be a price rise that never happened.

09-03 $4.40

Nothing has moved since we started tracking it.

Where these numbers came from

No number on this page was written that was not read from one of those pages on 2026-09-03. If one is wrong, send us the source URL and it is corrected in the next weekly refresh, with a changelog line saying what was wrong — contact@naderu.com.

Discussed in Naderu Weekly

Nobody changed a price this week — 2026-09-03
The price has a clock on it — 2026-08-27

The rest of the board

This row sits alongside 53 others on the model board, refreshed every week. The same data as JSON, and the terms for using it, are at /board-data.