Model board / GLM-5.3

Verified 2026-10-22 against the pages listed below. Prices are USD per 1M tokens, list rate — no committed-use, enterprise or volume discount.

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

Z.ai's caching doc describes implicit caching on all mainstream models, without naming 5.3 individually

Licence: GLM-5.3 License — MIT-style grant, plus a Z.ai security review before commercial use by a MaaS business above $10B revenue over 12 months

Watch out

Read the licence before you ship. The GLM-5.3 License is an MIT-style grant with one extra condition: a model-as-a-service business with more than $10B revenue over 12 months must pass a Z.ai security review before commercial use. GLM-5.2 and GLM-5.3-Flash are plain MIT. 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.

Nothing has moved since we started tracking it.

Where these numbers came from

• https://docs.z.ai/guides/overview/pricing
• https://docs.z.ai/guides/llm/glm-5.3
• https://huggingface.co/zai-org/GLM-5.3
• https://docs.z.ai/guides/capabilities/cache

No number on this page was written that was not read from one of those pages on 2026-10-22. 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

• The name stayed. The model didn't. — 2026-09-10
• 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 76 others on the model board, refreshed every week. The same data as JSON, and the terms for using it, are at /board-data.