# GLM 5.3 and GLM 5.3 Flash in Notion Agents

By Steven Van · 2026-09-19

Notion adds the open-weight GLM 5.3 and GLM 5.3 Flash models as options for Personal and Custom Agents.

Notion has added **GLM 5.3** and **GLM 5.3 Flash**, both open-weight models, as options for Personal and Custom Agents inside [Notion](<https://creatorstoolbox.com/tools/notion>).

Users setting up an agent can now pick one of these models alongside Notion's existing choices, per the [announcement](<https://x.com/i/status/2101332618830639465>).

[Source post](https://x.com/i/status/2101332618830639465)

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[Original source](<https://x.com/i/status/2101332618830639465>)

[Read GLM 5.3 and GLM 5.3 Flash in Notion Agents on Creators Toolbox](<https://creatorstoolbox.com/blog/notion-glm-5-3-and-glm-5-3-flash-in-notion-agents>)

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Canonical source: https://creatorstoolbox.com/blog/notion-glm-5-3-and-glm-5-3-flash-in-notion-agents