# GLM-5.3 model not found (it worked the day it came out)

**URL:** <https://forum.cursor.com/t/glm-5-3-model-not-found-it-worked-the-day-it-came-out/170764>\
**Category:** Bug Reports\
**Created:** [September 6, 2026, 8:26am UTC](https://forum.cursor.com/t/glm-5-3-model-not-found-it-worked-the-day-it-came-out/170764 "2026-09-06T08:26:00Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![mohitjain](https://sea3.discourse-cdn.com/cursor1/user_avatar/forum.cursor.com/mohitjain/32/100229_2.png) [@mohitjain](https://forum.cursor.com/u/mohitjain)\
**Post date:** [September 7, 2026, 8:19am UTC](https://forum.cursor.com/t/glm-5-3-model-not-found-it-worked-the-day-it-came-out/170764/7 "2026-09-07T08:19:18Z")

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Hey @Andreul369, GLM-5.3 and 5.3 Flash have never been built-in Cursor models (the native GLM is 5.2). What you used was a custom model on your own API key, so “model not found” is coming back from your provider, not Cursor.

To restore it in Cursor Settings → Models:

1. Re-enter your provider key under API Keys (OpenAI field) and turn it on.
2. Set Override OpenAI Base URL to match your key: Z.ai Coding Plan `https://api.z.ai/api/coding/paas/v4`, or pay-per-token Z.ai `https://api.z.ai/api/paas/v4`. Wrong endpoint for your key type returns “model not found”.
3. Add the custom model with the exact case-sensitive ID: `glm-5.3` or `glm-5.3-flash` (OpenRouter: `z-ai/glm-5.3-flash`).
4. Check your plan/credits are still active on the provider’s side (a lapsed plan also returns “model not found”).

Native GLM 5.3 is a tracked request with no date to share, but you can vote here: [New model request GLM-5.3](https://forum.cursor.com/t/new-model-request-glm-5-3/169043)

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