GLM 5.4 FlashX release date
ForecastZ.ailanguage model
GLM 5.4 FlashX has not been announced. Based on how often Z.ai ships new versions, our forecast is that it arrives around December 2, 2026, probably between November 2, 2026 and January 16, 2027.
The forecast
| Most likely | December 2, 2026 |
|---|---|
| Window | November 2, 2026 to January 16, 2027 |
| Chance it arrives in that window | About 18% |
| Follows | GLM 5.3 FlashX (out September 18, 2026) |
| Based on | no earlier gap to learn from, so we assume about 75 days |
How we got this
Z.ai is the maker of GLM 5.3 FlashX. We look at the gaps between its earlier versions (GLM 5.3 FlashX, 2026-09-18) and project the next one. It is a guess from a pattern, not news: the maker has not said GLM 5.4 FlashX exists. This page turns into the launch page, with price and facts, as soon as the model shows up on OpenRouter, Hugging Face or GitHub.
Available now from Z.ai
GLM 5.3Z.ai · language model
Aug 18, 2026released
GLM 5Z.ai · language model
Feb 11, 2026released
GLM 4.5 AirZ.ai · language model
Jul 20, 2025released
GLM 4.7 FlashZ.ai · language model
Jan 19, 2026released
GLM 5.3 PrimeZ.ai · language model
Sep 23, 2026released
GLM 5.3 FlashXZ.ai · language model
Sep 18, 2026released
Predicted automatically by Modelcast. Not affiliated with Z.ai.