GLM-ASR-2512, Explained Simply
What GLM-ASR-2512 is, what it does well, and what it costs — released 2025-12-10 by Z.ai.
- GLM-ASR-2512 is a new speech-to-text tool from Z.ai that turns spoken audio into written text.
- It is highly accurate, even when people speak different languages or have heavy accents.
- It is great at understanding specialized vocabulary and custom word lists.
Want a heads-up when GLM updates?
We email you the moment a new GLM version drops — plus plain-English release notes like these. No spam.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
GLM-ASR-2512 is an ASR (Automatic Speech Recognition) model. That just means it is a type of AI designed to listen to spoken audio and type out what it hears. This is a tool that anyone who needs fast, accurate transcriptions would want, like students recording lectures, podcasters making subtitles, or businesses translating meetings.
What it does well
This model is built to handle the messy reality of how people actually talk. It does a great job understanding different languages and strong accents, which often confuse other speech tools. It also shines at recognizing specialized terminology—those tricky, uncommon words used in science, medicine, or tech. Plus, it supports custom dictionaries, meaning you can give it a specific list of names or unique words ahead of time so it knows exactly how to spell them.
What it costs and what it can handle
The creators measure this model's accuracy using something called a Character Error Rate, which scored 0.0717. That number means out of every 1,000 characters it transcribes, it only makes about 7 mistakes. That is considered industry-leading accuracy.
Worth knowing
If you want to use this model, you will need to check Z.ai's official documentation. The announcement does not mention exactly how long of an audio file it can handle at once, what languages are specifically supported, or how much it costs to use, so you will need to look up those details before getting started.
This is our plain-language summary. Read the complete, official notes on the GLM official changelog ↗.
Google Calendar