macOS processes › Siri and intelligence
What is triald on Mac?
triald downloads and manages small configuration and model packages that Apple uses to tune and test features like Siri, Spotlight and keyboard suggestions without a full macOS update.
What it does
Apple uses a system called Trial to roll out settings, experiments and on-device models gradually. triald fetches what applies to your Mac, based on things like language, region and account, and keeps it current. Its launch settings show it reacting to changes such as adding an Apple Account or changing keyboards or dictation language.
Why it gets busy
- Changing your language, region, keyboards or dictation settings.
- Signing in to or out of an Apple Account.
- Downloading new packages after a macOS update.
Why is triald using so much CPU?
triald is fetching or applying Apple's feature configuration and model packages. It's brief after updates or settings changes.
Is it safe to quit?
macOS restarts it, and it picks up its downloads later.
How to calm it down
- Give it time after updates or settings changes. Its work is usually brief.
- If it's still going hours later, restart the Mac.
In SystemWatch
SystemWatch explains triald in plain words, and History shows whether its bursts followed a macOS update or a settings change.
