Jev, an AI tool, rated 100 emails by importance in under half a second
The test cost a fraction of a penny, and the ratings matched the tester's own on all 100.
The AI Daily Brief (Formerly The AI Breakdown): Artificial Intelligence News and Analysis · How People Are Actually Using JevJonathan Yunikowski was staring at the same problem every office worker knows. His inbox was stacked newest first, with the urgent, the trivial, and the junk all jumbled together by time.
He asked a simple question. As he put it, "Every email app shows your inbox in reverse chronological order. What if it was live prioritized by importance instead?"
To try it, Yunikowski, an early tester of a new artificial intelligence tool called Jev, gave the software one job for each message. Rate how important it is.
Jev is not built to write text like a chatbot. It was built by a company called Typesafe to make fast, instinctive judgments, the kind of snap calls people make when they glance at something and decide what it is and where it goes. A good job for it is one where software repeatedly reads something, makes a small judgment, then takes a predictable next step.
That narrow job is what made the test striking. In Yunikowski's experiment, Jev rated 100 emails in 453 milliseconds, or under half a second, for a fraction of a penny, and Yunikowski also reported that Jev's ratings matched his own on all 100.
The result matters because sorting email is the classic triage chore. It is the repeated cycle of asking what something is and where it should go, then acting on the answer.
He was one of several people testing the same kind of one-question triage. Others were asking whether a downloaded file was an invoice, whether a link was malicious, or how a new sales lead should be routed.
Nathaniel Whittemore, a writer who has been tracking how people use Jev, said, "This is a use case that I want right now, not tomorrow." He added, "In fact, I want it yesterday, and so do all of the people who are sitting there beating their heads against the wall because I haven't responded to them yet."
Yunikowski's test did not build the full product. It did not reorder a live inbox or answer messages. It showed only that the judgment step, deciding what matters, could be done in one quick pass.
Questions people ask
What exactly is Jev?
Jev is a specialized AI model from Typesafe designed for judgment rather than writing. Instead of drafting text like a chatbot, it answers small questions such as how important is this, which category fits best, or is this true, returning a score or probability.
How would an importance-sorted inbox actually work?
Each incoming message would be sent to the model with its subject and body, along with a definition of importance. The model would return a rating for every email, and the email app would then sort or flag messages by that rating instead of by arrival time.
Would this mean AI reads all my email?
Yes, in practice the system would need access to message text to rate it. Most such tools run in the cloud today, so privacy depends on the provider's data retention and security policies, and on whether your employer or email service allows that access.