Jev Daily

Sentry spends $263 a day on Jev for 10M events

Sentry screens 10 million events a day through Jev at $263 a day to catch prompt injection, and is now testing its own classifier to hit the same accuracy for 90% less. The cheap model is cheap enough to meter, and still worth replacing.

Built with it

Treg ships open source people search on Jev at $0.0089 a lead

Treg released a Jev-powered people search that plugs into an agent, priced at $0.0089 per lead with the code open and no markup. He claims it is 85% cheaper than Clay and number one on people search bench accuracy. TypeSafe AI reposted it.

Treg
@treg_ai
X
Just $0.0089/lead, No more $600 subscriptions,
Oct 26, 2026 · View on X

Read the full story

Someone measured it

Sentry screens 10M events a day on Jev, now testing its own classifier

Sentry runs Jev over 10 million events a day to catch prompt injection before a coding agent reads an error report, and Cloudflare Developers says that costs $263 a day. The team is now testing its own classifier, aiming to match Jev's accuracy for 90% less. @grichadev wrote up how.

Cloudflare Developers
@CloudflareDev
X
The next prompt injection your coding agent reads might be an error report.
Oct 26, 2026 · View on X

Read the full story

Writing criteria

Theo turned his own agent rage moments into an 80-case tool eval

Theo rebuilt T3 Code's tool schemas against an eval he spent a week writing from the ways his agents used the tools plus every failure that annoyed him, and says tools are now used 4x better on 79% less context.

Theo - t3.gg
@theo
X
My eval had over 80 cases, and Opus failed over half of them.
Oct 27, 2026 · View on X

Read the full story

Get the next one by email

Jev, read daily so you do not have to. The builds, the benchmarks, the criteria that worked and the cases where it lost, from the people shipping on TypeSafe AI's System One model.