Engineering Blog

Notes from the build

Engineering insights, architecture deep-dives, and product notes from the Vesprr Software team.

#Jev

Zohaib MasoodNov 1, 2026

Why you're using Jev wrong: four fixes from TypeSafe's docs

Most bad Jev results come from an unpinned alias, maths left to the model, vague questions and one threshold for every action. TypeSafe's docs give the fixes.

AI modelsJevJev limitations

Uzair bin HaroonOct 2, 2026

What is Cloudflare Clef? A decision model for your workflows

Clef returns typed decisions from text or images. Try it for routing and classification through Workers AI, or run the open weights yourself.

AI modelsClefCloudflare Clef

Uzair bin HaroonSep 24, 2026

What is Jev? TypeSafe AI's model that returns types, not text

Jev returns a typed value and its probabilities instead of a sentence, at $0.042 per million input tokens. What it does, what it gets wrong, who it suits.

AI modelsJevTypeSafe AI

Sadaf MasoodSep 16, 2026

Jev pricing: $0.042 per million input tokens, output free

TypeSafe AI's Jev charges $0.042 per million input tokens and nothing for output. A hundred thousand documents classified for $8.40, and what is unproven.

AI modelsJevTypeSafe AI