Jev for beginners: how to use it and what to build

Jev is TypeSafe AI’s new decision model. It returns type-safe structured values (a choice, a score, a probability) instead of generated text, at 4 cents per million input tokens with no output charge. This week I ran it on five real projects: PR categorization, a meta-analysis of my own Claude and Codex sessions, Gmail triage, the ChatPRD product insights graph, and a live audience dashboard built from 4,500 YouTube comments.

What you’ll learn:
• What makes Jev fundamentally different from every other model I’ve used
• How I analyzed 1,700 PRs for 9 cents and what I found out about where my engineering effort actually went
• The personal meta-analysis you can run on your own Claude and Codex sessions right now
• Why I stopped using Jev alone, and what I pair it with now
• How I turned 4,500 YouTube comments into a searchable audience dashboard for almost nothing
• The real-time app I built in an afternoon that shows something surprising about Jev’s speed
• Why Jev’s pricing model is different from any LLM I’ve used, and what it makes practical to build
• The ChatPRD product insights project: 1,100 signals, 200,000 classifications, and what it cost me
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OpenArt (openart.ai/suite/chat?utm_source=online&ut…)—An all-in-one AI creation platform for images, videos, music, audio, and more
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In this episode, we cover:
(00:00) Jev launch and what makes it different from every other model
(02:49) Type-safe values explained
(05:28) Understanding Jev outputs
(07:39) Use case 1: PR categorization and pairwise clustering
(11:12) Use case 2: analyzing your own local Claude Code and Codex sessions
(13:00) Use case 3: Gmail triage with Jev scoring and LLM follow-up
(14:30) Use case 4: ChatPRD’s product insights graph
(18:17) Demo: How I AI audience signal dashboard
(22:14) Demo: voice-to-color emotion-mapping app
(25:16) Jev week recap and what’s coming in episode 2
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Tools referenced:
• Jev (TypeSafe AI): typesafe.ai
• Vercel: vercel.com/ai
• GitHub API: docs.github.com/en/rest
• YouTube Data API v3: developers.google.com/youtube/v3
• OpenAI Realtime Voice API: platform.openai.com/docs/guides/realtime
• Gemini 3.5 Flash-Lite: ai.google.dev/gemini-api/docs/models/gemini-3.…
• API Ninjas Quotes API: api-ninjas.com/api/quotes
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Where to find Claire Vo:
ChatPRD: chatprd.ai
Website: clairevo.com
LinkedIn: linkedin.com/in/clairevo
X: x.com/clairevo
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