Blog
What the builds in the catalog add up to. Every number is as reported by its author.
- 01
LLM as a Judge: How It Works and What It Costs in 2026
LLM as a judge, explained with real numbers. How the pattern works, where it breaks, and why fast decision models changed the cost math in 2026.
- 03
Jev Use Cases: What 600+ Real Builds Say People Actually Do With It
Every Jev use case worth knowing, drawn from 600+ cataloged builds: email triage, browser agents, real-time games, judging, trading, and the weird stuff.
- 04
Email Classification With AI: 500 Emails for 3.5 Cents
Email classification with AI, priced from real builds: 500 emails for 3.5 cents, fraud detection at 96/100 for $0.07. How AI email triage works with Jev.
- 05
Jev vs GPT: Decision Model vs Chat Model, Honestly Compared
Jev vs GPT is the wrong fight and the right question. When a decision model beats a chat LLM, when it loses badly, and when to run both. Real numbers.
- 06
How to Get Started With Jev (Without Cargo-Culting the Hype)
Getting started with Jev, TypeSafe AI's decision model: the mental model, how to design judge questions, your first project, and where the docs live.
- 07
Support Ticket Triage With AI: The Most Underrated Jev Use Case
Support ticket triage is the highest-ROI, least-hyped decision-model use case. How LLM routing works with Jev, what it costs, and the lead-scoring twin.
- 08
AI Browser Agents on Jev: 7-Second Tasks for Tenths of a Cent
AI browser agents when the decision layer costs $0.001 and answers instantly: flight searches in 7 seconds, Stagehand runs, screenshot-free computer use.
- 09
Jev Plays Doom: What Real-Time Games Prove About Instant AI
Builders have Jev playing Doom at 10 decisions a second, Mario, and Slay the Spire 2 at 0.7s a move. Why real-time games are the proof that matters.
- 10
Jev Pricing in Practice: What 600+ Real Builds Actually Cost
No marketing math: the reported real-world costs of Jev builds, from $0.0004 scoring runs to $7/hour Doom. Plus where it lands in the cheapest-LLM hunt.
- 11
AI Lead Scoring in 2026: 700 Leads in 40 Seconds for 9 Cents
AI lead scoring got cheap enough to run on every lead, live. How decision-model scoring works, what it costs, and how to replace the points spreadsheet.
- 12
LLM Evals: How to Build an Eval Suite That Actually Catches Regressions
A practical guide to LLM evals in 2026: what to test, how judge models grade at scale, and why cheap verdicts mean you can eval every commit.
- 13
How to Write LLM Judge Questions (The Skill Behind Every Good Build)
The craft behind every working judge pipeline: turning fuzzy criteria into rulings. Question patterns, worked examples, and the failure modes to avoid.
- 14
Jev Review: One Week and 600 Builds In, Is It Actually Good?
An honest Jev review from the site that catalogs every build: what the decision model is genuinely great at, where it disappoints, and who should skip it.
- 15
Jev Limitations: What It Can't Do (Read Before You Build)
The unhyped list: everything Jev can't do, where verdicts wobble, and the design mistakes that turn a great decision model into a bad experience.
- 16
Jev Alternatives: The Honest Landscape for Fast, Cheap AI Decisions
Every real alternative to Jev for decision workloads: small chat LLMs, trained classifiers, embeddings, rules, and when each one beats the decision model.
- 17
AI Content Moderation: Judging Every Post Instead of Sampling
AI content moderation used to mean sampling. At decision-model prices you judge every post, comment, and review live. Architecture, costs, and limits.
- 18
LLM Routing: The Cascade Architecture Eating Every AI Stack
LLM routing explained: how cheap-model-first cascades hit near-frontier accuracy at 1% of frontier cost, with confidence-gate design and real numbers.
- 19
Jev vs Claude Haiku vs Gemini Flash: The Small-Model Bracket
The comparison that actually matters: Jev against the fast cheap chat tiers. Interface, economics, and workload-by-workload calls, hype-free.
- 20
Structured Outputs From LLMs: Stop Parsing Prose for a Living
Structured outputs from LLMs: schema modes, their failure points, and why decision models sidestep the parsing problem for classification work.
- 21
LLM vs Traditional ML for Classification: An Honest Decision Guide
LLM or trained classifier? A 2026 guide: where each wins on cost, accuracy, and maintenance, and why decision models moved the crossover point.
- 22
AI Data Labeling: When the Judge Becomes the Annotator
AI data labeling flipped: models now label datasets for humans to audit. The workflow, the reported costs, and the quality controls that matter.
- 23
AI Agent Verification: Trust, but Judge
Agents claim they finished the task. Verification is how you know. The judge-layer pattern for checking agent work, with real builds and failure modes.
- 24
Natural Language Database Queries: WHERE jev(people, 'could work from home')
A Postgres extension puts an AI judge inside the WHERE clause: natural language filters over real rows, 129 rows a second. How it works, where it belongs.
- 25
Jev for Developers: Verdicts in Your CI, PRs, and Agent Loops
Where a decision model earns a place in a dev workflow: PR verdicts, test triage, CI quality gates, log classification, and context compaction.
- 26
Jev for Marketers: When Growth Decisions Stop Being Vibes
What the content-and-growth builds prove: ad teardowns at scale, pre-publish scoring, reply filtering, and marketing judgment as cheap measurable verdicts.
- 27
Jev for Ecommerce: Catalog, Reviews, and Support at Verdict Prices
The ecommerce jobs that are secretly classification: product categorization, review screening, support triage, and listing moderation, priced in cents.
- 28
The First Week of Jev: A Launch Told Through What Got Built
Jev launched in mid-September 2026 and the builds arrived faster than the takes. The first week's story, told through what shipped, category by category.
- 29
Jev Trading Bots: What People Built, and Why We Catalog It With an Eyebrow
Within 48 hours people wired Jev to real money: a $10K live experiment, a 300ms on-chain bot. What the trading builds show, and why speed is not edge.
- 30
Jev, Robotics, and the Edge: The Smallest Category With the Longest Fuse
Six builds, one big implication: a model fast enough for game loops is flirting with control loops. The honest state of Jev in robotics and edge devices.
- 31
How to Reduce LLM Costs: The Playbook, Ranked by Payback
The LLM cost-cutting playbook in payback order: cascades, right-sizing, caching, batching, and prompt diet, with receipts on what each lever saves.
- 32
RAG Evaluation: Measuring Whether Your Retrieval Actually Grounds Anything
RAG evaluation decomposed: retrieval relevance, answer faithfulness, and completeness as judge verdicts you can run on every query, not every quarter.
- 33
LLM Guardrails: The Judge Between Your Model and the Send Button
Guardrails are verdicts on your own AI's outputs before they reach users: policy, grounding, tone, and safety checks cheap enough to check everything.
- 34
Prompt Injection Detection: Judging Input Before Your AI Reads It
Prompt injection is the SQL injection of the LLM era. How a cheap judge layer screens untrusted input before your main model reads it, and its limits.
- 35
Sentiment Analysis With LLMs: From Vibes Dashboard to Verdicts
Sentiment analysis grew up: decision models judge emotion, intent, and churn signals per message for fractions of a cent. How to avoid the old traps.
- 36
Intent Classification: The NLU Job That Just Got a New Engine
Intent detection powered chatbots for a decade, badly. How decision models replace trained NLU intent classifiers: no training data, editable taxonomies.
- 37
The Decision Model Glossary: Every Term This Site Uses, Defined
The working vocabulary of the decision-model era, defined in plain language: verdicts, cascades, confidence gates, judge questions, blocking, grounding.
- 38
Entity Resolution: "Are These the Same Thing?" at a Cent a Thousand
Entity resolution is the oldest data problem wearing new prices: record matching, dedup, and identity linking as pairwise judge verdicts, with blocking.
- 39
Document Classification: Sorting the PDF Mountain for Cents
Document classification with decision models: route contracts, invoices, forms, and reports by type, urgency, and risk, chunking realities included.
- 40
Churn Prediction With AI: Reading the Leaving Before the Left
Churn prediction without the data-science project: judging cancellation language, sentiment trajectory, and risk signals in the text customers already send
- 41
AI Call QA Scoring: Grading Every Conversation, Not Two Percent
Contact-center QA reviews 1-2% of calls and calls it quality. How judge verdicts on transcripts score every call for compliance, empathy, and outcomes.
- 42
Fine-Tuning vs Prompting vs Decision Models: Picking Your Adaptation
The three ways to make a model yours: prompting, fine-tuning, and decision-model question design. When each wins, what each costs, and the sequencing.
- 43
AI Spam Detection: Filtering an Adversary, Not a Category
Spam is the one classification problem that fights back. How decision-model filters handle adversarial text, what breaks them, and the layered defense.
- 44
AI Invoice Processing: The Back Office Meets the Verdict Machine
Invoice processing as judgments: categorization, PO matching, anomaly flags, and approval routing at verdict prices, with the controls finance requires.
- 45
Jev in Production: The Ops Guide the Launch Threads Skipped
The unglamorous guide to running a decision model in production: caching, retries, versioning, monitoring, batching, and the failure modes that page you.
- 46
Jev Security and Privacy: What Leaves Your Systems, and What Shouldn't
The security questions to ask before wiring a decision model into real data: what leaves, PII minimization, local-perception pattern, and audit posture.
- 47
Jev for Founders: The Solo Operator's Unfair Advantage Stack
What one person can automate with a verdict machine: inbox, leads, support, content QA, and ops checks, assembled from real builds into a solo stack.
- 48
Why Decisions Became Free (And What Gets Built Because of It)
The essay version of what 600+ builds are saying: when structured judgment costs nothing, software grows a judging layer everywhere, and the map redraws.
- 49
AI Resume Screening: The Use Case That Demands Adult Supervision
Resume screening with judge verdicts: what it does well, where bias law applies, why NYC-style audit rules exist, and the design that keeps hiring human.
- 50
AI Grading: Feedback at the Speed of Homework
AI grading done honestly: rubric verdicts on short answers, instant formative feedback, and the line between grading support and grade automation.