Breaking: Browser Use + Jev = Ultrafast ⚡ Findings flights took 7s and cost only $0.0039 🤯 > new action space every step > DOM state space > small LLM fallback to type (this video is at 1x speed btw) Built a tiny open source browser agent. try it below ↓
Updated
What people are building with Jev
Projects, posts and guides about Jev, the System One model from TypeSafe AI. Each entry links to its source and shows the cost and speed its author reported.
- 607builds
- 3guides
- 8use cases
After co-inventing ChatGPT, I kept asking myself: why have superhuman chat models not led to AGI? I’ve spent the last 2 years in stealth building a new way to train models (RLCD), and a new type of frontier AI model that we are releasing today: Jev • 20-200x faster • 40-400x cheaper (w/ output tokens free) • Frontier composable intelligence optimized for decisions AFAICT the shortest path to AI-based economic revolution
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An agent reports onboarding done; the judge verifies access and equipment claims.
ResourceResearch & data
Verify: new-hire onboarding completion
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Triage: vague meeting request gets a disposition
A note-taking app silently drops edits on flaky networks; the judge grades severity.
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Triage: data-loss bug gets a severity
A crash report with steps and logs; the judge routes it and checks reproducibility.
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Triage: crash report routing + reproducibility
A ticket reports checkout failing for all EU customers; the judge assigns a priority level.
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Triage: checkout outage ticket gets a priority
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Screen: product review authenticity + helpfulness
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Score: inbound lead quality tier
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Score: account churn-risk tier
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Route: support request goes to the right queue
An agent redlines a SaaS renewal; the judge checks the liability cap and grades the redline.
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Review: vendor contract redline safety
A PR adds auth caching but skips token expiry; the judge issues the review verdict.
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Review: pull request gets a merge verdict
A draft newsletter announces a launch; the judge grades it and checks the call to action.
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Review: newsletter draft quality + CTA
A panel writes feedback on a backend candidate; the judge reads the signal and checks evidence.
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Review: interview feedback hire signal + evidence
A discovery call ends with vague promises; the judge classifies the close and grades technique.
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Review: discovery call next step + technique
A payment support transcript should only ever show the last four digits; the judge checks for leaks.
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Payment transcript: full card number never appears
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Moderate: user post safety verdict
A supplement listing makes disease claims; the judge rules and checks recall of the exact claim.
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Moderate: marketplace listing verdict + recall
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Grade: outage apology email
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Grade: onboarding email quality
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Grade: meeting notes usefulness
Checkout errors spike at 2am; the judge decides the response and grades the reasoning.
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Decide: page the on-call or queue it
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Classify: customer message sentiment
A third overdue notice goes out; the judge checks the tone stays professional.
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Classify: collections email tone
An agent adapts a paella recipe for a shellfish allergy; the judge checks safety and classifies the swap.
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Check: recipe adaptation for allergies
An agent answers from the docs about SSO; the judge scores grounding and checks the plan gate.
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Check: docs-grounded answer accuracy
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Check: beginner fitness plan safety + progression
An agent plans 48 hours in Lisbon; the judge checks timing and grades the plan.
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Audit: weekend itinerary feasibility + quality
A full refund transcript; the judge checks policy compliance and grades empathy.
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Audit: support transcript refund policy + tone
An agent compresses standup chatter; the judge checks blockers survived and grades brevity.
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Audit: standup summary blockers + brevity
An agent hands a case to the next shift; the judge checks facts and grades clarity.
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Audit: shift handoff note completeness
Draft release notes for a mobile update; the judge classifies and grades them.
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Audit: release notes audience + quality
A user asks for a password reset over chat; the judge checks the agent did not leak or over-share.
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Audit: password-reset reply safety
A customer disputes a double charge; the judge checks acknowledgment and routes it.
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Audit: invoice dispute handling
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Audit: damaged-item chat resolution + queue
A frustrated customer hits a bot loop twice; the judge checks whether a human handoff was offered.
ResourceTools & apps
Support chat: agent offered a human escalation path
An agent cancels a subscription; the judge checks the exact date the cancellation takes effect.
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Subscription cancel: effective date is explicit
An agent quotes $29/seat against a price list; the judge checks the quote matches exactly.
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Sales quote: numbers match the official price list
A support agent issues a $42.50 refund; the judge checks the exact amount was stated before the refund was confirmed.
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Refund chat: agent stated the amount before issuing it
An agent books a $640 flight; the judge checks it stopped for explicit approval before paying.
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