Community discussion and field reports with decision models

X post showing a Claude plugin that asks Jev to review redundant tool calls in about a second.

Japanese X post about running a Jev-style decision model locally, noting speed is still improvable.

Show HN thread for AT0M, a Jev-like System One decision model packaged as a single Rust binary.

Show HN thread for Decide, a tool for making Jev decisions from the shell, scripts and agent skills.

Show HN thread where Jev plays the Bletchley Park analyst for a software Bombe attacking Enigma ciphertext.

Show HN thread for jev-bisect, a pip package that finds answers with Jev by bisection search over options or ranges.

Show HN thread for onesie, a Unix-style pipeable CLI for using System One models like Jev in shell pipelines.

Show HN thread announcing an open-source decision model that its authors claim beats TypeSafe Jev.

X post in which a practitioner lists the six Jev uses he still expects to rely on after 60 days.

X post comparing Jev with a hand-built regex on 544 Spanish data-protection resolutions: 98.2% agreement for about five cents.

X post where the accessibility tree is the state, candidate actions are the options, Jev picks each step and Stagehand executes.

X post showing StarCraft: Brood War in WASM exposed as an MCP server, with Jev playing and still losing to a Zerg rush.

Hacker News thread on a news story about TypeSafe's Jev sparking copycat models and talk of LLM alternatives.

X post showing Jev labelling support tickets for category, urgency and whether a human or automation should handle them.

Hacker News discussion on whether System One models like Jev can generate training data for cheaper replacements.

Reddit thread in r/PiCodingAgent on using Jev as a tool-use safety layer and a prompt-complexity model router for Pi.

X post by Theo arguing that decision-model context compaction is reconstruction, not filtering, and is a poor strategy.

Hacker News thread on a reported TypeSafe AI funding round of $870M at a $7.5B valuation.

Reddit r/singularity launch thread framing Jev as a low-hallucination, low-cost decision model for software rather than chat.

Reddit r/homeassistant post presenting TypeSafe Conversation, a Home Assistant voice agent built on Jev.

TypeSafe post on X pausing Jev signups days after removing the waitlist, citing quality of service.

Hacker News thread arguing TypeSafe created the decision-model category and OpenAI and AWS followed within three weeks.

Hacker News thread about an open-source Jev alternative built on Qwen-2.5-1B with RLCD training.

Guillermo Rauch's X post: Jev reviews every command in Vercel's fx tool as a safety reviewer, faster and more accurate than a chat model.

Hacker News thread on RLCD, the training approach described as behind Jev's calibrated decisions.

Hacker News thread discussing what TypeSafe did well in launching Jev.

Widely shared X explainer framing Jev as 'AI multiple choice, not AI essay writing' and cataloguing nine use patterns.

Plain-language X post explaining Jev as 'AI multiple choice, not AI essay writing'.

X post noting a platform divide: X filled with Jev prototypes while Reddit had only three Jev posts.

TestingCatalog X post describing Jev as 'a small and customizable System One decision model'.