All decision model projects

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.

Post evaluating Jev for mapping free-text player intent into typed server actions in a tabletop MMORPG.

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.

Vals AI's independent benchmark of Jev: matched a frontier model on claim verification at a fraction of cost, but ranked last on LegalBench.

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.

X thread on a ViZDoom agent using two Jev decision channels: navigation at 5 Hz and combat at 12 Hz.

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.

Designer's X demo where a natural-language phrase narrows a large icon set to matching icons, with Jev deciding.

X demo where Jev picks which candidate link to click on a page to move toward a goal.

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'.

X post by Elvis Saravia (DAIR.AI) that, per a Chinese Jev list, independently stated the list's first core rule.

X post summarizing Jev's pitch: why make software wait for an LLM to write paragraphs when it only needs decisions?

X account of @moritzkremb, cited in a Chinese Jev list as the source of its most specific per-call cost figure.

X demo of zsh completion where Jev picks the most likely next command from the last 100 deduplicated history entries.

Reddit r/LocalLLaMA post, also on Hacker News, claiming the author built the Jev architecture a year earlier and open-sourced it.