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OpenRouter model reference Facts from the public catalogue, dated and labelled
Jev Laya Verified
2026-09-22

A third party's own System One family (not Jev)

1/ Introducing CUA-S1: a family of System One Models, small, specialized, and built for computer use. Today we're open-sourcing CUA-S1-FORMS, the first in the family: https://t.co/J1frbEbZTQ https://t.co/8wMJBLndG8

Why it is here

Not built with Jev: this is a third party announcing its own family of System One models, which is the clearest sign that the category now exists outside the company that named it. Kept in the column because the comparison is the news.

What we checked

  • post resolved through the public syndication endpoint on 2026-09-24
  • text, author, date and like count read from that response on 2026-09-24
  • poster image stays on X's CDN; nothing downloaded or rehosted

What we did not check. We did not re-run the thing the post describes, so every figure on this page is the author's own and every claim is theirs — the note above is what we make of it after reading, not a measurement. The like count is a snapshot read on 2026-09-23 and it has moved since; 5,500 is what it said when we looked.

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