What moved, before it's news — composed from dated public evidence, never from chatter. Every claim links to its receipts.
36 new TLS endpoints appeared in certificate-transparency logs over the last 90 days (0 in the 90 before) — including staging.sandbox.langchain.com and staging.opencanvas.langchain.com. The names say what it's for: 15 product/API surface, 14 launch-staging surface. No announcement anywhere yet; infrastructure precedes launches. At the same time its engineering openings grew 52 → 60 in 85 days.
1534 new TLS endpoints appeared in certificate-transparency logs over the last 90 days (0 in the 90 before) — including staging.together.ai and dashboard.yaroslav-xgt8w.s1.us-central-8a.cloud.together.ai. The names say what it's for: 1533 product/API surface, 58 operational tooling. No announcement anywhere yet; infrastructure precedes launches. At the same time its engineering openings grew 47 → 56 in 90 days.
Engineering openings grew 1236 → 1463 in 47 days on the company's own job board — hiring velocity of this shape historically precedes announcements and rounds.
Indexed 2026-09-20 on the strength of a $3000M round; first VentureSignal read: 79. Every number traces to the announcement record.
Engineering openings grew 168 → 212 in 47 days on the company's own job board — hiring velocity of this shape historically precedes announcements and rounds.
How this is made: no editorializing, no model improv — each story is composed from the index's own dated observations (certificate-transparency detections, job-board series, round records, the claims ledger). If a sentence can't cite a receipt, it doesn't run.