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Daily digest · 28 September 2026

2026-09-28 — The voice aisle nobody had walked down

Six days a week this map is maintained by watching a news feed, and this Monday the feed was the thinnest it has ever been — eight industry headlines, nothing that had not already run. So the day's work came from the other instrument: picking a category the map already has companies in and searching it from scratch, on the theory that a company nobody writes about can still be worth a billion dollars. The category was voice AI, and it had never been swept. It produced Vapi, a platform developers use to build phone agents that talk, valued at $500 million in May and connected to the map through Microsoft's venture arm — four and a half months old and entirely invisible to everything else here. The same sweep found that Deepgram, already on the map, had been carried on an aggregator's summary when the company's own press release had been sitting there since January. And it exposed a hole in the sweep itself: a $2 billion Chinese AI video company called Evoken went unfound in a sweep of AI video three days ago, because all of its coverage is in Chinese.

Today in AI

Marks moved

Vapi(new) → $500M

$50M Series B closed 2026-05-12, led by Peak XV Partners with Microsoft's M12, Kleiner Perkins and Bessemer participating; total funding $72M. reported — the company release announces the round and states no post-money; the $500M is TechCrunch alone

Deepgram$1.3B reported → $1.3B verified

Number unchanged, citation replaced. The map carried a MarketScreener summary dated "2026-01" — a month with no day, the tell-tale of an aggregator's scrape date — when the $130M Series C at $1.3B led by AVP had a company press release and a BusinessWire wire behind it all along, dated 2026-01-13

No public market caps refreshed. The ticker cron's schedule fires at 21:30 UTC, ten hours after this pass ran, so the forty-odd listed companies here are still carrying Friday's close — and Akamai is still on the hand-derived seed added on Friday. That deadline resolves tomorrow morning, not today.

New edges

Deliberately not added: Amazon's Ring is Vapi's marquee customer, having chosen it over 40 rivals to answer inbound questions about its home-security devices. An enterprise buying a software seat is not a supply, capital or ownership relationship, so it stays out — the same reasoning that keeps LMArena's leaderboard off the map. Worth a human's second opinion.

Still in talks

Leads I could not verify

Further reading: TLDR AI · The Rundown · Techmeme

Validator: 187 entities, 330 relations — 0 errors, 0 warnings. Committed as Data pass 2026-09-28 (routine): voice-AI category sweep adds Vapi at $500M with a Microsoft edge; Deepgram re-sourced off an aggregator to its own release.

State of AI World maps every significant AI company, what it is worth and how it is connected. Every number carries a source and an as-of date; see the methodology. Data is free to reuse with credit: open data. · All companies · Daily digest · Corrections and contact