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Discontinued AI tools

1 tool in the catalog shut down or changed hands after we listed it. We re-check every listing on a schedule, and a tool is marked discontinued only after failures repeat across separate checks — a bot wall or one bad afternoon never counts. Its page stays up with what the checks found, so a search for a tool that vanished ends in an answer rather than nothing.

Data as of How we countCSV (CC BY 4.0)New tools

AI tools tracked
3,264
shut down or acquired
1
of the tracked catalog
<0.1%

What the checks found

The latest finding on each discontinued tool, grouped. Acquisitions are an editor’s call, not the checker’s.

  • Site says the page is gone (404/410)1

By category

Categories with at least one shutdown, counted by each tool’s main category. Small categories are left out: a rate over a handful of tools says nothing.

CategoryClosedTrackedRate
Chatbots, Assistants & Agents12620.4%

Shut down1

The site stopped answering, its domain lapsed, or it now says the product is gone.

The data

Every row behind this page as a CSV — name, website, category, status, the day it was listed, the day it was marked discontinued, the day of the last check, and what that check found. It is published under CC BY 4.0: use it, chart it, republish it, with a credit to EffectHub and a link to this page. The Excel link is the same file, marked as UTF-8 so Excel keeps names outside English intact.

Download the CSV · Open in Excel · 1 row

How we count

Every published listing is re-checked on a rolling schedule: every few days for the tools people open most, weekly for the rest of the active catalog, monthly for the long tail. Tracked is the published catalog that has been checked at least once.

A check requests the tool’s own website — a light HEAD request, then a GET when the server will not answer HEAD properly — with a ten-second limit and at most five redirects. It counts as a failure when the domain no longer resolves, the connection is refused, reset or times out, the certificate is invalid or the secure handshake fails, the address redirects in a loop, the server answers with a 5xx error, or it answers 404 or 410 — “nothing here”.

Being kept out is not evidence of death. A 401, 403, 429 or other 4xx answer, a bot-protection page, or a refused HTTP/2 stream leaves the status alone. A site that now redirects to a different company’s domain stays active: the move is recorded, not counted as a shutdown.

One failed check marks a tool possibly discontinued. It is marked shut down only when the next scheduled check, on a separate run, fails too; any successful check returns it to active and takes it off this page. Before every run the checker tries a set of sites known to be up, and if too many of those fail the fault is our network, so the run stops without writing anything.

Acquired is an editor’s verdict. An acquired product usually redirects to its new owner, which a check would read as a live site, so checks never overwrite it.

The listed date is the day a tool went public in our catalog; the discontinued date is the day a check or an editor first moved it to shut down or acquired. That second date has been recorded since October 11, 2026 — tools marked earlier carry only the date of their last check. The median time listed before shutdown is measured between the two over the tools that have both, and appears once 10 do. Our catalog opened in 2026, so it is time in our catalog — a floor, not a tool’s age.

A tool we found dead while researching it is never published, so it is in neither number: this page counts tools that stopped after we listed them. More on how we verify listings.

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