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AI Change Watch
Every AI API change, recorded the day it happens
Vendor changelogs are prose, and never record what a number used to be. AI Change Watch re-reads the pricing, model, API and security pages of 15 AI providers on a schedule and records each change as an exact before → after diff, with its source. It also publishes what that record makes possible: price history and a market price index, model-vs-model comparisons, a calendar of shutdown dates with successors and migration cost, and findings like "only 66% of retirements name a replacement".
Hi Product Hunt 👋
I kept getting surprised by the AI APIs I build on. A price halves and I find out from
the invoice. A model I call in production picks up a retirement date buried in a docs
table. Vendor changelogs, where they exist at all, are prose — not something you can diff.
So I started recording it instead. AI Change Watch re-reads the pricing, model, API, SDK
and security pages of 15 providers every hour, diffs each against the stored snapshot,
and keeps what actually changed:
— The exact before → after. "Mistral Moderation input: $0.1 → $0 (−100%)", with the
source link and that model's full price timeline. Numbers are lifted from the stored
snapshot; an LLM only ever polishes wording, it never supplies a figure.
— Shutdown dates, ahead of time. 270 recorded deprecations, 208 with a vendor-published
end date, 58 still ahead. Subscribe to the .ics and each one lands in your calendar
with 30- and 7-day reminders — including when a vendor moves a date.
— Questions only an archive can answer. Only 66% of recorded retirements name a
replacement — Anthropic 100%, Microsoft Azure 0%. And of the 24 migrations we can
price today, 17 cost *more* per token, not less.
The archive is also what the rest of the site is built out of: price history for 367 models
and an index of the market's mean input price, model-vs-model and provider-vs-provider
comparisons, and a shutdown calendar that carries each model's named successor.
Free to read, no account, RSS and .ics. Nothing publishes until a person has checked it
against the source — slower, but I'd rather be right than first.
I'd really like to know which providers you'd want added, and whether the deprecation
calendar matches how you actually plan migrations. If a number looks wrong, please say so
— every page links its source, so it's checkable in one click.
— Jun
About AI Change Watch on Product Hunt
“Every AI API change, recorded the day it happens”
AI Change Watch was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #74 on the daily leaderboard. Vendor changelogs are prose, and never record what a number used to be. AI Change Watch re-reads the pricing, model, API and security pages of 15 AI providers on a schedule and records each change as an exact before → after diff, with its source. It also publishes what that record makes possible: price history and a market price index, model-vs-model comparisons, a calendar of shutdown dates with successors and migration cost, and findings like "only 66% of retirements name a replacement".
On the analytics side, AI Change Watch competes within API, Developer Tools and Artificial Intelligence — topics that collectively have 1.1M followers on Product Hunt. The dashboard above tracks how AI Change Watch performed against the three products that launched closest to it on the same day.
Who hunted AI Change Watch?
AI Change Watch was hunted by ushiro. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of AI Change Watch including community comment highlights and product details, visit the product overview.
ushiro