Reference pages for the questions that keep changing under engineers who build on AI: what a model costs, which open weights you can actually run, what is being switched off and when, and who is paying whom for compute. Every row carries a status and a source, and every page shows the date it was last checked.
How the trackers are kept
Each row comes from a primary source that was opened and read: a vendor's pricing page, a model card, a deprecation notice, a filing. When no such source exists, the row cites named press coverage and is labelled as reported rather than confirmed. Where two sources disagree, the vendor's own page wins and the difference goes into the page's change log. A value that can't be confirmed is marked as unconfirmed or left out. Gaps aren't filled with estimates.
The pages are re-checked on a rolling schedule and whenever a vendor changes something. The "What changed since" section on each page is the dated record of those changes, newest first, so you can see what moved without comparing two copies. If a value looks wrong, send the source and the correction will be logged in that same section. The editorial policy explains how errors are handled and how AI tools are used in drafting.
For the commands and procedures behind day-to-day sysadmin work, the guides and the free tools are the other half of the site.