This model was retired by its vendor, and the catalogue no longer lists it either.
retired 2024-11-06 · the vendor writes it claude-1.3
The vendor names a replacement for it:
claude-haiku-4-5-20251001
That replacement is still in the catalogue, with no retirement date.
It left the catalogue before this site started watching, so there is no removal date here - only the vendor's own.
Read the vendor page this date came from
Everything else that is going away
Other Anthropic models that are still listed.
Old code is where retired models hide. The same check runs over a whole repository:
curl -sO https://neosignal-ai.vercel.app/check.py
python check.py .
Check this model and the rest of your stack It opens with this id already filled in. Nothing is stored - the list lives in the link.