I forked the ai repo so I could change created_at to updated_at and move ahead. I’m pleased to report that it successfully summarized all of the 400+ topics I expected it to summarize. Some failed on the first backfill pass, possibly because we were over quota for that minute, but it successfully summarized those on the second pass.
In particular, the Franklin Lexington topic now has a summary.
Again, backfilling is not going to work well yet for others, because of the created_at issue.