Shameless plug but made a similar tree here: https://sajarin.com/blog/modeltree/
Opus 3.5 was scrapped even though Sonnet 3.5 and Haiku 3.5 were released.
Not to mention Sonnet 3.7 (while Opus was still on version 3)
Shameless source: https://sajarin.com/blog/modeltree/
Bit of a shameless plug but I wrote a HN AI comment detector game[0] with AI and most of my friends and fellow HN users who tried it out couldn't detect them.
[0]: https://psychosis.hn/
[1]: https://sajarin.com/blog/psychosis/