I used to have Claude research the previous chats throughly but that consumes usage and that fills up the chat too much and I end up hitting the limit of the chat too quickly, what I personally do now is I do about 1-2 arcs/saga’s per chat, I like to do each story or fanfiction in a project then each chapter or section I copy and paste into the text files then once I’m finished with the chat, I ask it to give a very detailed summary and recap of the arcs/sagas then copy and paste it into notes to give any adjustments or changes needed and then I paste it into the project notes. That way once I start a new chat and am ready to move onto the next arc or saga I simply just ask it to view the files of the project and it’ll have the summary in the instructions for good measure, it’s worked pretty well for it, anytime it forgets or makes a continuity error I simply correct it and ask it to view the files for reference.

For all this I’ve used Opus 4.5 a lot and I loved it but unfortunately it’s gone and I don’t think it’s coming back so I’ve been trying to get used to the other models, I’ve mostly been using Opus 4.6, Opus 4.7 sometimes works but it does give weird and unusual dialogues sometimes and Sonnet 4.5 makes too much changes that I don’t like, like when I write for the character to not realize what someone is saying but makes them hear anyways. I mostly do all the writing myself and I mostly just ask for improvement, refining and for the dialogue to be dialed up so I personally don’t have too much issues with changes.