Is ChatGPT Pro Quality Declining?

I’m an attorney and have been using ChatGPT Pro and Claude paid accounts for a while. (The $200 / month option for each, not sure if I really even need all that.) My best use for these devices is for drafting documents or deep research projects. If I can type in the facts and get a complaint that just needs to be edited or if I can type in a question and get back a research paper, that can be quite useful for my work.