Consider Z.ai if you need "bulk" usage, GLM is now very good. They still have the occasional API brown out however.
I used to use GLM mostly and had a Claude Pro subscription for occasional review and clean up.
Now I just use GLM.
I do think Claude Max is value for money. But it's more value than I personally need and I like Anthropic less and less.
Naive question but are you not afraid z.ai will train on your personal data?