Nextpart.ai review
Nextpart.ai publishes a plan table for fictional character chat. Its higher paid tiers both list unlimited text, with separate entries for voice, memory and tools such as reply assistance.
Picking a plan for a long story
The public table advertises 16K and 32K conversation memory on different tiers. It also distinguishes standard voice responses from premium voices and lists AI Reply Assistance as a credit charge on one tier and unlimited on a higher tier. Those differences matter more than the text allowance if you rely on one of those extras.
Comparing what memory labels tell you
AI Girl distinguishes short, deep and maximum memory in its public upgrade table and also lists separate image and game allowances. Nextpart puts numbers next to memory on its higher tiers. That makes the advertised difference easier to read, though the figures alone leave open which story details will survive a long chat.
Anabel’s take
I'd pick a Nextpart tier around the kind of story I want to write. For short, self-contained scenes I'd care less about the bigger memory figure and more about whether I want premium voice or help writing my replies.