Character AI category #
The broader product category of conversational AI built around distinct personalities — real, fictional, or user-created. Includes apps like Soriz, Character.AI, Replika, Talkie AI, and Janitor.
Heads-up: "Character AI" (the category) is different from Character.AI (a specific product by the same name). When people say "character AI app," they usually mean this category.
See also AI companion Soriz vs Character.AI Soriz vs Replika
Context window noun #
The amount of text an AI can consider at one time within a single conversation. Think of it as the AI's short-term working memory — everything inside the window shapes the next response.
Context windows have gotten huge (100k+ tokens) but they're still finite. Soriz pairs context windows with per-companion long-term memory so important details survive across sessions, not just within one chat.
See also LLM memory RAG
Custom companion noun #
An AI companion you create yourself, tuned to a personality, voice, or set of expertise. On SorizPro, you can build one in three ways: from scratch, from a real person (with their consent), or by importing your old chat history so the AI learns the conversational style.
Try it free for 7 days
See also persona AI companion roleplay AI