Perplexity rolls out a clear, practical update: its AI assistants, like Comet Assistant, now remember preferences and conversations to deliver faster, more personalized answers. Published on November 26, 2025, the change aims to solve the everyday problem of losing the thread when you work with models that forget what you already said.
What it means for an assistant to have memory
Have you ever felt like every chat with an AI is starting from scratch? Memory exists to avoid exactly that. Instead of relying only on what you type each session, the assistant stores useful details—like your favorite brands, dietary restrictions, or ongoing projects—and uses them to give more relevant answers without making you repeat everything.
It’s not magic: it’s continuity. Memory acts like pre-loaded context that keeps your workflow moving so you don’t have to write manual summaries or repeat instructions.
How Perplexity implements memory
Perplexity says it doesn’t treat your history as if it were massive training data. Rather than folding everything into a dataset to recompute probabilities, the system retrieves relevant information from a memory store and uses it directly to build the response.
