Perplexity unveils Brain, a self-improving memory system for agents

Perplexity CEO Aravind Srinivas announced Brain, a memory system that tracks the AI agent’s actions and self-updates overnight to improve future tasks.linkedin
The company says Brain boosts answer correctness by 25% and cuts task costs by 13% on work requiring historical context.x
Brain is available as a research preview for Max and Enterprise Max subscribers of Perplexity’s Computer platform, which launched in February.x

Perplexity Rolls Out Brain, a Self-Improving Memory System for Its Computer Platform

Perplexity AI has begun rolling out Brain, a continuously learning memory system designed to make its Computer agent platform more capable over time. CEO Aravind Srinivas announced the feature on LinkedIn, describing it as “a self-improving context-graph of all your sessions, connectors, and files” that “updates itself overnight with fresh context proactively.”linkedin

How Brain Works

Unlike traditional AI memory that stores user preferences and working style, Brain is designed to remember what the Computer agent actually did — including what worked, what failed, and what corrections were made. Every task performed on Computer feeds into a context graph that Brain constructs and maintains. The system reviews this graph at set intervals, such as overnight, to improve the agent’s performance on future tasks.x

According to Perplexity, Brain allows Computer to begin each new task with full context of a user’s past projects, decisions, and sources rather than starting from scratch. On tasks that require historical context, the company says Brain improves answer correctness by 25%, increases recall by 16%, and reduces cost per task by 13%.x

From Stateless to Stateful

The feature represents an evolution of Perplexity Computer, the multi-model AI agent system the company launched in February 2026. Computer orchestrates 19 AI models to autonomously handle research, coding, design, and project management workflows from a single prompt. Until now, however, Computer lacked a mechanism to learn across sessions in a structured way.perplexity

Brain is available as a research preview for Perplexity Max and Enterprise Max subscribers, accessible under “Customize” in the sidebar. The Max tier costs $200 per month.ai

A Crowded Agent Landscape

The launch comes as Perplexity continues to build out its Computer ecosystem. In early June, the company released Personal Computer for Mac, which brings the same multi-model orchestration to a user’s local machine and files. Perplexity has also integrated Computer into Slack for team-based workflows. With Brain, the company is betting that persistent, self-improving memory will differentiate its agent from competitors that reset context between sessions.perplexity