Perplexity Unveils 'Brain': Self-Improving Memory Boosts Accuracy
inductionheads · x · 2026-08-26
Perplexity launched 'Brain', a self-improving memory system for its Computer product. It compiles sessions, files, and sources into a structured knowledge wiki. Official evaluations show that Brain improves correctness by 9.3 points, currentness by 8.0, and recall by 8.9, while using 15% fewer tokens.
CEO Arav Srinivas added that Perplexity Computer now features a background Dream Agent that continuously ingests context from files and connected apps to build multi-hop context graphs in a perpetual compounding loop.
Related event: Perplexity Unveils Brain, a Self-Improving Agent Memory System(6 posts)→
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