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AI News: OpenAI Just Put the Brakes on AIMatt Wolfe21 Aug 2026
Second-brain/knowledge-wiki feature inside Perplexity Computer with an Obsidian-like knowledge graph. The creator thinks it builds on Karpathy's wiki concept.
PB
Perplexity Brain
by Perplexity
Knowledge-wiki "second brain" feature in Perplexity Computer with an Obsidian-style knowledge graph.
Updated EU status checked Last shown
Perplexity Brain at a glance
- What is Perplexity Brain?
- Perplexity Brain is an app from Perplexity. Knowledge-wiki "second brain" feature in Perplexity Computer with an Obsidian-style knowledge graph.
- Who makes Perplexity Brain?
- Perplexity Brain is made by Perplexity.
- Does Perplexity Brain work in the EU?
- Unverified. No explicit evidence found. Last verified 14 Nov 2026.
- How much does Perplexity Brain cost?
- Pricing unknown. Pricing for Brain not confirmed; Perplexity itself offers a free tier and paid plans. Licence: Proprietary.
- Where was Perplexity Brain shown?
- In 2 creator videos by Matt Wolfe. Most recently by Matt Wolfe on 21 Aug 2026, at 23:06 in “AI News: OpenAI Just Put the Brakes on AI”.
Sources: the vendor's own pages (linked above) and creator videos at the linked timestamps. EU status is information, not legal advice; see how we check.
About
Perplexity Brain is a second-brain / knowledge-wiki feature reported inside Perplexity Computer, Perplexity's agent product. According to a YouTube creator (Matt Wolfe), it presents saved knowledge as an Obsidian-like knowledge graph, and he considers it to build on Andrej Karpathy's wiki concept.
The provided official page text covers only the general Perplexity answer engine and does not describe Brain. Details such as exact functionality, data sources, plan requirements, launch date and regional availability could not be confirmed from the material provided.
It is accessed through Perplexity's web and app products. Treat the feature description as based on secondhand creator commentary until Perplexity documentation is available.
Key features
- Second-brain / knowledge-wiki feature within Perplexity Computer
- Obsidian-style knowledge graph view
- Reportedly inspired by Karpathy's LLM wiki concept
2 moments
As seen on YouTube
Watch the moment: the exact second top creators show it. Videos load only when you press play, via youtube-nocookie.com.
MA
AI News: No One Saw This Coming!Matt Wolfe19 Jun 2026
A self-improving memory system for Perplexity Computer that builds a context graph and reviews it at intervals to improve future work and learn from mistakes. Requires a Max or Enterprise plan.
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