Fabric vs. Perplexity

Last updated April 2026

Perplexity finds answers on the internet. Fabric finds answers in everything you've saved. Perplexity is an AI search engine that synthesises web results into cited responses. Fabric is an AI workspace where your files, documents, meeting notes, and research are stored, understood, and connected. One answers your question right now. The other builds a library that makes every future question easier to answer. Perplexity gives you search results. Fabric gives you lasting understanding.

Comparison table

What is Perplexity?

Perplexity is an AI search engine used by over 45 million people monthly. You ask a question. Perplexity searches the web, synthesises the results, and gives you a cited answer. Pro unlocks advanced models (GPT-5.2, Claude, Gemini), Deep Research for multi-step reports, and Model Council for comparing outputs from three models simultaneously. Max at $200/month adds Perplexity Computer, an agentic tool that handles complex workflows autonomously. The free tier handles basic queries. Pro at $20/month is the popular tier. Enterprise starts at $40/user/month. Perplexity is fast, useful, and ephemeral. The answers are good. They also disappear into a growing list of threads you'll rarely revisit.

What is Fabric?

Fabric is an AI workspace that combines file storage, note-taking, search, tasks, collaboration, and publishing. The Fabric Memory Engine automatically extracts, enriches, and maps relationships between everything you save. Fabric also has AI web search when you need it. But the core difference is that Fabric's AI understands your content, not just the internet's. Where Perplexity answers your current question, Fabric builds a library that answers your future ones.

Key differences

The web vs your knowledge

Perplexity searches the internet. It's good at this. Ask a question, get a synthesised answer with citations, follow up with more questions. The knowledge source is the open web. Perplexity doesn't know what's in your files, your notes, your meeting recordings, or your research library. It knows what's publicly available.

Fabric's AI searches your content. Every file you've saved is extracted, enriched, and indexed. You can ask questions that span your personal library: documents, saved articles, meeting notes, PDFs, videos, images. Fabric also has web search when you need external information. But the primary knowledge source is yours. Perplexity knows the internet. Fabric knows you.

What stays

This is the core difference. Perplexity answers live in threads. You can scroll back through them. You can organise threads into Collections. But threads aren't a knowledge base. They aren't indexed, connected, or searchable by meaning. You can't ask Perplexity "what did I research about pricing strategy last month?" and get an answer that draws from ten previous conversations. Each thread is its own session.

Fabric keeps everything. Every file, note, and piece of content you save becomes part of a growing, connected library. The AI understands all of it together. You can ask a question that spans everything you've ever saved. The hundredth thing you save is more useful than the first because the Memory Engine has mapped relationships across all of it. Perplexity gives you answers. Fabric builds understanding.

Search scope

Perplexity searches the open web in real time. Useful for current events, factual queries, and synthesising information from multiple sources quickly.

Fabric searches your personal library by meaning. Semantic search, visual search, colour search, in-document search, cross-platform search across Google Drive, Notion, and Dropbox. Fabric also has web search for external queries. Perplexity searches one direction (outward). Fabric searches both directions (inward and outward).

Content types and storage

Perplexity doesn't store your content. You can upload files into a chat thread, and the AI will analyse them within that conversation. But there's no persistent file storage, no indexing, no library that grows over time. When the thread ends, the file's context ends with it.

Fabric stores everything permanently. PDFs, images, video, audio, documents, slides, spreadsheets, ePubs, links, emails. All extracted, enriched, searchable, and AI-queryable. Your library compounds. Perplexity is stateless. Fabric has memory.

Notes and writing

Perplexity doesn't have a notes editor. Answers appear in threads. If you want to write alongside your research, you copy the output into another tool.

Fabric has a full markdown editor with version history, real-time collaborative editing, and embedded file references. You can research and write in the same workspace. Your notes reference your saved content. The AI understands both.

Collaboration

Perplexity has Shared Spaces on Enterprise plans. No real-time co-editing, no annotations, no shared drives, no threaded comments on content.

Fabric supports real-time co-editing on documents and canvases, pinned annotations on any content type, threaded comments, in-context chat, and shared drives.

Beyond search

Perplexity is a search tool. A sophisticated one. But it doesn't store files, edit documents, manage tasks, host spatial canvases, transcribe meetings, or publish content with analytics.

Fabric does all of that. Search is one capability. The workspace surrounding it is the difference.

When to use each

Use Fabric if you want to build a personal knowledge base that gets smarter over time. You save research, documents, meeting recordings, and reference material and want the AI to understand all of it. You need notes, collaboration, publishing, tasks, and semantic search alongside your AI. You want answers that draw from your own content, not just the open web. Knowledge that lasts, not threads that scroll away.

Use Perplexity if you need fast, cited answers from the open web right now. You're fact-checking, researching current events, comparing products, or synthesising information from public sources. You don't need to store the answers or build a connected library from them. Perplexity is the best AI search engine available. It just doesn't remember.

Use both. Research external information with Perplexity. Save what matters into Fabric, where it becomes part of your permanent, AI-aware library. Perplexity finds answers. Fabric keeps them.

Why people move from Perplexity to Fabric

Answers disappeared. Weeks of research scattered across hundreds of threads with no way to connect them. Fabric stores everything in a searchable, connected library that compounds.

They wanted the AI to know their content. Perplexity knows the internet. It doesn't know the contract you're reviewing, the meeting recording from last week, or the research you saved three months ago. Fabric knows all of it.

They needed more than search. Notes, file storage, collaboration, tasks, publishing, spatial canvases, meeting transcription. Perplexity does search. Fabric does the rest.

They wanted to write alongside their research. Copying Perplexity outputs into a separate writing tool added friction. Fabric's editor sits next to your saved content and the AI understands both.

FAQs

Does Fabric have web search like Perplexity?

Yes. Fabric's AI can search the web when you need external information. The difference is that Fabric also searches your personal library. Perplexity only searches the web.

Does Perplexity store my files?

Not persistently. You can upload files into a chat thread, and the AI analyses them within that conversation. There's no permanent storage, no indexing, and no growing library. When the thread is done, the file's context is gone.

Is Fabric free?

Fabric has a free tier with limited storage and AI. Perplexity's free tier handles basic web queries with limited Pro searches.

Which is better for research?

Perplexity is better for finding information on the open web quickly. Fabric is better for building on research over time. Perplexity answers the question in front of you. Fabric makes sure you can find and connect that answer six months from now.

Can I use both?

Yes. Many people use Perplexity for external research and Fabric as the workspace where findings are saved, connected, and built upon. They complement each other well.

Does Perplexity have collaboration features?

Shared Spaces on Enterprise plans allow teams to share threads and collections. No real-time co-editing, no annotations on content, no shared document workspaces. Fabric has full collaboration tools.