Glasp vs Perplexity

Glasp is a social web highlighter. With its browser extension you can highlight and annotate text on any web page or PDF, collect everything in one place and, if you like, share your highlights publicly to learn alongside others with similar interests.

Glasp is also well known for its YouTube summaries: it shows a video's transcript and can create an AI summary of it, so you can skim long videos quickly. You can import Kindle highlights, export notes to tools such as Notion and Obsidian, and use AI to summarise and connect your saved ideas. Over time your highlights become a personal, searchable knowledge library.

Good fit if you: read a lot online and want to save, organise and revisit th…

Perplexity is an AI answer engine: ask a question in natural language and get a direct, synthesized answer with numbered citations to the sources it used — combining a chatbot's fluency with a search engine's accountability.

Every answer links to real pages you can verify, which addresses the core trust problem with AI assistants. Focus modes let you restrict searches to academic papers, YouTube, Reddit or the whole web; follow-up questions maintain context; and Pro Search performs deeper multi-step research. Pro subscribers access frontier models (GPT, Claude and others), file analysis, and Spaces for organized research projects. Comet, its browser, and shopping features extend the ecosy…