Locus AI: Smart Natural Language Search for PDFs & Web
Locus AI reinvents CTRL+F with natural language search, instantly surfacing relevant information across webpages and PDFs for faster research and studying.
Overview
Locus AI is a browser-based AI Co-Pilot built for students, analysts, and researchers who need to sift through dense documents quickly. Rather than relying on exact keyword matches like traditional CTRL+F, Locus interprets the meaning behind your query and jumps straight to the most relevant sections of any webpage or PDF, saving valuable time when working with lengthy papers, reports, or articles.
Beyond smart search, Locus doubles as a research assistant. It can summarize entire pages, help brainstorm research directions, and even generate study note cards, making it a versatile companion for anyone who needs to synthesize large volumes of information efficiently. A favorites feature lets users bookmark key findings for later reference, streamlining the entire research-to-comprehension workflow.
Capabilities & Features
- AI search
- Natural language processing
- PDF search
- Information synthesis
- Research tool
- Browser extension
Core Features
- Natural language search that understands intent, not just keywords
- AI-powered search within PDFs
- AI-driven summarization and brainstorming assistance
- Automatic study note card generation
- Favorites feature to save and revisit important information
Use Cases
- Locating specific data points in lengthy academic papers
- Speeding up comprehension of dense PDF reports
- Consolidating research findings across multiple sources
- Generating study note cards for exam preparation
- Brainstorming new research angles with AI support
Best For
- Students
- Analysts
- Researchers
- Academics
- Knowledge workers handling large documents
Pros
- •Finds contextually relevant content that traditional keyword search would miss
- •Works seamlessly across both webpages and PDFs
- •Combines search with summarization and study tools in one extension
- •Free tier available for casual or light users
- •Access to multiple advanced AI models including GPT-4o and Claude 3
Cons
- •Free plan limited to only 3 documents per day
- •Requires a browser extension, so it isn't usable outside supported browsers
- •Full functionality, including unlimited searches, requires a paid subscription
- •Advanced AI model access may depend on continued OpenAI/Anthropic integration availability
How to Use
1. Install the Locus AI browser extension. 2. Open any webpage or PDF you want to search. 3. Type a natural language query describing what you're looking for instead of exact keywords. 4. Locus AI will locate and highlight the relevant sections instantly. 5. Use built-in AI tools to summarize content, brainstorm research ideas, or generate study note cards as needed.
Frequently Asked Questions
Pricing
Locus AI offers a free plan limited to 3 documents daily, with unlimited access and advanced AI models available via Professional plans starting at $7.5/month billed annually or $9/month billed monthly, both including free trial periods.
Pricing data is provided as a summary. Visit the vendor website for full tier details.