Your Personal Knowledge Base

Screenshot of a software application interface labeled 'Chunk' featuring navigation menu on the left with options like Home, Documents, Notes, History, and Settings. Central area shows a search mode option set to 'Web Search.' There are controls for font size and other settings at the bottom.

Meet Chunk—the all-in-one AI research assistant that brings together your documents, notes, and the vast knowledge of the web.

Powerful enough for serious researchers, intuitive enough for everyday curiosity.

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Access to the latest premium AI Models for one-price!

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The most capable AI Research App on all your devices

Digital devices displaying a note-taking app with documents, notes, and a pie chart showing U.S. TV viewing distribution by platform in 2023.

o3, o4-mini, GPT-4.1 & Claude 3.7 + (Thinking)

now available

Tablet screen displaying a note-taking app with a document titled "Comparative Outline: Classical Physics vs. Quantum Physics." The document lists core principles and key fields of classical physics. The interface includes navigation options for home, documents, notes, history, and settings. Suggested related documents are shown on the right in various formats and relevance percentages.

Ask Chunk about information in your stored documents.

A tablet displaying a note-taking app with a physics study guide. The interface shows a list of notes on the left and details of the 'Physics Study Guide' note on the right. The study guide covers classical physics topics like mechanics, electromagnetism, thermodynamics, wave theory, and relativity.

Take notes, write, research then add them to your stored documents.

Discover how people just like you are using Chunk to transform their work, learning, and creative processes

Your Information is Yours

We don’t share, sell, or use your data for training or ads.

Beauty & Brains

Create tables from stored data

Create tables from stored data

Support for 8 types of charts & graphs

Support for 8 types of charts & graphs

Create Notes. Upload them to Chunk or share.

Create Notes. Upload them to Chunk or share.

Chunk is great for coding

Chunk is great for coding

Organize with

Collections

Screenshot of a desktop application named 'Chunk' displaying a sidebar with navigation options like Home, Documents, Notes, History, and Settings. The main content area shows 'Collections' view with various items such as AI Agents, Ideas, Book Suggestions, and Vacation Plan. The highlighted section is 'Vacation Plan,' providing a description, collection summary about Paris attractions, and saved search queries related to vacationing in Paris.

Create Collections that streamline your workflow, giving you quick access to everything you need in one place.

Chunk automatically summarizes your Collections to help you quickly figure out what a Collection is about without having to read through each chat.

Smart Notes That Connect The Dots Between Your Documents

Screenshot of a note-taking application on a macOS interface displaying a "Physics Study Guide". The sidebar lists note titles and dates. The main section outlines topics in physics, including mechanics and electromagnetism. The right panel shows related documents with relevance scores.

Chunk AI Powered Notes

AI Writing Tools

Chunk has a robust set of AI Tools to help you be the best you. Chunk can easily assist with grammar, translation, and tone, Chunk can also help you come up with new ideas based on what you’ve written so far in your note. Chunk can even use related stored documents to get more context before responding.

Store Notes in Chunk

By default your notes are private. But if you want Chunk to able to search your note, store it in Chunk by simply pressing the ‘To Documents’ button.

Screenshot of a note-taking app displaying a list of notes on the left. A detailed note is open, discussing concepts like quantum gravity and string theory. Tools for saving, tagging, and text formatting are visible. The app includes AI writing tools for grammar, tone, summarization, and translation.
Study guide text on classical and quantum physics concepts, unification theories, particles, and key contributors like Newton and Maxwell.

Reference Documents & Notes

Press ‘Related Docs’ button and instantly see stored documents you have that may be related to your current note by searching topics and keywords. You can reference and view those documents without losing context.

Features

  • Mobile app interface displaying a search for "must visit locations when vacationing in Paris," showing top attractions including the Eiffel Tower with an image of it.

    Search Supercharged

    Chunk empowers you to find answers faster and research deeper. By combining leading AI models, intelligent web search, and custom document storage, Chunk delivers highly accurate responses with clear source links, letting you explore topics fully. All this, within an elegant, easy-to-read interface.

  • Mobile interface displaying AI model selection screen with options from OpenAI, Anthropic, and Google Gemini.

    Premium AI Models

    With Chunk, access the latest AI models from top companies like OpenAI, Anthropic, and Google—all in one place, for one price. Use the right model for any task, enhanced by real-time web search, to get the most accurate and up-to-date insights every time.

  • Mobile app interface showing search type options: All, Web Search, Documents Only, YouTube, Research, and Assistant, each with descriptions. Orange background.

    Choose Your Sources

    With Chunk, you’re in control of where your information comes from. Select your preferred search type: explore the web, search your personal documents, browse YouTube links, or dive into an academic-level Research mode that combines LLMs and scholarly sources. For an all-encompassing search, choose "All" to tap into every source available. Chunk puts the power to customize your search in your hands.

  • A smartphone screen displaying a document management app. The app interface lists various documents with file names like "FY23_Q3_Consolidated_Financial_Statements.pdf" and "A.I. (RAG) Research 2024.txt." Each entry includes file details such as type, chunk size, and a tag indicating the category like "Apple" or "Financial." The app has navigation icons at the bottom for Home, Documents, Notes, History, and Settings. The background is orange.

    Store Your Documents & Notes

    Keep all your important files in one place with Chunk. Upload and store PDFs, text files, Word docs, and more, making them instantly searchable for future queries. With seamless integration, your stored notes and documents become a valuable source of context, enhancing every search result. Organize, access, and reference your personal content effortlessly, all within Chunk.

  • Two smartphone screens displaying a notes app interface on a red background. The left screen shows a list of notes with titles and timestamps, including one titled 'Physics Study Guide.' The right screen displays the opened 'Physics Study Guide' note, containing text about key concepts in classical physics, mechanics, and Newton's laws of motion.

    Notes

    Get work done directly in Chunk using Notes. Notes are automatically stored securely and privately using iCloud on all of your Apple devices. With a click of a button, store your notes to Chunk to search for context later. Or save Chats as notes to edit or use later. Notes also comes with some amazing AI tools built in for things like grammar, tone, or even helping you with your next paragraph based on the current context of your note.

Additional Features

Personalize

Add to the ‘Memory’ of Chunk by storing specific instructions or detailed information that you would like Chunk to remember about you or your preferred working style.

Search Files and Images in Chat

While Chunk is designed to efficiently store and retrieve relevant information from large volumes of documents, maybe you just want to find out something quickly about a document or image. You can simply attach the file while in chat.

Seamless Notes Sync

iCloud integration for cross-device notes access and editing on iPhone, iPad and Mac. Full featured Rich Text Formatting on all devices.

Research Tool

The research search tool is specifically tailored for students and researchers who want to utilize academic sources for deeper more complex questions. Chunk will conduct a more in-depth search, targeting academic sources (up to 10) alongside the broader internet to provide 3 different comprehensive reports. Research Reports, Resource Reports and Outline Reports.

Secure + Privacy

Chunk isn’t ad supported and we don’t want to know or store any data we don’t have to store. We take security and privacy very seriously. Your data is NEVER used for training and our databases are private and secure using TLS for encrypted connections.

Tags + Filters

Tagging and filtering documents or notes increases query speeds and the quality of responses not possible on other A.I. platforms. Tags allow Chunk to focus on the right information for the given query while dramatically reducing hallucinations.