FAQ

DeepShelf is a cloud workspace designed for deep research and learning. Bring long sources such as papers, reports, recordings, drafts, and spreadsheets into one project, then ask AI questions, compare sources, and follow up. Turn your findings into downloadable reports. Citations in answers take you back to the original source with one click so you can verify them. Alongside DeepShelf 1.0, it supports GPT, Claude, DeepSeek, Kimi, and other models. Available models depend on your plan.

Tools like ChatGPT can read the files you send them, too. The difference is what happens after you upload. DeepShelf gives each source a first read and takes its own notes, a process called parsing. This has three benefits:

1. Later answers draw on your sources first and are more accurate.
2. Your sources stay together in one project, so you don’t have to send them again when you start a new chat.
3. Every citation in an answer can be opened to check the original: a PDF opens at the passage in its original layout, a recording jumps to the matching time and transcript, and Word, TXT, and EPUB files open at the parsed text.

Yes. Put them in one project, select the sources you want for this question, and ask where they agree, where they conflict, and how they connect. We’ve tested this with several full-length books at once, including questions that span books, and the results far exceeded similar products. That scale isn’t the ceiling, either. The real limits come from your plan: how many sources a project can hold and how large each file can be. Scans and spreadsheets don’t work as well as PDFs with selectable text. Open the citations to confirm each connection it points out.

DeepShelf supports PDF, Word (DOCX), plain text (TXT), ebooks (EPUB), images (JPG, JPEG, PNG), audio (WAV, MP3, M4A, OGG), webpages (HTML, HTM), spreadsheets (CSV, XLSX), PowerPoint (PPTX), and more. File size and the number of files per project vary by plan.

Yes. New accounts get a seven-day Plus trial with 100 credits in total. When it ends, your account moves to Free automatically. Plus benefits end, but you can keep using DeepShelf. Parsing sources, asking questions, and creating reports all use credits, and how many depends on the length of your sources and the model you choose. Files you uploaded during your trial or a paid plan can still be asked about and cited on Free. Check your balance and history under Settings → Usage.

DeepShelf does not use your uploaded sources, conversations, or generated results to train large language models.

We keep your sources, along with the generation process and results, long-term so you can revisit them and continue working at any time. When you no longer need them, you can delete projects or sources in the workspace. We also keep the request logs needed to diagnose faults, maintain security, and prevent abuse.

DeepShelf is a cloud service. To parse files and generate answers, the content each task needs is sent to the relevant model and parsing services. We recommend not uploading sensitive information unrelated to the current task.