PromptivityCompare AI tools for one job
Side-by-side comparisons for a single task, built only from each vendor's published help pages, with links and dates.
Comparisons
- Best AI tool for summarizing a long PDF: ChatGPT vs Claude vs Gemini vs Gemini Notebook
Four tools you may already have, compared on what their own help pages say about long PDFs: size limits, charts, checking answers against the page, and what happens to your file. Sources read 2026-10-24.