AI Visibility Leaderboard
AI Document Q&A Tools AI Brand Rankings
ChatDOC is the current #1 entity in AI Document Q&A Tools, with a 90.9 AI Index and 91% mention rate. Within this public leaderboard snapshot, it is the clearest benchmark for how tracked AI systems answer AI Document Q&A Tools comparison prompts. Humata ranks #2 and trails ChatDOC by 1.9 AI Index points. That gap is the first number to check when deciding whether the top of the category is leader-dominated or closely contested. PDF.ai ranks #3 and completes the current podium. Comparing the top three across individual engine tabs helps separate broad recommendation consistency from single-engine strength. The latest public snapshot refreshed on 2026-04-28, covering 8 engines and 20 entities. Freshness matters because AI recommendations can shift as models, retrieval sources, prompts, and category evidence change.
AI Document Q&A Tools tracks which products are most consistently surfaced by AI answer engines in this category. In the latest public snapshot, ChatDOC, Humata, and PDF.ai lead the overall ranking across 8 engines. The overall AI Index combines ranking strength and mention-rate signals. ChatDOC ranks #1 with a 90.9 AI Index and 91% mention rate, leading Humata by 1.9 points. Use the engine tabs to see where that position comes from. The overall view shows the combined category ranking, while engine-level views show whether a product is broadly visible or depends on strength in only a few answer systems.
The overall ranking gives a fast read on which products AI systems currently surface most often for AI Document Q&A Tools prompts. The engine tabs add the important detail: they show where visibility is broad, uneven, or concentrated in one answer system. Rank alone is not enough. Mention rate, score gaps, refresh date, and engine-level outliers help show whether a product's position looks durable or depends on a narrower set of prompts and engines. Read this page as AI visibility evidence, not as a product-quality, compliance, safety, or market-share ranking.
AI Document Q&A Tools publishes 19 ranked brands from the accepted leaderboard snapshot. ChatDOC is rank 1 with composite index 89.93.
Brand rankings
| Rank | Brand | Visibility score | AI engine summary |
|---|---|---|---|
| 1 | ChatDOC | 89.93 | Rank 1 in AI Document Q&A Tools with composite index 89.93; mention rate 90 |
| 2 | Unriddle | 89.47 | Rank 2 in AI Document Q&A Tools with composite index 89.47; mention rate 89.67 |
| 3 | Afforai | 88.27 | Rank 3 in AI Document Q&A Tools with composite index 88.27; mention rate 88.33 |
| 4 | Humata | 87.93 | Rank 4 in AI Document Q&A Tools with composite index 87.93; mention rate 87.83 |
| 5 | ChatPDF | 86.97 | Rank 5 in AI Document Q&A Tools with composite index 86.97; mention rate 86.5 |
| 6 | PDF.ai | 86.43 | Rank 6 in AI Document Q&A Tools with composite index 86.43; mention rate 86.17 |
| 7 | Explainpaper | 85.88 | Rank 7 in AI Document Q&A Tools with composite index 85.88; mention rate 85.67 |
| 8 | PopAi | 85.18 | Rank 8 in AI Document Q&A Tools with composite index 85.18; mention rate 85 |
| 9 | AskYourPDF | 84.88 | Rank 9 in AI Document Q&A Tools with composite index 84.88; mention rate 84.67 |
| 10 | Doclime | 83.82 | Rank 10 in AI Document Q&A Tools with composite index 83.82; mention rate 83.67 |
| 11 | DocuChat | 83.52 | Rank 11 in AI Document Q&A Tools with composite index 83.52; mention rate 83.33 |
| 12 | Coral AI | 83.25 | Rank 12 in AI Document Q&A Tools with composite index 83.25; mention rate 83 |
| 13 | Docalysis | 83.2 | Rank 13 in AI Document Q&A Tools with composite index 83.2; mention rate 83 |
| 14 | Sharly | 83 | Rank 14 in AI Document Q&A Tools with composite index 83; mention rate 82.67 |
| 15 | MyReader | 81.54 | Rank 15 in AI Document Q&A Tools with composite index 81.54; mention rate 81.17 |
| 16 | PDFGPT.io | 80.92 | Rank 16 in AI Document Q&A Tools with composite index 80.92; mention rate 80.67 |
| 17 | PDFConvo | 79.88 | Rank 17 in AI Document Q&A Tools with composite index 79.88; mention rate 79.5 |
| 18 | Chatize | 79.62 | Rank 18 in AI Document Q&A Tools with composite index 79.62; mention rate 79.33 |
| 19 | Ask PDF | 78.82 | Rank 19 in AI Document Q&A Tools with composite index 78.82; mention rate 78.33 |
Methodology FAQ
How is this leaderboard calculated?
Overall ranking combines the latest AI visibility signals across tracked engines for this industry.
Why do rankings differ across engines?
Each AI engine can prefer different brands, evidence, and recommendation patterns, so engine-specific rankings can vary.
How often is this industry updated?
This industry page updates whenever new completed leaderboard runs are available.
How to read this page
This page uses the same leaderboard snapshot for its headline, visible metrics, and comparison table. Read rank together with visibility score: rank shows relative position in the current view, while the score records measured AI visibility. Nearby rows provide comparison context. Follow the related leaderboard links to compare the wider set of tracked entities and continue exploring pages based on the same snapshot.
Scores describe the data available for the snapshot date and should be read as a point-in-time comparison, not a permanent rating. Differences between rows show relative visibility within this leaderboard view. A later snapshot can change both rank and score when the underlying evaluations change. The static table keeps the primary comparison readable without requiring interactive controls.