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2 / 4 Tools
| Attribute | Arxiv Sanity Preserver by Andrej Karpathy & Community | Heptabase by Heptabase, Inc. |
|---|---|---|
| Category | Research | Research Subcategory: Visual PKM & Research Canvas |
| Rating & Reviews | ★New / 5.0 0 verified reviews Weighted score: 0.00 | ★New / 5.0 0 verified reviews Weighted score: 0.00 |
| Pricing Model | free | paid |
| Starting Price | Free 100% free community service. | 8.99 Subscription-only with a 7-day free trial. Pricing starts at approximately $8.99/month (annual billing) or $11.99/month (monthly billing). No perpetual free plan. |
| Platforms | Web | macOSWindowsLinuxiOSAndroidWeb |
| AI Capabilities | TF-IDF Paper Similarity ScoringTop Weekly & Monthly PapersPersonalized ArXiv FeedVector Embeddings Search | Semantic card searchVisual mind mappingPDF text annotationLocal-first data management |
| Overview | Curated paper discovery and recommendation engine built to filter through daily ArXiv preprints. | Visual knowledge management workspace that combines nested whiteboards, markdown cards, and PDF annotations for complex research. |
| Tags | arxivmachine-learningpreprintspapers | pkmknowledge-managementwhiteboardresearchmarkdown |
