# ResearchRabbit vs Zeli

ResearchRabbit records 831,571 monthly visits with +3.1% month-over-month growth and Free pricing. Zeli records 56,147 monthly visits with -46.8% growth and Free pricing.

| Metric | [ResearchRabbit](https://openaitools.app/tool/researchrabbit) | [Zeli](https://openaitools.app/tool/zeli) |
| :--- | :--- | :--- |
| Website URL | https://www.researchrabbit.ai | https://zeli.app |
| Categories | AI Research Tool, AI Research Papers, AI Assistant, AI Knowledge Management | AI Article Summarizer, AI Papers, AI News, AI Research Papers |
| Pricing Model | Free | Free |
| Monthly Visits | 831,571 | 56,147 |
| MoM Growth Rate | +3.1% | -46.8% |
| Primary Market | United States | China |
| Direct Visits | 372,949 | 39,950 |
| Review Score | 4.5 | 4.3 |
| Saved Count | 16 | 0 |
| Supported Platforms | Website | Website |

## ResearchRabbit

ResearchRabbit is a free tool designed to make literature reviews faster and less overwhelming. Instead of dumping keyword results into a flat list, it turns a single paper you trust into an interactive map: you see related works, who cites whom, which authors are central, and where the field branches. The aim is to let your curiosity drive discovery rather than forcing you to guess the right search terms.

The engine is built on iterative chaining. It analyses a seed paper's bibliography, citations and co-authors to recommend related articles, and as you save and explore new papers the recommendations adjust to your interests. You can also connect your existing reference library so ResearchRabbit and your collection work together, making it easier to see how a literature review connects.

Scale is a core part of its pitch: ResearchRabbit reports being trusted by over one million researchers worldwide, with access to more than 320 million academic papers, and adoption across institutions ranging from Deakin and Monash to Cornell, Stanford and Harvard. It is operated by Litmap Limited and maintains a free sign-up flow.

**Pricing & Plans:** Free. ResearchRabbit is free to sign up and use for literature discovery and mapping, with no paid consumer plans advertised on its site. Recommendations run on publicly available scholarly metadata covering over 320 million papers.

- **Visual Paper Mapping:** Start from one paper and see how research connects through a visual map of related works, authors and citations.
- **Recommendation Engine:** The more you explore and select, the better it learns your interests, surfacing smarter and more relevant recommendations.
- **Literature Review Discovery:** Explore how your existing review connects and discover papers you may have missed, avoiding endless flat article lists.
- **Reference Manager Integration:** Bring your reference library and ResearchRabbit together so your collection and discovery work in one place.
- **Author & Topic Tracking:** Follow new works, emerging authors and trending topics as your research field evolves.

**Strengths:** Completely free to sign up and use; Visual, iterative maps beat long flat article lists for exploring a field; Learn-as-you-go recommendations improve with use; Integrates with your existing reference library

**Limitations:** It surfaces and maps papers rather than reading them for you—no automatic summarisation of full texts; No built-in full-text access; you still need your library or publisher access to read the papers; Deeper use benefits from connecting a reference manager, which adds a setup step; Some advanced collaboration and sharing features sit behind institutional or optional arrangements

[Profile (Markdown)](https://openaitools.app/tool/researchrabbit.md)

## Zeli

Zeli solves the oldest problem with Hacker News: the front page is a list of headlines, and deciding which of the thirty stories deserves your attention means opening all of them. Zeli mirrors that front page, attaches an AI-written summary and a representative key quote to each story, and translates everything into seven languages. The ranking tracks news.ycombinator.com and refreshes every fifteen minutes, so the feed stays current without you checking the orange site directly.

The structure is built around permanent, citable pages. Every story gets a URL keyed to its Hacker News item id — zeli.app/story/{id} in English, or zeli.app/{lang}/story/{id} for the other languages — carrying the translated title, the original title, a summary, a key quote and translated highlights from the discussion. Every day also gets a permanent archive of the complete front page, so a digest can be retrieved after that day has scrolled away. Alongside the news feed, Zeli digests HuggingFace's daily AI papers with translated titles and summaries, which makes it useful for keeping up with research as well as with developer chatter.

Content languages are English, Chinese, Japanese, Korean, German, Spanish and Russian, with English served at the root and no language prefix. There is no account, no API key and no cost; an RSS feed bundles one item per day instead of flooding your reader, and the site can be installed as a PWA. For programmatic use, Zeli also publishes plain-markdown daily digests, JSON endpoints and an RSS feed aimed at feeds and AI agents. It requires no JavaScript and is served from an edge cache, so it is unusually light to read.

**Pricing & Plans:** Free. No account, no API key and no payment; the full site, the RSS feed and the machine-readable digests are all available at no cost.

- **AI summaries on every Hacker News story:** Each story carries a short summary generated from the linked article plus a standout key quote, so you can judge relevance before clicking through.
- **Seven-language translation:** The whole feed — titles, summaries and top comment highlights — is available in English, Chinese, Japanese, Korean, German, Spanish and Russian.
- **Daily front-page archive:** Every day gets a permanent page containing every story that hit the front page, retrievable long after the feed has moved on.
- **HuggingFace AI paper digests:** Daily AI papers are surfaced with translated titles and AI summaries, making Zeli a research reader as well as a news reader.
- **Machine-readable outputs:** One-item-per-day RSS feeds, plain-markdown digests, JSON endpoints and a sitemap make Zeli easy to pipe into readers or AI agents.

**Strengths:** Turns the Hacker News front page into a fast, scannable daily brief; Seven languages with genuinely translated titles, summaries and comment highlights; Permanent, citable story and daily archive pages that never expire; Free, no signup, no API key, installable as a PWA

**Limitations:** Summaries are machine-generated and are not fact-checked by a human; Real summaries exist only in seven languages — other locales fall back to English; It covers Hacker News and HuggingFace papers only, not your own reading list or arbitrary URLs; Keys off Hacker News ranking, so niche topics that never hit the front page are not included

[Profile (Markdown)](https://openaitools.app/tool/zeli.md)

## Frequently Asked Questions

### How do ResearchRabbit and Zeli compare in monthly traffic?

ResearchRabbit has 831,571 monthly visits, while Zeli has 56,147. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

ResearchRabbit has a month-over-month growth rate of +3.1%; Zeli has -46.8%.

### How does pricing compare?

ResearchRabbit: Free. Free. ResearchRabbit is free to sign up and use for literature discovery and mapping, with no paid consumer plans advertised on its site. Recommendations run on publicly available scholarly metadata covering over 320 million papers. Zeli: Free. Free. No account, no API key and no payment; the full site, the RSS feed and the machine-readable digests are all available at no cost.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [Semantic Scholar](https://openaitools.app/tool/semantic-scholar) | 8,198,672 | +5.8% | Free | Offers a comprehensive academic search engine with robust citation graphs, but lacks ResearchRabbit’s visual collection mapping interface. | [.md](https://openaitools.app/tool/semantic-scholar.md) |
| 2 | [Consensus](https://openaitools.app/tool/consensus) | 6,014,388 | -1.2% | Freemium | Synthesizes answers directly from peer-reviewed studies using AI, but does not provide interactive citation network maps. | [.md](https://openaitools.app/tool/consensus.md) |
| 3 | [SciSpace](https://openaitools.app/tool/scispace) | 4,464,111 | +8.6% | Freemium | Provides an all-in-one workspace for reading and explaining scientific papers, but lacks interactive citation network graphs. | [.md](https://openaitools.app/tool/scispace.md) |
| 4 | [Elicit](https://openaitools.app/tool/elicit) | 1,751,507 | +3.1% | Freemium | Automates systematic literature reviews and evidence extraction deeply, whereas ResearchRabbit centers on visual exploration and paper discovery. | [.md](https://openaitools.app/tool/elicit.md) |
| 5 | [Jenni](https://openaitools.app/tool/jenni) | 1,498,133 | +5.2% | Freemium | Focuses on AI-assisted academic writing and drafting with inline citations rather than exploratory citation mapping. | [.md](https://openaitools.app/tool/jenni.md) |
| 6 | [Rayyan](https://openaitools.app/tool/rayyan) | 1,116,437 | +7.9% | Freemium | Excels at collaborative systematic review screening and deduplication, but offers less visual exploration than ResearchRabbit. | [.md](https://openaitools.app/tool/rayyan.md) |
| 7 | [Readray (formerly Lilys AI)](https://openaitools.app/tool/lilys-ai) | 967,113 | -9.7% | Freemium | A proactive AI reading lens for papers, videos, and web pages | [.md](https://openaitools.app/tool/lilys-ai.md) |
| 8 | [Scite](https://openaitools.app/tool/scite) | 841,974 | +1.1% | Free Trial, Contact for Pricing | Tracks how papers are cited with Smart Citations, offering deeper citation context than ResearchRabbit's graphical mapping. | [.md](https://openaitools.app/tool/scite.md) |
| 9 | [Connected Papers](https://openaitools.app/tool/connected-papers) | 750,576 | +3.1% | Freemium | Provides a similar visual graph of related academic papers, but focuses more on similarity trees than customizable collections. | [.md](https://openaitools.app/tool/connected-papers.md) |
| 10 | [Summarizer.org](https://openaitools.app/tool/summarizer-org) | 398,509 | +1.3% | Freemium | Free AI Summarizer for text, articles, URLs and images | [.md](https://openaitools.app/tool/summarizer-org.md) |

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Source: https://openaitools.app/compare/researchrabbit-vs-zeli

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