# Consensus vs PDF GPT Consensus records 6,014,388 monthly visits with -1.2% month-over-month growth and Freemium pricing. PDF GPT records 1,507 monthly visits with -7% growth and Freemium pricing. | Metric | [Consensus](https://openaitools.app/tool/consensus) | [PDF GPT](https://openaitools.app/tool/pdf-gpt) | | :--- | :--- | :--- | | Website URL | https://consensus.app | https://www.pdfgpt.chat | | Categories | AI Search Engine, AI Research Tool, AI Papers, AI Article Summarizer | AI Chatbot, AI PDF, AI PDF Summarizer, AI Search Engine | | Pricing Model | Freemium | Freemium | | Monthly Visits | 6,014,388 | 1,507 | | MoM Growth Rate | -1.2% | -7% | | Primary Market | United States | Thailand | | Direct Visits | 2,918,713 | 616 | | Review Score | 4.7 | 3.8 | | Saved Count | 31 | 11 | | Supported Platforms | Website | Website | ## Consensus Consensus works like a scholarly search engine supercharged by AI. Instead of returning a flat list of PDFs, you ask a natural-language research question and Consensus extracts claims from relevant papers, then shows you what the studies actually find. A Consensus Meter summarizes the weight of evidence for yes/no questions, so you can see at a glance whether scientists largely agree, disagree, or remain divided. The platform indexes hundreds of millions of peer-reviewed papers spanning medicine, biology, psychology, economics and more. Answers link straight back to the source studies, and you can filter by study design, journal quality, sample size and publication year to separate stronger evidence from weaker signals. Features like Deep Search, Topic Synthesis and Skills let researchers build a working knowledge base over time rather than starting from scratch on every query. Consensus is designed for researchers, clinicians, students and analysts who need trustworthy signals from the scientific record without drowning in irrelevant results. A free tier gives limited AI-powered searches each month, while paid plans unlock unlimited use, advanced filters and deeper synthesis. **Pricing & Plans:** Freemium. A free tier offers a limited number of AI-powered searches per month; paid individual plans unlock unlimited searches and advanced research features, with discounted student pricing and team/enterprise options. - **Evidence-grounded answers:** Ask a research question in plain language and get answers synthesized from peer-reviewed studies, with each claim linked to its source paper. - **Consensus Meter:** A visual summary shows how the scientific literature leans on a yes/no question, indicating agreement, disagreement or mixed evidence. - **Powerful filters:** Narrow results by study design, sample size, journal quality, publication year and more to prioritize high-quality evidence. - **Topic synthesis and Deep Search:** Aggregate findings across many studies into structured summaries that map what is known and where the gaps are. - **Research workspace:** Save papers, organize sources and build a persistent knowledge base for literature reviews and ongoing projects. **Strengths:** Answers cite real peer-reviewed papers, so claims are verifiable; Consensus Meter makes it easy to gauge scientific agreement at a glance; Rich filters help separate high-quality evidence from weaker studies; Fast, clean interface designed around research workflows **Limitations:** Free tier caps the number of AI-assisted searches per month; Coverage is strongest for STEM and health fields, lighter for some humanities topics; It guides you toward sources but is not a substitute for reading full papers [Profile (Markdown)](https://openaitools.app/tool/consensus.md) ## PDF GPT PDF GPT turns document reading into a conversation. You upload PDFs, ask whatever you need to know — a specific figure, a definition, the gist of a chapter — and the assistant responds using only the contents of your documents. The distinguishing feature is citation: each answer is backed by a clickable reference to the page it came from, with the relevant passage highlighted, so you can verify claims instead of trusting the model. Search works across multiple uploaded documents, which is what makes it practical for literature reviews, contract comparisons and multi-file research. Beyond question answering, the site positions the tool for generating study material: summaries, study guides and presentation outlines built from the source PDF. Translations are supported across more than 90 languages, which helps when the source document is not in your working language. Organisation features include tagging documents and then chatting with groups defined by those tags, keeping separate projects from bleeding into each other. The site states it is trusted by over 500,000 researchers and professionals and offers a free entry point, with 'Try for Free' as the primary call to action on the homepage. The product is operated by Pearl Labs. Because a free tier is advertised but published price tiers are not shown on the homepage, check the signup or pricing flow for the exact limits on file size, document count and advanced features before relying on it for large workloads. **Pricing & Plans:** The site advertises a free way to start via 'Try for Free'. Detailed paid tiers are not published on the homepage, so verify current limits and pricing during signup. - **Cited answers with page references:** Every response links back to the page it came from and highlights the supporting passage, so you can check the evidence rather than take the answer on trust. - **Summarise long documents:** Generate instant summaries of lengthy PDFs to decide what deserves a close read and what you can skim. - **Search across multiple PDFs:** Upload several documents and query them together, finding a specific detail without opening files one by one. - **Tag and organise documents:** Apply tags to PDFs and then chat with a group defined by a tag, keeping distinct projects separated. - **Translation across 90+ languages:** Read and work with source documents in other languages, with output aimed at your working language. **Strengths:** Answers include clickable page citations and highlighted passages; Handles multiple PDFs in one chat, not just single files; Summarisation, translation and study-material generation in the same tool; Tagging keeps separate research projects organised **Limitations:** Detailed paid pricing and usage limits are not published on the homepage; Answer quality still depends on how text-searchable the PDF is; Scanned or image-only PDFs may need OCR before they work well [Profile (Markdown)](https://openaitools.app/tool/pdf-gpt.md) ## Frequently Asked Questions ### How do Consensus and PDF GPT compare in monthly traffic? Consensus has 6,014,388 monthly visits, while PDF GPT has 1,507. Traffic estimates describe audience size, not product quality. ### How do their growth rates compare? Consensus has a month-over-month growth rate of -1.2%; PDF GPT has -7%. ### How does pricing compare? Consensus: Freemium. Freemium. A free tier offers a limited number of AI-powered searches per month; paid individual plans unlock unlimited searches and advanced research features, with discounted student pricing and team/enterprise options. PDF GPT: Freemium. The site advertises a free way to start via 'Try for Free'. Detailed paid tiers are not published on the homepage, so verify current limits and pricing during signup. ## Alternatives | # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | 1 | [Perplexity](https://openaitools.app/tool/perplexity-ai) | 88,310,223 | -3.7% | Freemium | Covers general web sources alongside academic papers, but lacks specialized scientific synthesis metrics and consensus ratings. | [.md](https://openaitools.app/tool/perplexity-ai.md) | | 2 | [Semantic Scholar](https://openaitools.app/tool/semantic-scholar) | 8,198,672 | +5.8% | Free | Completely free access to a massive scholarly index, but offers less automated natural-language evidence synthesis than Consensus. | [.md](https://openaitools.app/tool/semantic-scholar.md) | | 3 | [Kagi Search](https://openaitools.app/tool/kagi-search) | 4,647,605 | +3.2% | Free Trial, Paid | A paid, ad-free search engine that answers to its users | [.md](https://openaitools.app/tool/kagi-search.md) | | 4 | [SciSpace](https://openaitools.app/tool/scispace) | 4,464,111 | +8.6% | Freemium | AI research platform for reading, understanding and writing scientific papers | [.md](https://openaitools.app/tool/scispace.md) | | 5 | [PDFgear](https://openaitools.app/tool/pdfgear) | 2,845,280 | -3.4% | Free | A free, AI-powered PDF editor for every device | [.md](https://openaitools.app/tool/pdfgear.md) | | 6 | [Elicit](https://openaitools.app/tool/elicit) | 1,751,507 | +3.1% | Freemium | Performs advanced systematic review data extraction and evidence synthesis, but has a more complex interface than Consensus. | [.md](https://openaitools.app/tool/elicit.md) | | 7 | [LightPDF](https://openaitools.app/tool/lightpdf-com) | 1,742,568 | -15.3% | Freemium | Free AI-powered PDF editor, converter and reader for every device | [.md](https://openaitools.app/tool/lightpdf-com.md) | | 8 | [Jenni](https://openaitools.app/tool/jenni) | 1,498,133 | +5.2% | Freemium | The AI workspace where researchers read, write, and cite with every claim traceable to its source | [.md](https://openaitools.app/tool/jenni.md) | | 9 | [Rayyan](https://openaitools.app/tool/rayyan) | 1,116,437 | +7.9% | Freemium | AI-assisted systematic review software for screening, extraction, and evidence synthesis at scale | [.md](https://openaitools.app/tool/rayyan.md) | | 10 | [UPDF AI](https://openaitools.app/tool/updf-ai) | 1,050,387 | -7.2% | Freemium, Free Trial, Paid | Cross-platform PDF editing with GPT-powered AI for reading, translating, and signing documents | [.md](https://openaitools.app/tool/updf-ai.md) | --- Source: https://openaitools.app/compare/consensus-vs-pdf-gpt More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)