Ai2 Asta
Investigación IA
AI research assistant for finding papers and analyzing data
GratisWeb
Mejores Herramientas de investigación con IA (2026): nuestro top 3 de 28, en orden
Al 6 oct 2026, nuestra primera opción es Elicit (2.4 de GPA), después ChatPDF y Semantic Scholar.
Clasificación de ToolGPA del 6 oct 2026 · fichas revisadas hasta el 9 oct 2026
Herramientas de IA para encontrar, leer y resumir fuentes, artículos y documentos.
Nuestro top 3 de herramientas de investigación con IA
These three do different jobs more than they compete. Elicit comes first for finding papers: its free plan has no cap on search, summaries or chat with papers. ChatPDF is second for asking questions of a document you already have. Semantic Scholar is third as the search engine with nothing to pay. Consensus narrowly missed: its free tier stops at 10 Pro messages and 3 Deep Searches a month, and its paid prices could not be confirmed. Anara answers across a whole library of files but has no Windows or Android app. ResearchRabbit maps how papers connect, free with unlimited searches.
Primero: Elicit
Plan gratuito · desde $49/mes
Para: Most people looking for papers on a research question
Elicit searches more than 138 million academic papers from a research question, not exact keywords. Its free Basic plan includes unlimited search, unlimited paper summaries and chat with papers, plus Zotero import. A Research Agent writes cited reports, and a separate workflow handles screening and data extraction for systematic reviews. Know the limits: it runs in a browser, with a Chrome extension and no phone or desktop app listed. Research Agent and report usage is limited on Basic, the systematic review workflow starts at Pro, at $49 per user a month billed annually, and the $11 academic Plus plan appears only when Academic is selected on the pricing page.
Precios y detalles de ElicitSegundo: ChatPDF
Plan gratuito · desde $89.99/año
Para: Anyone with a document to question, not papers to find
ChatPDF answers questions about a file you bring: a PDF, Word, PowerPoint, Markdown or text file, or a YouTube or website link, with the answer shown beside the source and clickable citations. The free plan covers 2 documents and 20 messages a day and works without an account, and it runs on the web, Mac, Windows, iPhone and Android. It is second because it reads what you give it more than it searches: its paper summaries are built from abstracts, and chatting with a full paper works only for open-access papers. Free files stop at 120 pages or 10 MB. Plus is $14.99 a month or $89.99 a year on the US App Store, and the website sets its own price per visitor.
Precios y detalles de ChatPDFTercero: Semantic Scholar
Gratis
Para: Anyone who wants to pay nothing
Semantic Scholar is a search engine for scientific papers that is entirely free, with no paid plans, built by the nonprofit Allen Institute for AI. It indexes more than 200 million papers from all fields of science, and a free account adds a library, email alerts and Research Feeds that recommend new papers. It is third because its AI does less than the two above: the short TLDR summaries cover only computer science, biology and medicine, the Semantic Reader is in beta and covers mostly arXiv papers, and Ask This Paper works on a limited set of papers. There is no smartphone app; the site is designed to be used in mobile browsers.
Precios y detalles de Semantic Scholar
Clasificación del 6 oct 2026, a partir de lo que muestra cada ficha y de lo que dice la gente sobre la herramienta, no de pruebas nuestras. Cómo clasificamos
El precio contra lo que recibes
¿Qué herramientas de investigación con IA dan más por tu dinero?
Going by our grades, R Discovery, Semantic Scholar and Ai2 Asta give the most for the money among AI research tools: no tool on this chart scores higher without costing more.
Ver las 25 en el gráfico
Pagarla o hacerla
¿Podrías hacerte la tuya?
There is no plain version of a research tool. It is a library of papers and sources first, and a model that reads them second. You have neither.
Pagarla28Tú decides0Hacerla0De herramientas de investigación con IA, no hay nada que te harías tú.
Precio
Funciona en
Tiene que ser
28 herramientas
Herramientas
- 3.2GPA
- 2.4GPA
alphaXiv
Investigación IA
arXiv reading and discovery site with an AI research assistant
Plan gratuito · desde $8/mesWeb · iOS - 2.4GPA
Anara
Investigación IA
AI research assistant that cites the exact source passage
Plan gratuito · desde $8/mesWeb · macOS · iOS - 2.4GPA
AnswerThis
Investigación IA
AI literature review assistant with a library and writer
Plan gratuito · desde $14/mesWeb - 2.4GPA
AskYourPDF
Investigación IA
Chat with PDFs and other documents and get cited answers
Plan gratuito · desde $11.99/mesWeb · iOS · Android - 2.6GPA
ChatDOC
Investigación IA
Chat with PDFs and documents, with answers traced to the source
Prueba gratuita · desde $89.9/añoWeb - 2.8GPA
ChatPDF
Investigación IA
Ask questions about PDFs and get answers with citations
Plan gratuito · desde $89.99/añoWeb · macOS · Windows +2 - 2.4GPA
Connected Papers
Investigación IA
Visual graphs of similar academic papers for literature search
Plan gratuito · desde $6/mesWeb - 2.6GPA
Consensus
Investigación IA
AI search engine that answers questions from peer-reviewed papers
Plan gratuitoWeb · Android - 2.4GPA
Edison Scientific
Investigación IA
AI agents for scientific research, led by the Kosmos AI Scientist
Plan gratuitoWeb - 2.4GPA
Elicit
Investigación IA
AI research assistant for literature search and systematic reviews
Plan gratuito · desde $49/mesWeb - 2.2GPA
Humata
Investigación IA
Document Q&A with cited answers across your uploaded files
Plan gratuito · desde $9.99/mesWeb - 2.8GPA
Inciteful
Investigación IA
Free citation-network tools for exploring academic papers
GratisWeb - 2.6GPA
Keenious
Investigación IA
Academic search that recommends papers from your own text
Plan gratuito · desde $10/mesWeb - 2.6GPA
Liner
Investigación IA
AI search with cited answers, research agents and a writer
Plan gratuito · desde $14.99/mesWeb · macOS · Windows +2 - 2.0GPA
Litmaps
Investigación IA
Literature review tool that maps papers by their citations
Plan gratuito · desde $10/mesWeb - 2.4GPA
Logically
Investigación IA
AI workspace for references, PDF notes and paper writing
Plan gratuito · desde $12/mesWeb - 2.0GPA
OpenRead
Investigación IA
AI platform for searching, reading and comparing papers
Plan gratuitoWeb - 2.8GPA
Otio
Investigación IA
AI research workspace for chatting across many sources
Plan gratuito · desde $7/mesWeb · macOS · Windows +2 - 2.6GPA
Paperguide
Investigación IA
AI research platform for literature and systematic reviews
Plan gratuito · desde $12/mesWeb - 2.8GPA
R Discovery
Investigación IA
Paper discovery app with an AI assistant, PDF chat and audio
Plan gratuito · desde $69/añoWeb · iOS · Android - 2.2GPA
ResearchRabbit
Investigación IA
Literature discovery tool that maps how papers connect
Plan gratuito · desde $10/mesWeb - 2.6GPA
Scholarcy
Investigación IA
Summarizes research papers into interactive flashcards
Plan gratuito · desde $90/añoWeb - 2.4GPA
SciSpace
Investigación IA
AI research platform for literature review and reading papers
Plan gratuito · desde $12/mesWeb · iOS - 2.2GPA
Scite
Investigación IA
Research assistant that shows how papers have been cited
Prueba gratuita · desde $20/mesWeb - 3.2GPA
Semantic Scholar
Investigación IA
Free AI-powered search engine for scientific literature
GratisWeb - 2.8GPA
STORM
Investigación IA
Open-source AI that writes Wikipedia-style reports with citations
GratisWeb - 2.2GPA
Undermind
Investigación IA
AI literature search agent that reads hundreds of papers
Plan gratuito · desde $16/mesWeb
Preguntas frecuentes
¿Qué herramientas de investigación con IA son mejores?
Al 6 oct 2026, ToolGPA las ordena así: Elicit primero (para: most people looking for papers on a research question), ChatPDF segundo (para: anyone with a document to question, not papers to find), Semantic Scholar tercero (para: anyone who wants to pay nothing).
¿Cómo clasifica ToolGPA herramientas de investigación con IA?
A partir de lo que muestran las propias páginas de cada herramienta (precio, plan gratuito, plataformas, funciones y límites) y de lo que dice la gente en reseñas y conversaciones públicas. No de pruebas nuestras. El primer puesto va a la herramienta que le sirve a más gente, y el segundo y el tercero a las mejores opciones para los lectores que esa deja fuera.