Ai2 Asta
Recherche IA
AI research assistant for finding papers and analyzing data
Au 6 oct. 2026, notre premier choix est Elicit (GPA de 2.4), puis ChatPDF et Semantic Scholar.
Classé par ToolGPA le 6 oct. 2026 · fiches vérifiées jusqu’au 9 oct. 2026
Des outils IA pour trouver, lire et résumer des sources, des articles et des documents.
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.
Formule gratuite · à partir de $49/mois
Pour : 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.
Tarifs et détails de ElicitFormule gratuite · à partir de $89.99/an
Pour : 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.
Tarifs et détails de ChatPDFGratuit
Pour : 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.
Tarifs et détails de Semantic ScholarClassé le 6 oct. 2026 d’après ce que montre chaque fiche et ce que les gens disent de l’outil, pas d’après nos propres tests. Comment nous classons
Le prix face à ce que vous obtenez
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.
Voir les 25 sur le graphique
Garder ou faire
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.
Garder28À vous de voir0Faire0Aucun de ces outils de recherche par IA n’est à faire soi-même.
28 outils
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Au 6 oct. 2026, ToolGPA classe Elicit en premier (pour : most people looking for papers on a research question), ChatPDF en deuxième (pour : anyone with a document to question, not papers to find), Semantic Scholar en troisième (pour : anyone who wants to pay nothing).
D’après ce que montrent les pages de chaque outil (prix, formule gratuite, plateformes, fonctionnalités et limites) et d’après ce que les gens en disent dans les avis et les discussions publics. Pas d’après nos propres tests. La première place va à l’outil qui convient au plus grand nombre, et la deuxième et la troisième aux meilleurs choix pour les lecteurs qu’il laisse de côté.