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AI Tool Index

Pricing:
PerplexityResearch

AI-powered search engine for research

15M+
4.8
Free/$20mo
ElicitResearch

AI research assistant for literature review

2M+
4.7
Free/$10mo
ConsensusResearch

AI search engine for scientific research

1M+
4.6
Free/$9mo
GrokIC Pick
Research

xAI conversational AI with real-time data

50M+
4.5
X Premium $16mo
SciSpaceIC Pick
Research

AI copilot for scientific papers

8M+
4.7
Free/$12mo
Readwise ReaderIC Pick
Research

Read-it-later app with AI highlights

500K+
4.9
$8mo
Feedly+LeoResearch

AI-powered RSS reader and content aggregator

30M+
4.4
Free/$12mo
You.comResearch

AI search engine with multiple modes

3M+
4.3
Free/$15mo
Exa.aiResearch

Neural search API for developers

200K+
4.6
Free tier
Connected PapersResearch

Visual tool for academic paper discovery

1M+
4.5
Free/$3mo
ExplainpaperResearch

AI that explains complex research papers

500K+
4.4
Free
KagiResearch

Premium ad-free search with AI features

300K+
4.8
$5-10mo
Summarize.techResearch

AI video summarization tool

1M+
4.2
Free
GlaspResearch

Social web highlighter with AI summaries

400K+
4.4
Free
Ground NewsResearch

AI-powered news comparison platform

2M+
4.6
Free/$10mo
Semantic ScholarIC Pick
Research

AI-powered academic paper search engine

5M+
4.7
Free
ScholarcyResearch

AI article summarizer and flashcard maker

800K+
4.3
Free/$10mo
Research RabbitIC Pick
Research

AI-driven citation and paper discovery

600K+
4.5
Free
Scite.aiResearch

Smart citations showing context and support

400K+
4.5
Free/$12mo
Iris.aiResearch

AI research workspace for R&D teams

150K+
4.3
$50mo
LitmapsResearch

Interactive citation mapping for researchers

300K+
4.4
Free/$10mo
IncitefulResearch

Citation network analysis for papers

100K+
4.2
Free
TavilyResearch

Search API built for AI agents

150K+
4.5
Free/$50mo
ChatPDFResearch

Chat with any PDF document using AI

5M+
4.4
Free/$5mo
HumataResearch

AI tool to ask questions about documents

1M+
4.3
Free/$15mo
UnriddleIC Pick
Research

AI reading copilot for complex documents

300K+
4.5
Free/$16mo
CradleResearch

AI platform for protein and biology R&D

20K+
4.4
Custom
System ProResearch

AI literature review and synthesis tool

50K+
4.2
Free/$20mo
KeeniousResearch

AI article recommender for your writing

100K+
4.1
Free/$5mo
PaperpalResearch

AI academic writing and grammar assistant

500K+
4.4
Free/$12mo
WritefullResearch

AI writing aid for academic manuscripts

300K+
4.3
Free/$16mo
TrinkaResearch

AI grammar checker for academic writing

400K+
4.2
Free/$10mo
Jenni AIResearch

AI writing assistant with citations

1M+
4.3
Free/$12mo
Lateral.ioResearch

AI-powered document analysis and linking

50K+
4.1
Free/$29mo
KahubiResearch

AI knowledge base for research teams

30K+
4.0
$15mo
Notebook LMIC Pick
Research

Google AI notebook for source grounding

5M+
4.7
Free
AfforaiResearch

AI reference manager and document chat

200K+
4.3
Free/$10mo
ZoteroResearch

Open-source reference manager with plugins

10M+
4.6
Free
MendeleyResearch

Reference manager with AI recommendations

8M+
4.2
Free
RayyanResearch

AI tool for systematic review screening

500K+
4.5
Free/$10mo
ASReviewResearch

Active learning for systematic reviews

100K+
4.3
Free
CovidenceResearch

Systematic review management platform

200K+
4.4
$17mo
Dimensions.aiResearch

Linked research data and analytics

1M+
4.5
Free/$60mo
Lens.orgResearch

Open scholarly and patent search platform

500K+
4.3
Free
PatSnapResearch

AI patent analytics and IP intelligence

200K+
4.4
Custom
EspacenetResearch

Free patent search with AI translation

3M+
4.1
Free
Google PatentResearch

Search patents with AI prior art finder

5M+
4.3
Free
Brave SearchResearch

Private AI search with summarization

10M+
4.4
Free/$3mo
PhindIC Pick
Research

AI search engine for technical questions

2M+
4.5
Free/$15mo
Andi SearchResearch

Conversational AI search with citations

500K+
4.2
Free
MetaphorResearch

AI search using natural language prompts

100K+
4.3
Free tier
Devv.aiResearch

AI search engine for developers

300K+
4.3
Free
Clarivate Web of ScienceResearch

Premier citation database with AI tools

2M+
4.5
Institutional
Scopus AIResearch

Elsevier abstract database with AI summaries

2M+
4.4
Institutional
Wolfram AlphaResearch

Computational knowledge engine

10M+
4.6
Free/$5mo
StatistaResearch

Statistics and market data platform

3M+
4.4
Free/$39mo
SurveyMonkey GeniusResearch

AI-assisted survey creation and analysis

5M+
4.3
Free/$25mo
Typeform AIResearch

AI form and survey builder

3M+
4.4
Free/$25mo
Qualtrics XMResearch

Enterprise research and experience platform

2M+
4.5
Custom
DovetailIC Pick
Research

AI research analysis for user insights

200K+
4.5
Free/$29mo
Notably AIResearch

AI qualitative research analysis platform

50K+
4.2
Free/$25mo
Speak AIResearch

AI transcription and qualitative analysis

100K+
4.3
$19mo
MonkeyLearnResearch

No-code AI text analytics platform

100K+
4.2
Free/$299mo
Browse AIResearch

No-code web scraping with AI extraction

300K+
4.3
Free/$19mo
OctoparseResearch

AI-powered web scraping tool

500K+
4.2
Free/$75mo
DiffbotResearch

AI web data extraction and knowledge graph

100K+
4.4
$299mo
Import.ioResearch

Web data integration and extraction

150K+
4.1
Custom
CrayonResearch

AI competitive intelligence platform

100K+
4.4
Custom
KlueResearch

AI competitive enablement platform

80K+
4.5
Custom
KompyteResearch

Automated competitor tracking with AI

50K+
4.1
Custom
SparkToroResearch

Audience research and intelligence tool

200K+
4.4
Free/$38mo
BrandwatchResearch

AI social listening and media intelligence

300K+
4.3
Custom
MeltwaterResearch

AI media monitoring and analytics

200K+
4.2
Custom
TalkwalkerResearch

AI social analytics and trend detection

150K+
4.3
Custom
OwlerResearch

AI company insights and competitive data

500K+
4.1
Free/$35mo
CrunchbaseResearch

AI-enhanced company and startup database

2M+
4.4
Free/$29mo
PitchBookResearch

Private market data and AI analytics

500K+
4.6
Custom
CB InsightsResearch

AI market intelligence and analytics

300K+
4.4
Custom
AlphaSenseIC Pick
Research

AI search for financial research

200K+
4.6
Custom
SentieoResearch

AI financial research and analytics

100K+
4.3
Custom
Polygon.ioResearch

Financial market data APIs with AI

300K+
4.4
Free/$29mo
ValidisResearch

AI financial data extraction platform

30K+
4.1
Custom
GalacticaResearch

Meta AI model for scientific knowledge

200K+
4.0
Free
Ought (ICE)Research

AI research tools for reasoning chains

50K+
4.1
Free
Recall.aiResearch

AI meeting data extraction API

100K+
4.3
Usage-based
Mem.aiResearch

AI self-organizing knowledge base

500K+
4.3
Free/$10mo
Obsidian + AI pluginsIC Pick
Research

Knowledge graph with AI enhancements

2M+
4.7
Free/$8mo
Roam ResearchResearch

Networked note-taking for researchers

300K+
4.4
$15mo
LogseqResearch

Open-source knowledge base with AI

500K+
4.3
Free
RemnoteResearch

AI note-taking with spaced repetition

400K+
4.3
Free/$8mo
Typeset.ioResearch

AI journal finder and paper formatter

300K+
4.2
Free/$10mo
Penelope AIResearch

AI academic writing and editing tool

100K+
4.1
Free/$12mo
SilatusResearch

AI research report generation tool

80K+
4.2
Free/$20mo
Storm (Stanford)Research

AI that writes research articles from web

100K+
4.3
Free
OpenReadResearch

AI paper reading and analysis platform

400K+
4.3
Free/$6mo
R DiscoveryResearch

AI article recommender for researchers

600K+
4.2
Free/$6mo
Bit.aiResearch

AI document collaboration for research

300K+
4.1
Free/$8mo
ScilitResearch

AI-curated scientific article database

200K+
4.0
Free
DeepDyveResearch

Research paper rental with AI discovery

300K+
4.1
$40mo
KopernioResearch

One-click legal access to research papers

500K+
4.2
Free
UnpaywallResearch

Open access paper finder browser extension

1M+
4.4
Free
SurveySparrowResearch

AI conversational survey platform

200K+
4.2
Free/$19mo
MazeResearch

AI-powered user research at scale

150K+
4.4
Free/$25mo
GrainResearch

AI meeting recorder for user research

200K+
4.3
Free/$15mo
Otter.aiResearch

AI meeting transcription and summaries

3M+
4.4
Free/$10mo
FathomIC Pick
Research

AI note taker for research interviews

500K+
4.7
Free/$24mo
DescriptResearch

AI transcription and podcast analysis

1M+
4.5
Free/$24mo
HeydayResearch

AI memory assistant for web research

100K+
4.2
Free/$12mo
WaldoResearch

AI qualitative data analysis tool

30K+
4.1
$25mo
Julius AIResearch

AI data analysis and visualization

500K+
4.4
Free/$20mo
DataRobotResearch

Enterprise AI platform for data science

200K+
4.3
Custom
ATLAS.tiResearch

AI qualitative data analysis software

300K+
4.4
$10mo
NVivoResearch

Mixed methods research analysis with AI

500K+
4.3
$25mo
Tableau AIResearch

AI-powered data visualization analytics

2M+
4.5
$15mo
Power BI CopilotResearch

Microsoft AI data analytics assistant

5M+
4.4
$10mo
ThoughtSpotResearch

AI-powered search for business analytics

300K+
4.3
Custom
ClaimBusterResearch

AI fact-checking and claim detection

50K+
4.0
Free
Full Fact AIResearch

Automated fact-checking tools

80K+
4.1
Free
Originality.aiResearch

AI content and plagiarism detector

500K+
4.3
$15mo
Turnitin AIResearch

Academic AI writing detection tool

5M+
4.2
Institutional
GrammarlyResearch

AI writing assistant with citations check

30M+
4.5
Free/$12mo
WordtuneResearch

AI rewriting and summarization tool

2M+
4.3
Free/$10mo
DeepL WriteIC Pick
Research

AI writing and translation for research

5M+
4.6
Free/$9mo
SourcelyResearch

AI-powered academic source finder

200K+
4.1
Free/$10mo
ScrintalResearch

Visual AI mind map for research notes

50K+
4.2
Free/$12mo
AomniResearch

AI agent for business research tasks

50K+
4.2
Free/$25mo
GensparkResearch

AI search engine with Sparkpages

500K+
4.3
Free
iAsk.aiResearch

AI answer engine with academic sources

1M+
4.1
Free
Lumina ChatResearch

AI chat for scientific literature

100K+
4.2
Free/$8mo
SemaforResearch

AI-structured news analysis platform

300K+
4.1
Free
Nomic AtlasResearch

AI data visualization and exploration

80K+
4.3
Free tier
HeuristicaResearch

AI knowledge map generation tool

100K+
4.2
Free/$10mo
PetalResearch

AI PDF reader for research collaboration

200K+
4.1
Free/$10mo
ContentScopeResearch

AI-powered research and analysis platform

200K+
4.2
$29mo+
Draft NovaResearch

Automated literature review and discovery

5K+
4.4
$25mo+
DeepCrewResearch

AI data extraction and insights engine

15K+
4.5
Free
MeetFlowResearch

Smart document analysis and summarization

100K+
4.4
Free/$15mo
Voice TurboResearch

AI-driven competitive intelligence tool

150K+
4.2
$39mo+
Audio DataResearch

Research automation and knowledge management

5K+
4.2
Free/$15mo
ClearStackResearch

AI citation and reference management

20K+
3.9
Free/$12mo
ChartStackResearch

Automated survey analysis with AI insights

30K+
3.9
Custom
GraphNestResearch

AI-powered market research platform

50K+
3.8
$9mo+
ApexBuildResearch

Smart data visualization and exploration

20K+
4.3
Free/$12mo
SlideDeckResearch

AI academic paper discovery engine

10K+
4.6
Free/$20mo
DataShiftResearch

Automated fact-checking and verification

200K+
3.8
$49mo+
NextCreate.ioResearch

AI-powered patent search and analysis

50K+
4.4
$49mo+
BoldAssistResearch

Research collaboration with AI assistance

20K+
4.2
Free/$10mo
SearchWireResearch

AI trend detection and monitoring tool

15K+
4.2
Free/$25mo
PrimeDockResearch

AI-powered research and analysis platform

30K+
4.3
$29mo+
VisionPadResearch

Automated literature review and discovery

10K+
4.5
Free
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The AI Index5000+ AI ToolsCurated by The SignalUpdated WeeklyFree to Browse Top 150
The AI Index5000+ AI ToolsCurated by The SignalUpdated WeeklyFree to Browse Top 150
The AI Index5000+ AI ToolsCurated by The SignalUpdated WeeklyFree to Browse Top 150
The AI Index5000+ AI ToolsCurated by The SignalUpdated WeeklyFree to Browse Top 150