Skip to content

AI Search & Research, find it and understand it

AI search engines, academic papers & knowledge management

52
Tools listed
24
Free to use
20
Popular picks

Research and retrieval tools are really about information overload. This collection covers search engines, paper tools, and knowledge management. Two things matter: whether a conclusion traces back to a primary source, and whether it can handle non-English literature.

Tool list

52 tools
AI Search & Research 52 tools

Grok HotNew

AI assistant by xAI, real-time web, integrated with X/Twitter, witty style

ChatWeb AccessReasoning

Microsoft Copilot HotNew

Microsoft AI assistant with Bing search and M365 ecosystem

ChatSearchOffice

Skywork HotNew

AI assistant by Kunlun Tech, DeepResearch + search, popular Chinese AI

ChatSearchChinese

Quark AI HotNew

AI search and learning tool by Alibaba, top Chinese AI search traffic

SearchLearningChinese

Nami AI Search HotNew

Multi-agent AI search by 360, DeepSeek integrated, generates videos/reports/PPTs

SearchMulti-agentChinese

Perplexity Comet HotNew

AI-native browser by Perplexity with built-in AI assistant for emails, shopping, and scheduling

BrowserAI AssistantPerplexityPersonal Assistant

Metaso AI HotNew

Chinese AI all-in-one: search, writing, PPT and more

SearchWritingChinese

Fireflies.ai HotNew

AI meeting notes platform, auto-transcription, 60+ languages

Meeting NotesTranscriptionSearch

ima Copilot HotNew

Tencent AI knowledge work partner, fully open since 5/25, Copilot Q&A + knowledge plaza + skill marketplace

TencentKnowledge ManagementCopilotSkill

Dedao Brain HotNew

Luoji Siwei AI note tool upgraded from Get Notes on 5/29, with AI auto-linking knowledge and discovering blind spots

Luoji SiweiAI NotesKnowledge ManagementProactive AI

NotebookLM HotNew

AI research tool by Google, doc Q&A + audio overview, free

Doc Q&AAudioFree

Wolfram 15 (Mathematica 15) HotNew

Wolfram computational software, symbolic and numeric computation, visualization, and programming

ComputationMathSymbolicVisualization

Artificial Analysis HotNew

Independent third-party AI model benchmarking site; the Intelligence Index weights nine evaluations, and v4.2 raised the private held-out share to 40% to curb leaderboard gaming

Model BenchmarkingLeaderboardIndependentCost Comparison

GPTZero HotNew

Leading AI content detection, millions of users, accurate AI identification

Content DetectionAI DetectionAcademic

You.com New

AI search engine, multi-model, privacy-first smart search

SearchPrivacyMulti-model

Genspark New

Multi-agent AI search workspace, all-in-one AI assistant

SearchMulti-agentWorkspace

Phind New

Developer AI search for coding Q&A and debugging

SearchCodingDebugging

Scholarcy New

AI paper summary and knowledge extraction for complex literature

Paper SummaryExtractionReading

Research Rabbit New

AI paper discovery with citation visualization, free

DiscoveryRecommendFree

Txyz.ai New

AI research assistant for paper analysis, Q&A and literature

ResearchPaper InsightsQ&A

Xinliu New

AI search by Alibaba, smart search and content summarization

SearchAI Q&AAlibaba

Zhihu Zhida New

AI search by Zhihu, quality community content, in-depth answers

SearchZhihuDeep Q&A

Felo New

Free AI search: multilingual real-time Q&A and translation search

SearchMultilingualFree

Devv New

AI search for programmers, precise coding Q&A

SearchCodingDevelopers

WeatherNext Cyclones New

AI cyclone prediction model launched by Google DeepMind, providing high-precision forecasts of hurricane paths, intensity, and wind field structure, with an average early warning of 24 hours.

Weather ForecastingCyclone ModelAI PredictionHurricane Warning

WeatherNext 3 New

The most advanced global weather AI model released by Google DeepMind and Google Research on 2026/9/3: driven by real-time satellite data, updated hourly, 5 km resolution, 15-day forecasts; integrated from today into Search/Gemini/Maps/Maps Platform Weather API/Earth Engine

Google DeepMindWeather forecastingMeteorologyScientific AI

FanRuan Moss New

Business insight agent launched by FanRuan, based on natural language querying, attribution analysis, and operational diagnosis, helping enterprises identify growth opportunities from data.

Business IntelligenceBIData AnalysisBusiness Insights

Jiushuyun New

A SaaS BI data analysis platform under FanRuan, offering AI assistant natural language querying, AI diagnostics, and AI intelligent reports, serving over 5,000 enterprises.

BIData AnalysisData VisualizationReports

NVIDIA Kumo Tabular New

An open-source tabular foundation model released by NVIDIA on September 29, 2026. It can perform classification and regression predictions in a single forward inference pass, without the need for training, hyperparameter tuning, or feature engineering.

NVIDIAopen-source modeltabular datamachine learning

Microsoft Research Quine New

An AI biological research system released by Microsoft Research on September 29, 2026, connecting a biological world model with an interactive experimentation platform.

Microsoft ResearchAI for ScienceBiomedicineWorld Model

Ai2 AstaBrief 8B New

An open 8B scientific report generation model from Ai2, post-trained from Qwen3-8B, turning a research question and retrieved literature excerpts into a cited report in one pass, live in Asta as Fast mode

Open ModelScientific ReportsLiterature ReviewCitation Attribution

Microsoft ThinkingBox New

An agent evaluation sandbox from Microsoft and Hugging Face, running 507 stateful enterprise workflows 20 times each and grading the terminal database state and side effects instead of what the agent said

Agent EvaluationBenchmarkState GradingMCP

Arena New

This model evaluation platform began in 2023 as a UC Berkeley research project where users compare two anonymous model responses and vote, with the votes aggregated into a public ranking. On October 8, 2026 it closed a 200 million dollar Series B at a 3.1 billion dollar valuation co-led by Lightspeed Venture Partners and Khosla Ventures. The platform has accumulated 350 million sessions and 62 million votes across text, vision, code, search, image and video, drawing users from more than 150 countries, with Agent Arena producing 7 million sessions in under five months. The same day it released a preview of the Alignment Index, scoring 27 models across 90,000 real agent sessions on unauthorized action, false attribution and deceptive completion

Model EvaluationHuman VotingLeaderboardAgent Alignment

Agent Lightning New

Microsoft Research Asia open-sourced this rebuilt agentic reinforcement learning framework on October 7, 2026, introducing the Harnessed Agentic RL paradigm in which the same agent harness used at deployment takes part directly in training, so the agent never has to be reimplemented inside the training framework. It places an OpenAI compatible LLM proxy between the agent and the model, leaving existing harness code untouched and usually requiring nothing more than pointing the model endpoint at the proxy. The whole framework is about 3,500 lines, made of an API gateway, a rollout controller and a customized trainer built on verl. Agents run as standard Kubernetes jobs with no dependency on paid sandbox services, and Collocated Async RL lets rollout and model updates share one pool of GPUs for roughly twice the end-to-end speed of synchronous RL. An end-to-end run on SWE-smith, mini-SWE-agent and Qwen3.5-9B lifted Pass@1 on SWE-bench Verified from 41.8 percent to 56.4 percent using only about 6,000 training samples

Reinforcement LearningAgent TrainingHarnessed Agentic RLKubernetes

Google Deep Review New

Agentic review system released publicly by Google Research on 2026/10/14, already used across four flagship conferences on more than 16,000 manuscripts, now covering PDFs and plain text with two free reviews a week

Agentic ReviewTechnical Document VerificationPeer ReviewPaper Assistant

Google Earth AI Geospatial Reasoning agent New

Geospatial reasoning agent presented by Google Research on 2026/10/14, combining Earth foundation models with spatial tools and shipping GeoKTools and GeoExpertQueries as two new benchmarks

GeospatialRemote SensingEarth Foundation ModelsDisaster and Public Health

Exa New

A search API for AI agents, providing real-time web data retrieval with support for vertical categories such as full-text, news, companies, research, and finance

search APIagentsreal-time dataRAG

Gemini Hot

Multimodal AI model by Google, deeply integrated with Google ecosystem

ChatMultimodalSearch

Perplexity Hot

AI-powered search engine providing real-time answers with citations

SearchQ&ACitations

Consensus Hot

AI academic search engine, answers from scientific papers

Academic SearchPapersResearch

Metaso AI Search Hot

Ad-free AI search engine with direct answers and structured info

SearchChineseAd-free

ChatPDF Hot

AI tool for chatting with PDF documents, asking questions and extracting information from any PDF

PDFDocument Q&AAIInformation Extraction

Humata Hot

AI document analysis tool, chat with files, instant answers and summaries from long documents

Document AnalysisAIQ&ASummary

ERNIE Bot

Large language model by Baidu with powerful Chinese capabilities

ChatChineseSearch

Tencent Yuanbao

AI assistant by Tencent, integrated with WeChat ecosystem and search

ChatChineseSearch

SciSpace

AI paper reading assistant for understanding academic papers

Paper ReadingAnalysisExplanation

Elicit

AI research assistant automating literature review and analysis

Lit ReviewResearchAutomation

Connected Papers

Paper relationship visualization for discovering related papers

Paper GraphVisualizationDiscovery

Semantic Scholar

AI academic search platform for filtering relevant papers

Academic SearchSemanticPapers

AMiner

Academic platform by Tsinghua, scholar profiles and trend analysis

AcademicScholarsChinese

360 AI Search

Qihoo 360 AI search engine, real-time information retrieval with AI-generated answers

SearchAIQihoo 360Real-time

Casetext

AI legal research assistant CoCounsel, acquired by Thomson Reuters, for case search and legal analysis

Legal ResearchCase SearchAnalysis

No matching tools found. Try another keyword.