P
WebsitePerplexity
Free plan
An answer engine with citations for research and fast fact-finding.
ResearchCited answersDeep research
Official plans
PricingStandard$0
Pro$20/mo
Max$200/mo
EnterprisePer seat
Use-case guide
AI Search Tools
Explore AI search products for cited answers, information retrieval, and deep research, with free access and public pricing tiers.
What to compare
- For fact-checking, confirm that answers link to accessible primary sources.
- For long reports, compare deep-research quotas, file support, and exports.
- Teams should also review data retention, shared workspaces, and seat pricing.
Verified products
6 products
C
WebsiteChatGPT
Free plan
A general AI assistant for questions, writing, file analysis, vision, and voice.
General Q&AWritingFile analysis
Official plans
PricingFree$0
Plus$20/mo
Pro$200/mo
BusinessPer seat
G
WebsiteGemini
Free plan
Google's multimodal assistant for search, writing, images, and Google apps.
Web answersMultimodal tasksGoogle apps
Official plans
PricingFree$0
Google AI Plus$4.99/mo
Google AI Pro$19.99/mo
Google AI Ultra$199.99/mo
K
WebsiteKimi
Free plan
A Chinese AI assistant for long documents, web research, summaries, and office tasks.
Long documentsWeb researchSummaries
Official plans
Pricing免费版免费额度
会员以应用内为准
E
WebsiteElicit
Free plan
An AI research assistant for paper discovery, evidence extraction, and reviews.
Paper searchEvidence extractionLiterature reviews
Official plans
PricingBasic$0
Plus$11/user/mo（年付）
Pro$39/user/mo（年付）
Scale$89/user/mo（年付）
N
WebsiteNotion AI
Free trial
AI writing, search, summaries, meeting notes, and knowledge Q&A inside Notion.
Knowledge Q&AWritingMeeting notes
Official plans
PricingFree有限试用
PlusPer seat
Business含更多 AI 功能
EnterpriseContact sales