Related: shares the task Questions over your own documents, Research with citations
Research workspace for finding papers and discussing their PDFs.
Freemium
Use cases
- Understand unfamiliar passages while reading a paper.
- Organize an initial comparison of related studies.
Pricing: A free PDF tier and paid Premium options are advertised. The fetched pricing page did not expose current subscription amounts or exact credit allowances, so those figures remain unlisted.
Pricing ↗ · Sources
This record was last reviewed on 2026-11-03.
Related: shares the task Questions over your own documents, Research with citations
Academic research workspace linking reading, writing and source-aware citations.
Freemium
Use cases
- Read, write and cite research in one workspace
- Use AI autocomplete and editing alongside citation export
Pricing: Free includes ten daily autocompletes and limited uploads, edits and chat. Plus and Pro increase allowances; document export and AI usage differ by tier and billing cycle.
Sources
This record was last reviewed on 2026-11-03.
Related: shares the task Questions over your own documents, Research with citations
Academic writing assistant for language, citations and submission preparation.
Freemium
Use cases
- Check academic grammar and paraphrase research writing
- Review journal language and submission requirements
Pricing: Official support documents 200 monthly language suggestions and up to five daily uses of AI features on Free. Paid subscriptions expand usage; current subscription amounts were not normalized, and institutional agreements are separate.
Sources
This record was last reviewed on 2026-11-03.
Related: shares the task Questions over your own documents
File-based AI questions and summaries with traceable citations.
Freemium
Use cases
- Locate evidence across technical documents.
- Provide document-based answers through a website.
Pricing: The pricing page lists 60 free pages monthly. Expert is USD 9.99 per month with 500 included pages; additional pages cost USD 0.02 each. Team has different per-user pricing and permissions.
Pricing ↗ · Sources
This record was last reviewed on 2026-11-03.
Related: shares the task Research with citations
AI answer engine that combines web search with cited, conversational answers.
Freemium
Use cases
- Research questions needing sourced, current answers
- Comparing products, papers, and topics quickly
- Replacing traditional search for complex queries
Pricing: A free tier is available; Perplexity Pro adds more Deep Research queries, frontier model choice, and file limits.
Documentation ↗ · Sources
This record was last reviewed on 2026-10-09.
Related: shares the task Research with citations
Web search and research APIs for AI applications, after a pivot from consumer AI search to an API-first data layer.
Freemium
Use cases
- Developers adding grounded web search to AI apps
- Enterprise AI agents with sourced answers
- Research with cited results
Pricing: You.com offers free credits for new API keys and usage-based pricing for its search APIs; enterprise plans add custom QPS limits and zero data retention.
Pricing ↗ · Documentation ↗ · Sources
This record was last reviewed on 2026-10-10.
Related: shares the task Research with citations
Conversational AI search engine that answers questions and summarizes pages instead of showing ad-driven links.
Free
Use cases
- Getting quick factual answers without wading through ads
- Summarizing articles and web pages while browsing results
- Searching privately without tracking
Pricing: Andi is free to use, with no advertising.
Sources
This record was last reviewed on 2026-09-10.
Related: shares the task Questions over your own documents
Object-based knowledge workspace with an AI assistant and connected research context.
Freemium
Use cases
- Use an AI assistant with image, PDF and weblink analysis
- Keep tasks and research connected to notes
Pricing: Basic note-taking is free. Pro adds AI, smart queries, calendar links and analysis, with an in-app trial; a free note workspace does not imply unlimited AI usage.
Sources
This record was last reviewed on 2026-11-03.