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  • KeepFlash ×
  • Perplexity ×

Comparador · Investigación y búsqueda

Precio inicial$7.99/mo · $10/mo
Nivel gratuitosí · sí
Planes documentados3 · 7
Plataformas1 · 2
Comparación de KeepFlash, Perplexity
Visitar el sitio web para KeepFlash (se abre en una pestaña nueva) Visitar el sitio web para Perplexity (se abre en una pestaña nueva)
Categoría Investigación y búsqueda Investigación y búsqueda
Casos de uso principales
  • Saving and searching articles, PDFs and videos for research projects
  • Building topic overviews from scattered notes with cited sources
  • Annotating and asking questions about PDFs
  • Keeping study notes linked with backlinks
  • Letting a coding agent read your saved research via MCP
  • Researching questions with cited sources
  • Tracking current events
  • Comparing products or options
  • Building search-grounded apps via API
Ideal para Researchers and students organizing reading, Writers collecting sources, Users who want a searchable personal knowledge base Researchers, Students, Journalists, Developers building search features
Plataformas Web Web, API
Modelo de precios Freemium Freemium
Precios

Free $0; Plus $7.99/month billed monthly or $6.58/month billed yearly; Pro $14.99/month billed monthly or $12.42/month billed yearly.

Revisado el Sep 29, 2026. Precios oficiales ↗

Free plan; Pro and Max paid plans; Enterprise for organizations. Viewed from outside the US, the pricing page showed Pro at $17/month and Max at $167/month (annual-billing equivalents). US monthly prices not confirmed — see official pricing.

Revisado el Sep 30, 2026. Precios oficiales ↗

Funciones clave
  • Chrome web clipper extension
  • PDF annotation and YouTube transcript capture
  • Keyword search (free) and semantic search (paid)
  • AI auto tagging and Auto Wiki Topic Pages
  • AI answers with citations to saved sources
  • Read-only MCP agent access on every plan
  • Answers with inline source citations
  • Real-time web search
  • Deep research reports
  • Choice of AI models from several labs on paid plans
  • Perplexity Computer for building documents and apps
  • Search, Agent and Embeddings APIs
Pros
  • Free plan with no card required
  • MCP agent access included on all plans
  • Paid plans list clear storage and credit limits
  • Public changelog with dated updates
  • Every answer links to its sources so claims can be checked
  • Free plan available to start
  • Paid plans offer models from multiple AI labs in one place
  • Developer APIs with published usage-based pricing
Limitaciones
  • Free plan capped at 150 notes, 2 spaces and 500 MB storage
  • AI usage consumes monthly KeepFlash credits (200 on Free)
  • Semantic search and PDF export require Plus or Pro
  • Capture extension confirmed only for Chrome
  • Answers can still misread or misattribute sources
  • Deep research and model choice need a paid plan
  • API is billed separately by tokens and requests
  • Promotional credit offers change often, so check current terms
Valoraciones
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Estado de revisión Listed

Verificado Oct 1, 2026

Listed

Verificado Sep 30, 2026