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AI · 2024 · Solo Founder

SummarEase

AI PDF Summarizer
Next.jsLangChainOpenAINeonDBClerkFramer Motion

problem.

Long PDFs are unreadable on phones. Students and PMs want the gist + audio they can play in transit.

approach.

  • Chunk + summarize pipeline (map-reduce) via LangChain.
  • TTS streaming with OpenAI voices.
  • Subscription gating via Stripe + Clerk.

architecture.

Upload → chunk → map-reduce summarize (LangChain)
                              ↓
                    TTS stream  +  rich summary
                              ↓
                       NeonDB · Clerk · Stripe

outcome.

  • Active subscribers from launch week.

lessons.

  • TTS turned a 'read later' app into a 'listen now' app — retention doubled.
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