Latent Space: The AI Engineer Podcast

Beating Google at Search with Neural PageRank and $5M of H200s — with Will Bryk of Exa.ai

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Jan 10, 2025
Join Will Bryk, CEO of Exa.ai and former SpaceX engineer, as he dives into redefining search technology. Explore how the shift from link-based to semantic search is revolutionizing user experience. Will discusses the power of neural PageRank, hyper-personalized results, and a groundbreaking $5M AI infrastructure. He contrasts traditional search models with a future focused on understanding context and enhancing scalability. Additionally, he offers insights into startup culture and innovative workplace solutions—like nap pods!
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Interning at SpaceX

  • Will Bryk interned at SpaceX because of his admiration for Elon Musk.
  • A rule existed there: "interns cannot touch Elon," which influenced Bryk's actions.
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Exa AI's Vision

  • Exa AI's core mission has always been to create a perfect search engine.
  • Their initial release was a test, similar to OpenAI's ChatGPT, transitioning them from research to product.
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Link Prediction Model

  • Exa AI's initial foundation model predicted links based on surrounding text, similar to how transformers predict the next token.
  • This 'link prediction' model, now evolved, learned various ways people refer to content and its importance.
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