How Exa is Building the Perfect Search Engine | Deep Dives with a16z

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Exa CEO Will Bryk argues agentic search will surpass Google by 2030, with 10,000-result retrieval and 20x lower costs

Exa cofounder and CEO Will Bryk says Google remains optimized for fast consumer answers, while AI agents need a fundamentally different search engine: complex semantic and keyword queries, controllable filters, comprehensive results, and outputs scaling from 10 to 10,000 documents. Exa began in 2021, launched its first engine in November 2022—two weeks before ChatGPT—and now serves more than 5,000 businesses. Bryk says retrieval lets smaller models perform like larger ones, cutting some customer costs by up to 20x, while Exa’s coding search helps Devin make fewer mistakes. He expects agentic search to exceed Google Ads in the 2030s, driven by millions of automated searches, though infrastructure, data access, and retrieval quality remain bottlenecks. Exa’s research applies pre-training, post-training, and reinforcement learning to search; tests found RL with Exa outperformed SERP while using fewer calls. Bryk also describes a culture built around passion, autonomy, and obsessive pursuit of perfect search.

章節

1. 0:00Exa Origin Story: From College Search Engine to a 2021 Mission
2. 2:35Beating Google With LLMs: Deep Queries, $10 Billion Optimization, and the 2022 Launch
3. 9:00Search Built For Agents: Complex Queries, Controls, and Complete Biotech Results
4. 12:11Search Built For Agents: 10,000 Results, Custom Latency, and Smaller Teams
5. 15:47Search Built For Agents: 99.9999% Reliability for Billion-Dollar Decisions
6. 19:03Search Built For Agents: Go-to-Market Intelligence, Polarization, and Flying-Car Communities
7. 22:30Search Built For Agents: Coding Agents, Devin, and the Trillion-Dollar Agentic Economy
8. 26:01Tokenpocalypse and Retrieval: Exa Claims 20x Lower Costs with Smaller Models
9. 29:21RL for Better Search: Exa Outperforms SERP with Fewer Calls
10. 32:23Benchmarks and Agentic TAM: Search Could Exceed Google Ads by 2030
11. 36:52Benchmarks and Agentic TAM: Infrastructure and Unrecorded Data Are Bottlenecks
12. 40:19Benchmarks and Agentic TAM: Elon-Inspired Leadership, the Exa Goat, and 10¹⁸
13. 44:20Culture Hiring and Wrap: Exa’s Fun-First Culture and Passion-Driven Hiring