No Priors
No Priors

How do we go from search engines to answer engines? With Perplexity AI’s Aravind Srinivas and Denis Yarats

With advances in machine learning, the way we search for information online will never be the same. This week on the No Priors podcast, we dive into a startup that aims to be the most trustworthy place to search for information online. Perplexity.ai is a search engine that provides answers to questi

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Arvind Srinivas Guest

Topics Discussed

Episode Summary

Executive Summary: Perplexity founders Arvind Srinivas and Dennis Jaritz explain the company’s citation-first approach to search, arguing that the future is an answer engine, not a link list. They emphasize rapid iteration, hiring for curiosity and motivation over pedigree, strong factual grounding via citations, and user-driven refinement as LLMs improve. They also discuss monetization options, browser extensions, and how AI search may reshape publishing and search behavior.

Main Topics: Perplexity’s origin and thesis (Priority: 5/5): The founders describe how Perplexity emerged from many prototype ideas—text-to-SQL, notebook copilots, visual search—but always with search as the core thesis. Their goal became a conversational search product built around trusted answers. Speed, iteration, and small-team culture (Priority: 5/5): They attribute Perplexity’s pace to academic experimentation habits, strong engineers, and a small team structure that prioritizes rapid prototyping, trial periods, and very selective hiring. Hiring for motivation over pedigree (Priority: 4/5): Both founders argue that AI work does not require prior AI experience; instead, they look for curiosity, work ethic, and people who want to learn emerging technologies quickly. Citation-first factual accuracy (Priority: 5/5): Perplexity is positioned as a citation-first service, not a chatbot retrofitted with sources. The product only aims to say things it can cite, reflecting a philosophy of truth and accuracy over personality. RLHF, ranking, and quality improvement (Priority: 3/5): They discuss reinforcement learning from human feedback, contractor ratings, and ranking multiple model outputs as practical ways to improve answer quality before more advanced agent systems. Future of search and answer engines (Priority: 5/5): The founders predict a shift toward conversational answer engines, more follow-up questions, more direct actions, and fewer clicks to publisher sites, with search becoming more assistant-like and push-based over time. Monetization and platform strategy (Priority: 4/5): They outline several possible monetization paths: API access, prosumer browser extensions, ads at scale, subscriptions, and enterprise/internal-data use cases, while avoiding Google-style ad integration into core search.

Key Arguments: Perplexity’s core innovation is a citation-first experience: the system should not state anything it cannot cite, making trust central to the product. Startup advantage in AI search is speed; incumbents have more distribution and money, so rapid iteration is the main competitive edge. Great AI employees are often not traditional AI insiders; curiosity, motivation, and strong engineering ability matter more than prior model-training experience. Academia and startups differ: academia rewards hedging and multiple projects, while startups require focus on one direction and the discipline to course-correct fast. The future of search is an answer engine that gives direct answers, supports follow-ups, and increasingly helps users take actions. Publisher incentives should shift toward higher-quality content because citation-based systems reward relevance and usefulness rather than keyword gaming. Monetization will likely be multi-pronged and may include APIs, extensions, enterprise products, and eventually ads, but not necessarily a subscription-only model. LLM quality can improve through intermediate techniques like RLHF, rejection sampling, and ranking, even before full agentic systems mature.

Data Points: Company founding timeframe: Around August 2022 - Arvind describes Perplexity being created in the founding period around August 2022. Chrome extension users: Heading toward 100,000 users - They mention the Perplexity Chrome extension is rapidly growing and approaching this milestone. Summary length in early product: 50 words - Arvind notes the first version shipped with 3-4 links and 50-word summaries. Links shown in product: 3 to 4 links - Perplexity deliberately limits the number of cited links shown in the answer UI. Follow-up question usage: Increasing ever since chat UI launch - Arvind says the share of queries leading to at least one follow-up has been rising since releasing chat UI. Monetization horizon: 1 year - Arvind says push-based agent experiences can likely happen in about a year, not five years. Employee size preference: Very small team - Dennis says they intend to keep the company small to stay fast and make each hire highly consequential. Trial hiring duration: Some time - Dennis says they use trial periods where candidates work with the team before a final hire decision.

Pivotal Quotes: "it's more like a citation-first service" — Arvind Srinivas: He distinguishes Perplexity from a chatbot with added citations and frames it as a trust-centric search product. "the only real advantage that a startup has relative to incumbent is speed" — Arvind Srinivas: He explains why rapid iteration is treated as non-negotiable in the company culture. "the future of search looks like an answer engine" — Arvind Srinivas: He predicts the market will move from link lists to direct conversational answers and assistant-like behavior.

Implications: AI search is moving toward trusted, conversational answers that reduce clicks and increase follow-ups. Companies that win will likely combine speed, product focus, and strong trust signals while inventing new monetization models.

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