Latest Interviews
Showing 76–90 of 564 transcripts.
Clear all filters- Y Combinator51 min
The FDE Playbook for AI Startups with Bob McGrew
Originating at Palantir to solve intelligence agencies' workflow opacity, the Forward Deployed Engineer model embeds analysts and prototypers at customer sites to drive product discovery through high-touch, outcome-based engagements. This strategy has rapidly spread to the AI sector, where over 100 startups now hire FDEs to bridge the gap between generic large-scale models and specific enterprise needs while securing contracts tied to delivered value rather than usage. As OpenAI’s Bob McGrew observes, these on-site teams function as essential execution layers that extract practical utility from rapidly advancing technology, positioning human ingenuity and adaptive implementation as the primary drivers of market adoption.
- Y Combinator28 min
Michael Truell: Building Cursor At 23, Taking On GitHub Copilot & Advice To Engineering Students
Founded by MIT graduates led by Michael Truel, Cursor pivoted from failed ventures in CAD and encrypted messaging to launch a custom AI-driven code editor in late 2022 with an aggressive vision to automate the future of software development. Leveraging a strategic shift to API-based models and a product-led growth approach, the team scaled rapidly from one million users in 2023 to over 100 million in 2024, capturing approximately 80% of YC batches. This rapid adoption was driven by features emphasizing codebase awareness and speed, reinforcing the founders' long-term outlook that AI will transform the industry into a collaborative ecosystem where programming fundamentals remain critical for reviewing and editing AI-generated logic.
- Y Combinator13 min
OpenAI vs. Deepseek vs. Qwen: Comparing Open Source LLM Architectures
OpenAI, Alibaba Cloud, and DeepSeek have each launched significant open-weight language models featuring distinct Mixture of Experts architectures and advanced long-context capabilities. While OpenAI's GPT-OSS prioritizes inference efficiency on consumer hardware, Alibaba's Qwen 3 introduces flexible dense and sparse variants with dual reasoning modes, and DeepSeek's V3.1 achieves superior memory efficiency through Multi-Head Latent Attention. Despite differing engineering strategies for scaling and alignment, all three families demonstrate comparable performance benchmarks derived from trillions of tokens and complex post-training pipelines.
- Y Combinator45 min
How This 25-Year-Old Built A $675M Legal AI Startup (With No Legal Experience)
Gustaf Alströmer, Max Junestrand, Mark Mandelmann, Martin Splitt
Founded in 2024 by Max Giunestrand, Legora is an AI-powered workspace for legal professionals that recently secured an $80 million Series B funding round led by Iconic and General Catalyst. The company differentiates itself through a "software + service" hybrid model and a data-centric architecture that ensures GDPR compliance by hosting all European client data within the EU. With a flat organizational structure that scaled from ten to 100 employees in less than a year, Legora is aggressively expanding its operations to hubs in New York, London, and Stockholm to support law firms in navigating the AI transition.
- Y Combinator36 min
Anthropic Co-founder: Building Claude Code, Lessons From GPT-3 & LLM System Design
Tom Brown, Melanie Warrick, Mark Mandelbaum, Mark Mirchandani, Brian Dorsey, Priyanka Vergadia, Priyan Kavanagh, Leslie Kendrick, Francesc Campoy
Vivek Mirchandani, a founding engineer at OpenAI and Anthropic, pioneered the scaling laws strategy that established the link between compute investment and model intelligence before co-founding Anthropic to prioritize AI safety and alignment. Under his leadership, Anthropic shifted focus from early consumer prototypes to building robust training infrastructure, ultimately delivering the coding-dominant Claude 3.5 Sonnet model while navigating global bottlenecks in electricity and multi-vendor hardware supply chains. The organization's approach combines internal qualitative benchmarking with a multi-vendor hardware strategy to drive the largest infrastructure buildout in history, positioning the company at the center of the coming wave of AGI development.
- Y Combinator19 min
The Sales Playbook For Founders | Startup School
Early-stage B2B founders often stall in non-revenue design partnerships, so this guide outlines a four-stage framework to accelerate sales from initial discovery to signed Annual Recurring Revenue contracts. The strategy replaces vague, months-long pilots with narrow, paid trials that enforce financial commitment and specific ROI metrics, culminating in recurring contracts featuring automatic renewal clauses. By integrating operational tactics like immediate security certification and high-touch onboarding, founders can bypass traditional procurement bottlenecks and establish scalable revenue streams.
- Y Combinator46 min
The Finance Startup Bringing Agentic AI to Wall Street
Arnie Englander, Gustaf Alstromer, Chas Englander
Model ML, founded by siblings Arne and Chas, has transitioned its financial services agentic AI platform from a testing phase to rapid deployment, securing contracts with approximately 10% of the world's largest investment institutions. By replicating human cognitive access within familiar interfaces like Excel, the system automates complex data extraction and document creation for C-suite executives, shifting purchasing cycles from decade-long software licenses to annual multi-year agreements. With a global engineering presence and a strategy prioritizing high-trust in-person demos, the founders leverage their previous exits from Fat Llama and Fancy to drive a market where autonomous tasks increasingly replace traditional user interfaces.
- Y Combinator41 min
Scaling and the Road to Human-Level AI | Anthropic Co-founder Jared Kaplan
This event details how precise scaling laws governing pre-training and reinforcement learning enable predictable AI progress, with task horizons doubling every seven months to support long-term autonomous work. It highlights the launch of Claude 4, which introduces persistent memory and refined coding agents to facilitate complex, multi-day tasks while advocating for a strategic focus on "70% right" applications and greenfield domains like law and finance. The discussion concludes with a roadmap for shifting human-AI collaboration from supervisory oversight to full automation, driven by the expectation that incremental self-correction and hybrid training data will exponentially extend AI capabilities.
- Y Combinator44 min
Brand Design Tips From Linear Founder Karri Saarinen
Kari Saarinen outlines how early-stage startups should align their brand authenticity with their development stage, advising against mimicking mature companies like Stripe or Linear before product readiness. She critiques five specific landing pages for issues such as distracting visuals, vague messaging, and poor audience segmentation, recommending targeted copy and clearer calls to action to improve conversion. The analysis emphasizes that website design must evolve from abstract mystery for waitlists to detailed utility for enterprise sales, ensuring every visual element serves a functional purpose rather than adding noise.
- Y Combinator36 min
How Replit Went From $10M to $100M ARR In Just 9 Months
Replit has strategically pivoted to an AI-driven mission centered on its autonomous Replit Agent, a move supported by a dedicated infrastructure of NixOS and parallel agent sampling that achieved 45% monthly growth following a targeted workforce reduction. CEO Amjad Massad describes this transition as lowering barriers to software creation, enabling product managers and designers to deploy applications directly and shifting the primary bottleneck from engineering capacity to the volume of human ideas. As the technology matures beyond model coherence into complex computer use, the company anticipates a future where generalist knowledge and idea generation replace traditional coding syntax as the critical skills for creators.
- Y Combinator27 min
Nobel Laureate John Jumper: AI is Revolutionizing Scientific Discovery
Google DeepMind leader John Jumper presents AlphaFold 2, an AI system that revolutionizes structural biology by accurately predicting protein 3D structures to bridge the massive gap between sequenced genes and experimentally solved forms. The technology's superior accuracy, validated by a thirty-fold reduction in error rates at CASP14 and the release of over 200 million predictions, has accelerated drug discovery and enabled novel applications like re-engineered molecular syringes for targeted therapy. This shift allows experimentalists to advance the pace of biological research by 5 to 10 percent, transforming AI from a narrow computational tool into a fundamental amplifier for scientific discovery.
- Y Combinator43 min
Aravind Srinivas: Perplexity's Race to Build Agentic Search
Aravind Srinivas, Sami, Akshat, Ravin, Angela
Perplexity AI founder Aravind Srinivasan addresses the company's rapid infrastructure strain and recurring competitive skepticism while detailing the strategic development of "Comet," an AI-powered browser designed to function as a cognitive operating system for complex agentic tasks. Differentiating itself from incumbent tech giants bound by ad-revenue models, the 200-person team leverages AI-driven engineering workflows to iterate quickly, aiming to capture direct transaction revenue through subscriptions rather than competing on traditional search advertising. Srinivasan projects a future where Perplexity maintains market relevance by prioritizing speed and human oversight in distributed systems against inevitable large-scale replication attempts from major competitors.
- Y Combinator44 min
Andrew Ng: Building Faster with AI
AI Fund accelerates startup velocity by co-founding approximately one venture monthly through direct code writing and feature definition, leveraging agentic AI workflows to address complex tasks in sectors like healthcare and legal compliance. The organization emphasizes concrete product hypotheses and agile prototyping to shift engineering bottlenecks toward product management, thereby altering standard PM-to-engineer ratios to 0.5:1 while empowering non-engineering staff with coding literacy. Strategic guidance further stresses that rapid iteration and ethical filters outweigh speculative narratives, prioritizing application-layer revenue generation and open-source accessibility over fears of existential risk or regulatory gatekeeping.
- Y Combinator39 min
How to Spend Your 20s in the AI Era
The event critically examines how AI is collapsing traditional computer science career safety nets and redefining startup economics by shifting capital formation toward direct revenue generation rather than external validation. It argues that competitive advantage now relies on "forward-deployed engineering" and niche domain expertise, urging founders to build value through tangible utility rather than brand narratives or simulated success. Furthermore, the discussion outlines a preparation framework for entrepreneurs emphasizing frugality, co-founder synchronization, and the strategic use of proprietary data to secure moats in specialized markets before the potential obsolescence of human labor renders current wealth accumulation obsolete.
- Y Combinator35 min
François Chollet: How We Get To AGI
Recent analysis of the Abstraction Reasoning Corpus series reveals that while standard pre-training scaling fails at fluid intelligence, Test-Time Adaptation enables models to dynamically solve novel problems, though current systems still lag significantly behind human performance on the 2025 ARC-2 benchmark. To bridge this gap, the field is adopting the Kaleidoscope Hypothesis, which posits that future architectures must integrate continuous intuition with discrete programmatic reasoning to achieve true compositional generalization. This shift drives the development of endia-like meta-learners capable of synthesizing custom code and maintaining a dynamic library of abstractions, with the explicit goal of accelerating independent scientific discovery by early 2026.