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12:20EN
Matthew Berman· Jul 10, 2023Testing UltraLM 13B: A Small Model’s Strengths and Reasoning ErrorsMatthew Berman · Forward FutureA 2023 local test finds useful writing and simple coding alongside failures in games, arithmetic and logic.
7:37ENMatthew Berman· May 25, 2023Smol Developer: Generating a Small Python Project From a PromptMatthew Berman · Forward FutureMatthew Berman walks through a 2023 project generator, from a simple Ruby example to a multi-file ChatGPT API program.
32:48EN
Cognitive Revolution "How AI Changes Everything"· Feb 23, 2023PodcastA Hundred Million to Train, a Penny to InferHost Nathan LabenzIn a February 2023 roundtable, two founders argue on mic over whether AGI ends humanity — and who actually captures the value if it does not.
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Lenny's PodcastPodcastCodex Is Not Just a Coding Tool: OpenAI's Plan for an Agent That Behaves Like a TeammateHost Lenny RachitskyCodex product lead Alexander Embiricos explains the 20x growth, why every useful agent may need to write code, and why human review speed is the real bottleneck.
1:39:51ENLenny's PodcastPodcastAfter the Inflection Point: Simon Willison on Agentic Engineering, Dark Factories and the Coming AI Challenger DisasterHost Lenny RachitskyDjango co-creator Simon Willison explains what changed in November 2025, how he works with coding agents, and why prompt injection remains the field's biggest unsolved risk.
1:33:50ENLenny's PodcastPodcastEvals Are the New PRDs: Inside Anthropic's Research Product TeamHost Lenny RachitskyDianne Penn, Anthropic's head of product for research and Labs, explains how the company found its identity, how her team turns user feedback into evals, and why human judgment still matters.
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Unsupervised Learning: With Jacob EffronPodcastReplit's Amjad Masad on Building Your Own Model, Latency, and the Next Billion Software CreatorsHost Jacob EffronThe Replit founder explains why AI should be native to the product, why he trained a small in-house model, and why he thinks software engineering is about to split in two.
1:53:14ENCognitive Revolution "How AI Changes Everything"PodcastWorth Thousands, Priced at $20: Zvi Mowshowitz on OpenAI's Flurry, Gemini Bets, Deepfakes and a Compute CapHost Nathan LabenzZvi Mowshowitz and Nathan Labenz survey OpenAI's launch spree, AI pricing and bundling, data pollution, deepfakes, the reversal curse, calls to cap training compute, and Amazon's Anthropic deal.
1:04:25ENUnsupervised Learning: With Jacob EffronPodcastInside GitHub's Copilot Bet: Agents, Open Source, and Why the Developer Job EnduresHost Jacob EffronGitHub CEO Thomas explains how Copilot went from a research bet to 1.3 million developers, and what agents, fine-tuning and a multi-model world mean for the next five years of software.
50:03ENLenny's PodcastPodcastCopilot Is a Copilot, Not a Pilot: Inbal Shani on the Future of AI in Software DevelopmentHost Lenny RachitskyGitHub's chief product officer explains what AI changes for developers, what it does not replace, and how teams should adopt it.
1:38:45ENLenny's PodcastPodcastWhen Coding Stops Being the Bottleneck: Inside Anthropic's Claude Code and Cowork TeamsHost Lenny RachitskyFiona Fung, who leads the teams behind Claude Code and Cowork, describes how an engineering org that ships roughly eight times more code manages quality, hiring, metrics and culture.
1:36:57ENUnsupervised Learning: With Jacob EffronPodcastDo the Dumb Thing First: A CTO's Playbook for Building an AI Coding AssistantHost Jacob EffronSourcegraph CTO Beyang Liu on which AI coding features actually earn daily use, how new models get shipped and evaluated, and why retrieval is still a search problem.
1:27:45ENLenny's PodcastPodcastCoding Is Solved, Says the Creator of Claude Code: Boris Cherny on What Comes NextHost Lenny RachitskyBoris Cherny, head of Claude Code at Anthropic, on the tool's origin, the principle of latent demand, and how work changes when engineers stop writing code by hand.
1:07:48ENLenny's PodcastPodcastMost Productivity Metrics Are a Lie: Nicole Forsgren on Measuring Developer Experience in the AI EraHost Lenny RachitskyThe creator of DORA and SPACE explains why lines of code and old pipeline metrics fall short with AI, and how to start improving developer experience by listening, surveying and tying results to what leaders care about.
1:41:26ENCognitive Revolution "How AI Changes Everything"PodcastThe AI Scouting Report, Part 3: What AI Can Already Do, Who Will Win, and Why Nathan Labenz Wants Caution on ScalingHost Nathan LabenzNathan Labenz closes his AP-course tour of AI with capabilities, market moats, jobs, law, safety plans and a stance on what to do next.
1:25:34ENLenny's PodcastPodcastShipping in Days: How Claude Code's Head of Product Runs a Team at AI SpeedHost Lenny RachitskyCat Wu, Head of Product for Claude Code and Cowork at Anthropic, explains how the PM role, hiring, tooling and culture change when features go from idea to users in a week or less.
1:09:56ENLenny's PodcastPodcastWhen Anyone Can Build Anything, Taste Becomes the Product JobHost Lenny RachitskyCodex desktop lead Andrew Ambrosino on how AI has inverted product development, why roles are blurring but shouldn't vanish, and where Codex and ChatGPT are headed.
37:23ENLenny's PodcastPodcastFrom Chat to Always-On Agents: OpenAI's Tibo Sottiaux on Dots, Open Ecosystems and What Comes NextHost Lenny RachitskyThe head of ChatGPT and Codex, speaking hours after a DevDay launch of more than 20 products, explains the vision for a personal agent that works around the clock.
1:11:13ENLenny's PodcastPodcastAfter Code: Cursor's CEO on Logic Design, Custom Models and Why One Winner Will Take the MarketHost Lenny RachitskyMichael Truell explains how Cursor went from a mechanical-engineering pivot to a $300M ARR product, and where he thinks programming is heading.
1:06:22ENLenny's PodcastPodcastWhen AI Writes 90% of the Code: Anthropic's CPO on New Bottlenecks, Builders and MCPHost Lenny RachitskyMike Krieger on how product work changes inside Anthropic, why he shut down Artifact, and where AI founders can build without being squashed.
1:19:39ENLenny's PodcastPodcastEngineers Become Sorcerers: OpenAI's Sherwin Wu on the Next 12 to 24 MonthsHost Lenny RachitskyThe head of engineering for OpenAI's API and developer platform describes life with Codex, how management is changing, and why builders should aim for where the models are going.
54:52ENUnsupervised Learning: With Jacob EffronPodcastCoding Agents Are Breaking Containment: The 2026 AI Stack, the Coding Wars, and the Next FrontierHost Jacob EffronJacob Effron and Swyx map the state of AI engineering, from agent harnesses and infrastructure churn to coding-market economics, open models, dark factories, and world models.
1:14:06ENLenny's PodcastPodcastWindsurf's Bet: Build the IDE That Makes Today's IDE Look DumbHost Lenny RachitskyVarun Mohan explains how Windsurf pivoted from GPU infrastructure to an agentic code editor, why it forked VS Code, and how he thinks about models, hiring, enterprise sales, and the future of software work.
1:34:06ENLenny's PodcastPodcastRide the Models: Dan Shipper's Bets on Super-Agents, Codex, SaaS and the Human Jobs AI CreatesHost Lenny RachitskyEvery CEO Dan Shipper makes a dozen predictions for how work will look in a year, from company-wide Slack agents to why the AI job apocalypse isn't coming.Load moreShowing 24 of 162