https://video.ut0pia.org/videos/watch/0beb90a8-0eea-4629-93ed-5dc1be960c31 OpenAI's Dev Day 2024 demo ran on an o1 preview model that could not run or check its own code, so Romain Huet had to cross his fingers live on stage. A year later, the same kind of demo ran a full camera and lighting rig, because the model could now test its own work. Alexander Embiricos and Huet use that jump to show how fast Codex is moving: new model releases went from every 15 months to about every 6 weeks. They walk through why Codex is built on the same responses API, open source harness, and AGENTS md file format that ships to every developer, plus new numbers on cost and speed: frontier level intelligence at $1 per million input tokens and $6 per million output tokens, and a model generating 750 tokens a second, fast enough to produce a real pull request in about 10 seconds. Speaker info: https://twitter.com/embirico, https://www.linkedin.com/in/embirico, https://twitter.com/romainhuet, https://www.linkedin.com/in/romainhuet, https://twitter.com/steipete, https://www.linkedin.com/in/steipete, Timestamps: 0:00 - Introduction 0:13 - The World's Fair analogy 1:10 - The role of AI engineers in the future of work 2:14 - Accelerating model development cycles 3:09 - Evolution of build-and-test model loops 4:03 - Scaling engineering capabilities through agents 5:30 - Defining the desired AI engineering product experience 7:59 - The design philosophy of the Codex app 9:44 - The open-source stack and building with API primitives 11:43 - Expanding the ecosystem with Apps Server and plugins 14:20 - Optimizing for "Value Maxing": Cost and Intelligence 15:48 - Achieving high-speed inference for real-time workflows 16:51 - Future outlook: Removing the local/cloud distinction 18:16 - Special guest introduction: Peter Steinberger 18:56 - Shifting from manual orchestration to managing agents 20:02 - Three key changes for scalable agent loops 21:19 - Redefining the bottleneck as human attention 22:08 - Workflow example: Automating open-source issue resolution Fri, 10 Jul 2026 15:05:20 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://video.ut0pia.org https://video.ut0pia.org/lazy-static/avatars/0287a09a-aae7-4840-9843-b416426e7046.webp https://video.ut0pia.org/videos/watch/0beb90a8-0eea-4629-93ed-5dc1be960c31 All rights reserved, unless otherwise specified in the terms specified at https://video.ut0pia.org/about and potential licenses granted by each content's rightholder.