@ Spec-driven development
It's the limit of imperative -> declarative transition, basically being declarative entirely. Relatedly my mind was recently blown by https://
dbreunig.com/2026/01/08/a-s
oftware-library-with-no-code.html
… , extreme and early but inspiring example.
@karpathy
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Spec-driven development and declarative programming paradigm shift
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Using AI to Process and Summarize EPUB Books Efficiently
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This repo shows a way that works well for me: https://
github.com/karpathy/reade
r3
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Basically I use epub (not pdf), the code then parses it into text. I usually go chapter by chapter, manually copy paste the chapter text around, get a summary, do a Q&A and read alongside. -
Reproducing Landmark AI Results Cheaply on Consumer Hardware
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Yeah, $10B is the difference in finding it first and ~5 years ago. 🙂 I just love reproducing landmark results for much cheaper, it's so fun! Reproducing LeCun 1989 was super fun too: https://
karpathy.github.io/2022/03/14/lec
un1989/
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What runs unoptimized on a consumer laptop in 1 minute was a state of -
LLM Optimization Through Compute-Controlled Model Family Design
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New post: nanochat miniseries v1 The correct way to think about LLMs is that you are not optimizing for a single specific model but for a family models controlled by a single dial (the compute you wish to spend) to achieve monotonically better results. This allows you to do
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Clarification on Opus 4.5 Assessment and Pod Commentary
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All of the following are true: I came out sounding too critical in that moment on the pod and accidentally created a misrepresenting sound bite, I was positively surprised by Opus 4.5 over the break, and my overall change of mind overall is less dramatic than naively implied.
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Reflecting on Past Code: A Developer’s Moment of Growth
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Hah I was just thinking about the same analogy. How I suddenly feel about all of the code I've written so far
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Tesla Customer Demonstrates Autonomous Drive Software in Production Release
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Haha yes. At one point I thought Tesla might do the drive, possibly with a slightly tuned version of the software etc. A customer deciding to do it with their own car and production release of the software is the right way, very happy it turned out this way.
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Tesla FSD V14.2 Completes First Fully Autonomous Coast-to-Coast Drive
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The first 100% autonomous coast-to-coast drive on Tesla FSD V14.2! 2 days 20 hours, 2732 miles, zero interventions. This one is special because the coast-to-coast drive was a major goal for the autopilot team from the start. A lot of hours were spent in marathon clip review
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Oracle and Claude: Excellence in AI Systems
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Excellent reading thank you. Love oracle and Clawd.
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Claude Automates Nanochat ML Experiments End-to-End
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Claude has been running my nanochat experiments since morning. It writes implementations, debugs them with toy examples, writes tests and makes them fail/pass, launches training runs, babysits them by tailing logs and pulling stats from wandb, keeps a running markdown file of