# Karpathy's Autonomous ML Lab, Sleeper Cells in LLMs, and Andrew Ng's Context Hub - 📚 The Tokenizer Edition #19

DevFeed: [Karpathy's Autonomous ML Lab, Sleeper Cells in LLMs, and Andrew Ng's Context Hub - 📚 The Tokenizer Edition #19](<https://devfeed.tech/articles/karpathy-s-autonomous-ml-lab-sleeper-cells-in-llms-and-andrew-ng-s-context-hub-the-tokenizer-edition-19-18340.md>)

Original publisher: [Read original article](<https://newsletter.artofsaience.com/p/karpathys-autonomous-ml-lab-sleeper>)

Author: Sairam Sundaresan

Published: 2026-03-11T12:03:21Z

Content type: article

Language: en

Sources: [Gradient Ascent](<https://devfeed.tech/sources/gradient-ascent.md>)

Topics: [Artificial Intelligence](<https://devfeed.tech/topics/ai.md>), [LLMs](<https://devfeed.tech/topics/llms.md>), [Security](<https://devfeed.tech/topics/security.md>), [AI research agents](<https://devfeed.tech/topics/ai-research-agents.md>), [Graphs](<https://devfeed.tech/topics/graphs.md>), [long-context](<https://devfeed.tech/topics/long-context.md>)

Tags: [ai](<https://devfeed.tech/tags/ai.md>), [ai-agents](<https://devfeed.tech/tags/ai-agents.md>), [ai-ml](<https://devfeed.tech/tags/ai-ml.md>), [benchmarks](<https://devfeed.tech/tags/benchmarks.md>), [long-context](<https://devfeed.tech/tags/long-context.md>), [reasoning](<https://devfeed.tech/tags/reasoning.md>), [security](<https://devfeed.tech/tags/security.md>)

## AI overview

The Tokenizer newsletter curates AI and machine learning resources covering autonomous ML experiments, reasoning graphs, temporal backdoors in tool-using LLMs, spatial reasoning benchmarks, long-context inference costs, open-weight models, and developer tools.

## Source excerpt

This week's most valuable AI resources