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Tuesday, May 12, 2026
18 stories · 5 min read

★ Must ReadOpenAI just released its answer to Claude Mythos

OpenAI is launching Daybreak, an AI initiative focused on detecting and patching vulnerabilities before attackers find them. Daybreak uses the Codex Security AI agent that launched in March to create a threat model based on an organization's code and focus on possible attack paths, validate likely vulnerabilities, and then automate the detection of the higher risk ones. Its launch comes just over a month after rival Anthropic announced Claude Mythos, a security-focused AI model it claimed was too dangerous to publicly release and only shared privately as a part of its own initiative, dubbed Project Glasswing.

Live updates from Elon Musk and Sam Altman’s court battle over the future of OpenAI
The Verge AI

Sam Altman and Elon Musk are facing off in a high-stakes trial that could alter the future of OpenAI and its most well-known product, ChatGPT. In 2024, Musk filed a lawsuit accusing OpenAI of abandoning its founding mission of developing AI to benefit humanity and shifting focus to boosting profits instead. Elon Musk, his financial manager and Neuralink CEO, Jared Birchall, and OpenAI cofounder Greg Brockman have already testified before the jury.

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Misplaced panic over AI progress
Gary Marcus

Breaking down what METR’s latest “time horizon” graph does and does not show

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★ Must ReadImport AI 456: RSI and economic growth; radical optionality for AI regulation; and a neural computer

Import AI — Import AI 456: RSI and economic growth; radical optionality ...

Training an LLM in Swift, Part 1: Taking matrix mult from Gflop/s to Tflop/s

Trending on Hacker News with 222 points and 11 comments.

Why everybody wants to believe nonsense now.

We have always had kind of silly ideas that motivate us and give us dopamine hits, like in the 1970s, Bigfoot was a huge idea, and then people started realizing, when we got satellite imagery, that there are probably not ten-foot ape-like creatures walking around twenty miles from a town.

★ Must ReadActivation chapter, complete: 12 interactive lessons

Growing up in Taiwan, nothing can activate my neurons as much as a cup of boba tea.

SwiGLU

AI by Hand — SwiGLU

GLU

AI by Hand — GLU

Childhood And Education #17: Is Our Children Reading

Reading is the most fundamental thing in education.

OpenAI just released its answer to Claude Mythos
Stevie Bonifield, The Verge AI
interaction models.
Jay Peters, The Verge AI
prominent cyber crime threat actors
Stevie Bonifield, The Verge AI