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2 AUG 2026 · Gary Marcus

OpenAI's new model Astra has solved 10 major open problems in mathematics, quantum complexity, and theoretical computer science, but its implications are being vastly oversold due to a common fallacy known as the fallacy of composition, which assumes that success in one domain guarantees success in all domains. AI summary

2 AUG 2026 · Simon Willison

The June edition of my sponsors-only monthly newsletter is out. If you are a sponsor (or if you start a sponsorship now) you can access it here . This month: Accidental cyberattacks by OpenAl and Anthropic models under test GPT-5.6 Sol, Ter…

1 AUG 2026 · Simon Willison

Ten advances in mathematics and theoretical computer science A few days ago it was Anthropic discovering cryptographic weaknesses with Claude using Mythos Preview, spending $100,000 on tokens and with prompts that included "again we are not…

31 JUL 2026 · Zvi Mowshowitz

The Frontier Act, a proposed federal regulation, aims to establish public safety frameworks, model reports, and incident reporting for AI models, but its binding nature and catastrophic-risk reduction requirements are unclear. The bill's author, Rep. Trahan, has stated that it does not impose restrictions on open models, but critics argue that this claim is misleading. AI summary

30 JUL 2026 · Swyx

Researchers and developers are revisiting ontologies, a concept that dates back to Aristotle, to create logical boundaries for probabilistic agents in AI systems, effectively keeping them "on guardrails." This is particularly useful for agentic systems that require deterministic behavior, such as those enabled by Neo4j's graph database systems. Established ontologies like Schema.org and OWL can be leveraged to augment existing large language models (LLMs) and provide a structured framework for probabilistic reasoning. AI summary

29 JUL 2026 · Swyx

The AIE NYC event is now open, focusing on the theme of AI in Finance, with various subsectors of financial services adopting AI. Key speakers include OpenAI, Anthropic, and FactSet, discussing topics such as AI skills ownership, simulations, and verifiable AI. The event also covers the security fallout from OpenAI's rogue-agent incident and the debate around model safety and governance. AI summary

29 JUL 2026 · Simon Willison

AI Worming through Word Neat new prompt injection variant by Håkon Måløy, who found a way to upgrade prompt injection attacks against Microsoft Word to full self-replicating worms: An attacker places hidden instructions in a document that i…

29 JUL 2026 · Swyx

A coalition of top AI companies, including OpenAI, Anthropic, and Meta, has signed a letter urging the US government to develop technical and governance tools to deliberately pace the development of autonomous AI. This comes as Hugging Face released a detailed report on a machine-speed offensive cyberattack, the first of its kind, which utilized open models to execute 17,600 actions over 2-4 days. AI summary

29 JUL 2026 · Simon Willison

TIL: Adding a custom MCP server to Claude and ChatGPT Connecting a custom MCP server to Claude and ChatGPT's standard chat interfaces is possible, but can take quite a few steps. Tags: ai , generative-ai , chatgpt , <a href="https://s

28 JUL 2026 · Gary Marcus

Several high-profile CEOs, including Sam Altman, Demis Hassabis, Elon Musk, and Jensen Huang, have claimed to have reached the technological Singularity, a hypothetical point where artificial intelligence surpasses human intelligence. However, none of them have actually defined what they mean by the term, and most of their statements appear to be exaggerated or based on previous claims. AI summary