About Keystone Brief

Keystone Brief is a daily newsletter and archive covering the AI world — model launches, research, developer tools, funding, and policy — summarized so you can catch up in about five minutes.

We built it because most AI coverage falls into one of two camps: breathless hype written for clicks, or dense papers written for specialists. We wanted something in between — technical enough to trust, short enough to actually finish.

Editorial principles

• Every story links to its original source. We summarize; we don't replace reporting.
• No clickbait. Headlines describe what happened, not how you should feel about it.
• Sponsored content is always labeled clearly as sponsored.
• When we get something wrong, we publish a visible correction rather than a silent edit.
• We cover a story because it's significant, not because the company pitched us.

A note on this site

The stories in the archive and in Market & AI Pulse summarize real reporting — mostly from TechCrunch and CNBC, plus the occasional research paper — and every one links to its original source. Reader counts, premium pricing, and sponsor slots shown elsewhere on the site are illustrative placeholders and not real figures.

Team

Keystone Brief is written and edited by a small team of former engineers and reporters who read far too much AI news so you don't have to.