The resignation letter of former Anthropic researcher Jacob Coxon went viral this week, but it isn’t the first such missive we’ve seen. It’s one in a long line of warnings sent from the people who work within the world’s most powerful tech companies.

One day after OpenAI released its powerful Astra model, the authors of the most important frontier AI safety laws released an open letter sounding the alarm. Read the full letter here.

In the wake of two alarming episodes of AI models going rogue, more than 1,300 employees from the world’s leading tech companies have signed an open letter asking government to regulate the pace and safety of artificial intelligence development.