Catherine Perloff / The Information:
Sources: advertisers that bought ChatGPT's first ad campaigns say the process was low tech and that they haven't received much data showing if their ads worked  —  As OpenAI prepares to open up ad sales to more marketers next month, it is trying to address what some advertisers say was lacking in the initial ad sales offering.

Aaron Tilley / The Information:
Lux Optics CEO Ben Sandofsky sues his co-founder Sebastiaan de With, now a part of the design team at Apple, alleging improper use of funds and stolen IP  —  Last summer, Apple held talks to acquire Lux Optics, a tiny startup that makes Halide, one of the most popular and critically acclaimed camera apps in the App Store.

Richard Nieva / Forbes:
Vercel, which helps developers host web apps and AI agents, says its run-rate GAAP revenue hit $340M at the end of February, up 86% YoY, amid the AI coding boom  —  One of the most popular ways to view the Epstein Files, an interface called Jmail that mimics a Gmail inbox, is hosted on Guillermo Rauch's $9.3 billion unicorn Vercel.

Steven Levy / Wired:
Inside Palantir's recent developer conference, where it doubled down on a vision of AI built for battlefield advantage as its commercial business soars  —  As business soars, Palantir is doubling down on a vision of AI built for battlefield advantage—and attracting customers who agree.

Financial Times:
Sources: OpenAI aims to grow to about 8,000 employees by the end of 2026, from ~4,500 today, as it seeks to stop Anthropic's momentum with business customers  —  OpenAI plans to almost double its headcount by the end of the year as it accelerates a push to sell to businesses and gain ground …