April 9 (Reuters) - xAI filed a lawsuit on Thursday seeking to block Colorado from enforcing a new law regulating artificial intelligence systems, escalating a fight over whether ​oversight should be handled by states or by Washington.

WASHINGTON, April 9 (Reuters) - Small defense industry artificial intelligence startups are suddenly fielding calls from generals, combatant commanders and deep-pocketed investors, after the souring relationship between the Pentagon and its ​once-favored AI vendor, Anthropic, reinforced the need to diversify and increase the number of AI providers for the military.

April 8 (Reuters) - OpenAI plans to reserve a portion of its shares from an initial public offering for individual investors, CFO Sarah Friar ​told CNBC on Wednesday, as the ChatGPT maker gears ‌up for a highly anticipated U.S. stock market listing. The AI startup is laying the groundwork for an IPO that could value it at up ​to $1 trillion and may file with securities regulators as ​soon as the second half of 2026, Reuters reported last ⁠year.