Meta Goes Closed-Source + $1.75T SpaceX IPO | AI News in 5

$1.75 trillion SpaceX IPO, Meta's closed-source Muse Spark, Anthropic's restricted Claude Mythos, OpenAI's four-day work week proposal, and Google's open-source Gemma 4. This week, the biggest companies in AI are making very different bets on power, access, and what happens next. AI News in 5 is your fast, no-fluff weekly AI news roundup for founders, operators, and executives who need to stay current. Every Tuesday, in 5 minutes. Stories Covered This Week: Meta launches Muse Spark, its first closed-source AI model under Alexandr Wang's $14B deal Anthropic restricts Claude Mythos to 50 partners via Project Glasswing over cybersecurity concerns OpenAI publishes 13-page policy calling for 32-hour work weeks and a "robot tax" SpaceX files for $1.75T IPO after $1.25T merger with xAI to build orbital data centers Google releases Gemma 4, open-source models running on a single laptop Timestamps: 00:00 Intro 00:25 Meta launches Muse Spark, goes closed-source 01:15 Anthropic holds back Claude Mythos over hacking risks 02:10 OpenAI proposes four-day work week and robot tax 03:05 SpaceX files for $1.75 trillion IPO 03:55 Google releases Gemma 4 open-source 04:45 Outro Partner Links Book Enterprise Training: https://www.upscaile.com/ Subscribe to our free newsletter: https://www.theaireport.ai/subscribe Free AI Tool Stack: https://community.theaireport.ai/checkout/the-ai-report-welcome-gift?coupon_code=WRTH Learn more about your ad choices. Visit megaphone.fm/adchoices