This Week in AI
Key Topics
- OpenAI Agents SDK - Sandbox execution for improved AI governance
- Grok 4.20 - xAI’s latest model shows strong performance, especially in medicine and healthcare
- Google Veo 3 - AI video creation tools now widely available
- Tesla Robotaxi - Now available in Dallas & Houston
- Sora App - Thailand becomes one of the first in Asia to get access
From X/Twitter
Stanford paid 35,000 people to quit Facebook and Instagram for 6 weeks
Depression dropped. Anxiety dropped. Happiness went up. Women under 25 on Instagram saw the biggest gains
That was 6 weeks. I’m
— @daviddorg on X (Apr 18, 2026 · 8:04 AM UTC)
NEWS: World Bank research shows every 10% increase in broadband penetration can raise GDP growth by 1.21% in countries like South Africa.
Yet South Africa is blocking Starlink with race-based ownersh
— @cb_doge on X (Apr 18, 2026 · 8:47 PM UTC)
grok4.20-beta1 is a much smaller model than opus but is #1 ranked in medicine and healthcare
4.3 and 4.4 will be much larger models, and likely will have a significant boost in performance on com
— @ArthurMacwaters on X (Apr 18, 2026 · 7:49 PM UTC)
NEWS: Grok hits an all-time high in monthly active users on the App Store. 🚀
• Highest MAU ever recorded • Strong acceleration into 2026
— @cb_doge on X (Apr 18, 2026 · 7:50 PM UTC)
Can’t wait 🤗🤗🤗
— @mayemusk on X (Apr 18, 2026 · 8:34 AM UTC)
Actually, AI/Robotics will mean everyone can have a penthouse if they want. The output of goods & services will be several orders of magnitude higher than today’s economy.
Read the Iain Banks Culture
— @elonmusk on X (Apr 16, 2026 · 4:57 PM UTC)
Try Tesla Robotaxi in Dallas & Houston!
— @elonmusk on X (Apr 18, 2026 · 6:06 PM UTC)