Index News Today — August 22, 2026

The world of AI and tech is moving at a breakneck pace, with innovation and investment flowing rapidly across various sectors. On one hand, advancements in AI are leading to groundbreaking research, such as Michael Polansky's development of an AI model trained on living skin, which could have significant implications for fields like healthcare and biotechnology. Meanwhile, AI-powered startups are continuing to attract massive investments, as seen in Rillet's $100M raise, which catapulted the AI accounting startup to unicorn status in just 48 hours.

As AI models become increasingly sophisticated, the focus is shifting to the infrastructure and tools that support them. Nvidia's recent demonstrations highlight the importance of the harness, or the underlying framework, in enabling AI models to reach their full potential. This emphasis on infrastructure is also reflected in the ongoing scrutiny of key players in the tech industry, such as Andreessen Horowitz, which is currently under investigation by the DOJ over its board seats. Amidst this flurry of activity, tech enthusiasts are gearing up for major events like TechCrunch Disrupt 2026, while consumers are on the lookout for deals like Best Buy's upcoming gift card sale. As the AI and tech landscapes continue to evolve, one thing is clear: the pace of change shows no signs of slowing down.

Today's signal:
• Michael Polansky is training an AI model on skin that’s still alive (techcrunch.com)
• How AI accounting startup Rillet raised $100M and became a unicorn in 48-hours (techcrunch.com)
• Nvidia just showed that the harness, not the AI model, is now the real hero (techcrunch.com)
• Last chance: Save up to $300 on your TechCrunch Disrupt 2026 ticket today (techcrunch.com)
• $100 Best Buy gift cards will be $60 at stores Saturday (theverge.com)
• Why is the DOJ investigating Andreessen Horowitz’s board seats? (techcrunch.com)