Today in AI — 2026-07-28

Top AI stories of the day, ranked by source authority + keyword signal. Auto-curated from 27 trusted sources.

1. Run the AI Studio deletion test to show the chat isn't deleted

Source: Hacker News - AI · Signal: 50 ·

Article URL: https://discuss.ai.google.dev/t/please-help-do-the-ai-studio-delete-test-so-we-can-prove-that-google-does-not-delete-the-chat/174376 Comments URL: https://news.ycombinator.com/item?id=49077737 Points: 1 # Comments: 0

2. OpenAI, Google, and Anthropic Absent from Nvidia-Led Open Secure AI Alliance

Source: Hacker News - AI · Signal: 50 ·

Article URL: https://www.tomshardware.com/tech-industry/artificial-intelligence/openai-google-and-anthropic-absent-from-nvidia-led-open-secure-ai-alliance-30-companies-join-security-alliance-after-openai-agent-breach Comments URL: https://news.ycombinator.com/item?id=49077447 Points: 1 # Comments: 0

3. Don't ask an LLM for a confidence score

Source: Hacker News - AI · Signal: 50 ·

Article URL: https://justinflick.com/2026/07/27/llm-confidence-scores.html Comments URL: https://news.ycombinator.com/item?id=49077443 Points: 1 # Comments: 0

4. Did an AI Really Hack Hugging Face? [video]

Source: Hacker News - AI · Signal: 50 ·

Article URL: https://www.youtube.com/watch?v=q2KCrmQz9WE Comments URL: https://news.ycombinator.com/item?id=49077382 Points: 1 # Comments: 0

5. Anthropic’s Dario Amodei responds: doesn’t oppose open-weight models, but fears Chinese AI

Source: TechCrunch AI · Signal: 48 ·

Anthropic founder and CEO Dario Amodei made his views clear about open-weight models and China's growing AI capabilities.