Today in AI — 2026-05-29

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

1. Strengthening societal resilience with Rosalind Biodefense

Source: OpenAI Blog · Signal: 75 ·

OpenAI launches Rosalind Biodefense, expanding trusted access to GPT-Rosalind for vetted developers and U.S. government partners advancing biodefense, public health, and pandemic preparedness through frontier AI.

2. How Braintrust turns customer requests into code with Codex

Source: OpenAI Blog · Signal: 69 ·

How Braintrust engineers use Codex with GPT-5.5 to run experiments and code faster.

3. Boston Children’s uses AI to unlock new diagnoses

Source: OpenAI Blog · Signal: 69 ·

Boston Children’s Hospital uses OpenAI technology to improve patient care, reduce operational burden, and help diagnose more than 40 rare disease cases.

4. [AINews] Anthropic raises $965B Series H, releases Opus 4.8 and Dynamic Workflows/ultracode

Source: Latent Space Podcast · Signal: 68 ·

Total Anthropic victory!

5. A shared playbook for trustworthy third party evaluations

Source: OpenAI Blog · Signal: 68 ·

OpenAI shares guidance on third-party AI evaluations, covering how to assess model capabilities, safeguards, and validity for frontier systems.

6. Anthropic's run-rate revenue hits $47 billion

Source: Simon Willison Blog · Signal: 65 ·

7. Take our I/O 2026 quiz, vibe coded in Google AI Studio.

Source: Google AI Blog · Signal: 60 ·

We used Google AI Studio to vibe code a quiz about our top I/O 2026 announcements.

8. 11 demos of Gemini Omni and Gemini 3.5 in action

Source: Google AI Blog · Signal: 60 ·

Watch 11 videos showing the capabilities of Gemini Omni and Gemini 3.5, announced at Google I/O 2026.

9. Check out real-life AI prototypes from the Futures Lab.

Source: Google AI Blog · Signal: 60 ·

University of Waterloo students develop AI prototypes like sign language tutors to reshape the future of education and work.

10. Eqbench: Emotional Intelligence Benchmarks for LLMs

Source: Hacker News - AI · Signal: 56 ·

Article URL: https://eqbench.com/ Comments URL: https://news.ycombinator.com/item?id=48329942 Points: 1 # Comments: 0

11. GPT 5.5 Bro [video]

Source: Hacker News - AI · Signal: 56 ·

Article URL: https://www.youtube.com/watch?v=v1zSDACAXK4 Comments URL: https://news.ycombinator.com/item?id=48329838 Points: 1 # Comments: 0

12. Knowa – Open-Source LLM Context Optimizer

Source: Hacker News - AI · Signal: 56 ·

Article URL: https://github.com/zzorphcreator/knowa Comments URL: https://news.ycombinator.com/item?id=48328512 Points: 1 # Comments: 0