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One-Minute Daily AI News 4/20/2026

  1. Amazon to invest up to another $25 billion in Anthropic as part of AI infrastructure deal.[1]
  2. OpenAI Scales Trusted Access for Cyber Defense With GPT-5.4-Cyber: a Fine-Tuned Model Built for Verified Security Defenders.[2]
  3. Simple Robots That Collectively Build and Excavate Are Inspired By Ants.[3]
  4. Created by Georgia Tech researchers, DraftMarks reveals how AI shapes the writing process and offers a new way to assess learning in the age of generative AI.[4]
  5. One-Minute Daily AI News is now 3 years old.[5]
Sources:

[1] https://www.cnbc.com/2026/04/20/amazon-invest-up-to-25-billion-in-anthropic-part-of-ai-infrastructure.html

[2] https://www.marktechpost.com/2026/04/20/openai-scales-trusted-access-for-cyber-defense-with-gpt-5-4-cyber-a-fine-tuned-model-built-for-verified-security-defenders/

[3] https://seas.harvard.edu/news/simple-robots-collectively-build-and-excavate-are-inspired-ants

[4] https://www.eurekalert.org/news-releases/1124983

[5] https://bushaicave.com/

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