Your daily briefing on what's happening in AI — from groundbreaking research to industry moves, curated from the world's most trusted sources. Here are the top stories for 2026-06-28.

1. Anthropic’s Mythos 5 is back
After a rollercoaster negotiation process with the Trump administration that dragged on for two weeks, Anthropic's Mythos 5 is finally back in action - at least, somewhat, for a select group of organizations, according to a letter from the government to Anthropic that was viewed by The Verge. Fable
Source: Anthropic’s Mythos 5 is back
2. Trump Administration Allows Anthropic to Release Mythos to Select US Organizations
After weeks of negotiations, the White House permitted Anthropic to grant access to its most advanced AI model to a select group of US companies and government agencies.
Source: Trump Administration Allows Anthropic to Release Mythos to Select US Organizations
3. Trump admin allows Anthropic to release Mythos AI model to some companies, government agencies
Anthropic disabled access to its Fable 5 and Mythos 5 models to comply with a government export control directive citing "national security authorities."
Source: Trump admin allows Anthropic to release Mythos AI model to some companies, government agencies
4. Trump Admin releases Anthropic Mythos to be used by more than 100 US companies, agencies
Over 100 companies and government agencies are reportedly authorized to use Mythos 5, including their non-American employees.
Source: Trump Admin releases Anthropic Mythos to be used by more than 100 US companies, agencies
5. Nvidia, Alphabet sit out megacap tech bounce as chip stocks sink
SoftBank Group plunged, leading a broad sell-off in Asian technology stocks amid mounting concerns over the rising cost of AI infrastructure.
Source: Nvidia, Alphabet sit out megacap tech bounce as chip stocks sink
6. Asian AI startups launch Mythos-like models as Anthropic’s export ban drags on
New models are launching in Asia that promise Mythos-like capabilities without fear of an export ban. U.S. AI labs may never recover this enormous market.
Source: Asian AI startups launch Mythos-like models as Anthropic’s export ban drags on
7. How GE Vernova builds the massive gas turbines powering the AI data center boom
GE Vernova turbines are powering Elon Musk's xAI Colossus 1 data center and Microsoft just bought seven to power its data center in Texas.
Source: How GE Vernova builds the massive gas turbines powering the AI data center boom
8. The fittest founder in the room got cancer. Here’s how he used AI to fight back.
When confronted with cancer, Connor Christou fed everything tied tied to his regime — blood results, scan data, wearable output, journal entries — into Claude.
Source: The fittest founder in the room got cancer. Here’s how he used AI to fight back.
9. Exphormer: Scaling transformers for graph-structured data
Posted by Ameya Velingker, Research Scientist, Google Research, and Balaji Venkatachalam, Software Engineer, Google Graphs , in which objects and their relations are represented as nodes (or vertices) and edges (or links) between pairs of nodes, are ubiquitous in computing and machine learning (ML).
Source: Exphormer: Scaling transformers for graph-structured data
10. Mixed-input matrix multiplication performance optimizations
Posted by Manish Gupta, Staff Software Engineer, Google Research AI-driven technologies are weaving themselves into the fabric of our daily routines, with the potential to enhance our access to knowledge and boost our overall productivity. The backbone of these applications lies in large language mo
Source: Mixed-input matrix multiplication performance optimizations
💬 What Do You Think?
Which of today's stories matters most for developers? Are any of these trends overhyped? Drop a comment below — I read and reply to every discussion.
📡 Today's sources: blog.research.google, cnbc.com, techcrunch.com, theverge.com, wired.com
AI Daily Digest is compiled daily from first-party AI company blogs, major news agencies, and technology press. Edited and curated by a human. Last updated: 2026-06-28.