Five minutes. What happened, and what to do about it. All stories from 10 September 2026
OpenAI opens its agent harness to everyone, at no extra fee
The managed harness behind Codex, now behind one API call.
The EU's cybersecurity agency now has Anthropic's Mythos 5 and is testing it
Silicon Republic· 10 SepThe EU's cybersecurity agency, ENISA, now has access to Anthropic's Mythos 5 and is testing it, though not the newer 5.1.
Our read: Worth knowing rather than acting on. Regulators getting hands-on access to frontier models is how the rules you will eventually work under get written, especially if you are in Ireland or sell into the EU.
- If you sell into the EU or handle EU customer data, keep a note of which models your tools use.
- Ask your AI vendors whether their models are covered by EU testing or approval.
Source: Silicon Republic. This is our short summary of their reporting. The paragraphs marked "Our read" and the things to do are SeedFoundry's opinion. The summary is drafted with AI tools. The picture is our own graphic. How we source and credit
These are short summaries of other people's reporting, with our own commentary. Each story names its source and links to the original. How we source and credit