Update: Market Chatter: Anthropic Grants EU Cybersecurity Agency Access to Mythos Model

11:43 AM EDT, 09/10/2026 (MT Newswires) -- (Updates with Anthropic's response in the fifth paragraph.) Amazon-backed (AMZN) Anthropic has granted the European Union Agency for Cybersecurity, or ENISA, access to its Mythos 5 AI model, months after first promising access, Bloomberg reported Thursday. European Commission spokesperson Thomas Regnier confirmed that ENISA has been granted access and is currently testing Mythos 5, which Anthropic first previewed in April and initially restricted to vetted institutions under Project Glasswing, according to Bloomberg. Anthropic proposed giving ENISA access in late May following discussions with the EU, but negotiations over the scope and terms of access continued for months, Bloomberg reported. However, both ENISA and the UK's AI Safety Institute have not received access to the latest Mythos 5.1 version, and are currently only limited to Mythos 5, a person familiar with the matter told Bloomberg. In a statement emailed to MT Newswires, Anthropic said, "We do not comment on individual access due to security and confidentiality but self-disclosure is typically allowed under Glasswing partner comms guidelines." (Market Chatter news is derived from conversations with market professionals globally. This information is believed to be from reliable sources but may include rumor and speculation. Accuracy is not guaranteed.) Price: 252.63, Change: +0.23, Percent Change: +0.09