Wednesday, July 29, 2026 - 5 Minute AI News

AI leaders urge the US government to decelerate frontier development, Anthropic's Claude breaks encryption, Dario Amodei defends his open-source stance, Amazon pivots from Nova, and Cyera acquires Oasis Security.

1. AI Leaders Urge US Government to Decelerate Frontier AI Development — Employees from major labs and OpenAI's CEO are asking the government to intervene in AI development. This marks a notable shift as developers cite emerging security and safety fears.
2. Anthropic's Claude Model Discovers Cryptographic Vulnerabilities in 60 Hours — Anthropic’s Claude Mythos Preview successfully identified weaknesses in a post-quantum signature scheme. The discovery demonstrates that frontier models can challenge fundamental internet security standards.
3. Anthropic CEO Dario Amodei Clarifies Stance on Open-Weight AI Models — Dario Amodei insists he never called for an outright ban on open-source AI, despite warning of security risks. Critics argue he is primarily protecting Anthropic from cheaper competition.
4. Amazon Winds Down Nova Models to Focus on New Foundation Model — Amazon is placing its current Nova models into maintenance mode. The company is pivoting resources to a newly formed research group to develop a competitive frontier model.
5. Data Security Firm Cyera Acquires Oasis Security for One Billion Dollars — Cyera is acquiring Oasis Security to safeguard the deployment of AI agents across enterprise networks. The transaction highlights the consolidation and high valuations in the AI security sector.

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