The day in tech.

Anthropic PBC launched Claude Fable 5.1 and Claude Mythos 5.1, its most capable large language models to date. The launch follows a $35 billion cloud deal with Nvidia-backed Lambda for a 350-megawatt Hut 8 Texas data center, plus a $45 billion Nscale agreement.

OpenAI confirmed its unreleased Astra model reached a critical cybersecurity threshold under its Preparedness Framework, the first model to do so. Astra outperformed GPT-5.6 Sol on ExploitBench, discovering two zero-day vulnerabilities, and will launch soon with limited access to advanced cyber features.

Tim Cook stepped down as Apple CEO on September 1, with John Ternus, former Senior Vice President of Hardware Engineering, taking over. Cook led Apple since 2011, succeeding Steve Jobs, and Ternus is credited with products like AirPods, the iPhone Air, and the MacBook Neo.

Apple now lets Mac App Store developers remove Intel support from universal apps requiring macOS 13 or later. Dropping Intel simplifies development and reduces download size. Intel Mac users keep the last compatible version. macOS Golden Gate is Apple silicon-only, and Rosetta 2 ends after it.

Samsung is expanding its Android 17-based One UI 9 beta to the Galaxy Z Fold 7, Z Flip 7, S25, S25+, S25 Ultra, and S25 FE. The opt-in beta is available through the Samsung Members app in India, Korea, the UK, and the US.

The iPhone 18 Pro and Pro Max will launch September 9 in sky blue, pure black, and burgundy, skipping silver. The burgundy shade replaces last year's Cosmic Orange as the hero color.

Dell Technologies shares rose 9% after fiscal Q2 revenue grew 58% to $46.97 billion, beating estimates. The company now forecasts $74 billion in AI-optimized server sales for the fiscal year, up 200%, and raised full-year guidance to $192 billion in revenue.

Anthropic released Claude Fable 5.1 and Mythos 5.1, the same model behind different safeguard layers. Cache reads drop 75% to $0.25 per million tokens. Fable 5.1 scores 52.6% on Terminal-Bench-Science 0.1, roughly double Fable 5's 24.7%.

AI is ending audit fee inflation, according to a new analysis. The technology is expected to curb rising costs in the auditing sector. This shift signals a major change for the industry's financial landscape.

AI groups are racing to limit bioweapon risks, with one expert warning that a single mistake could trigger catastrophic consequences. The effort focuses on preventing misuse of advanced models in biological weapon development.