The day in tech.

Samsung's Galaxy S27 Pro is tipped for a 5,200mAh battery and a triple rear camera with a 200MP primary and 50MP ultrawide, while the Galaxy S27 Ultra could pack a 5,700mAh cell using silicon-carbon technology.

OpenAI revealed Astra, its next major model family, after an internal version solved 10 math and theoretical computer science problems open for at least a decade. The company published machine-checkable Lean 4 proofs for all results, including a non-sofic group and disproof of Connes's rigidity conjecture.

Robinhood beat Q2 estimates with adjusted earnings of $0.62 a share and record revenue of $1.31 billion, though shares fell 4% in extended trading. Crypto revenue dropped 38% to $100 million, while prediction market revenue reached $156 million. The company launched Robinhood Chain and Agentic Trading AI tools.

A COLDCARD firmware RNG integration error enabled the theft of roughly 1,367 Bitcoin, worth about $88.6 million, from 4,585 addresses. Galaxy Research identified the waves, and Block traced the flaw to a deterministic Yasmarang fallback. Coinkite released fixed firmware versions for affected Mk2, Mk3, Mk4, Mk5, and Q devices.

Apple's MacBook Air faces a major shortage due to the memory chip crisis, with U.S. delivery estimates at 2-6 weeks. Prices rose $200 to $1,299 in June. Apple is sourcing memory from Chinese suppliers and steering customers toward the MacBook Pro.

James Dacombe, 25, tripled his AI chip startup's valuation to $3.3 billion. The funding round marks a major increase for the company, reflecting strong investor demand for advanced semiconductor technology.

Wall Street is learning to love blockchain, with financial institutions increasingly adopting the technology for trading, settlement, and record-keeping. The shift marks a major acceptance of distributed ledger technology in mainstream finance, moving beyond early skepticism toward practical applications.

Alibaba unveiled its most capable AI model to date, with a size not far behind Moonshot's. The new model represents a significant advancement in Alibaba's AI capabilities, positioning it competitively against Moonshot's offering.

AMEC plans to expand its high-end semiconductor equipment portfolio to more than 100 types within five years via in-house development and acquisitions. Founder Yin Zhiyao announced the goal at the company's 22nd anniversary event on Aug. 1. AMEC has developed 54 types, including 26 plasma etching tools and 24 thin-film processing tools.

Shanghai added 11 generative AI services to its registration list on Aug. 3, bringing the city's cumulative total to 211. The update is a regulatory milestone, not a model or app launch. The names and functions of the new services were not disclosed.