Meta's brain-reading AI leaves letters behind

Meta introduced the second version of its Brain2Qwerty non-invasive brain-scanning system, a significant advancement in brain-computer interface technology. Unlike v1 which decoded single characters, v2 reads full words and their meanings, with accuracy approaching levels previously only achievable through surgical implants. Nine volunteers spent 10 hours in a brain scanner while typing, generating nearly 22,000 sentences of training data. The system uses two AI models—one to read raw brain signals and another to add semantic meaning—achieving 78% accuracy for the top-performing volunteer and 61% average word accuracy across participants. This represents a dramatic jump from the 8% accuracy of previous non-invasive competitors. Meta has open-sourced both v1 and v2 code, and research indicates accuracy scales with more data, suggesting the gap with surgical implants could narrow further through data scaling alone. The significance lies in removing the surgical barrier to mass adoption of brain-computer interfaces.

In parallel developments, Cursor launched an iOS app enabling developers to manage AI coding agents from mobile devices, shifting development supervision from desktop-bound work to on-the-go management via voice commands and slash prompts. Cognition released Devin Fusion, a dual-model coding system pairing expensive frontier models with cheaper sidekick agents to maintain quality at lower cost. OpenAI's Record & Replay tool allows users to automate repetitive computer tasks by recording their screen actions and converting them into reusable skills.

Anthropologic published its Economic Index report analyzing hourly Claude usage patterns across 9,700 users, revealing that AI usage follows distinct daily rhythms—news peaks in mornings, recipes cluster around dinner times, and sleep advice searches spike before dawn. The data shows personal Claude usage increases from roughly one-third on weekdays to nearly half on weekends, with users delegating more tasks to AI also reporting improved feelings about income, career stability, and purpose. Additionally, Apple's Vision Pro chief Paul Meade joined OpenAI's hardware unit, California's government adopted Claude at half price following state approval, and South Korea announced an $880 billion investment plan in chip factories, AI data centers, and robotics.