AI Research & Models
OpenAI expanded its Daybreak security initiative and launched GPT-5.6-Cyber, which discovered two previously unknown V8 vulnerabilities that could be chained to corrupt memory and escape Chrome's sandbox; Google has patched them as CVE-2026-15903. OpenAI says it's the first model to hit the 'High' cyber capability threshold under its Preparedness Framework.
why it mattersOpenAI is making hardware security keys mandatory for all Daybreak accounts by September 1, a sign it sees real offensive risk in a model it's still rolling out.
Starting August 14, Claude Code will run in auto mode by default for Pro, Max, and Team plans, proceeding without per-step approval unless an action is judged irreversible, destructive, or aimed outside the user's environment.
why it mattersAnthropic says a study of 1,053 paid testers found auto mode caught 89% of harmful actions versus 13.6% for manual human review, the case it's making for flipping the default.
GitHub shipped updates to Copilot Chat on github.com: minimizing an in-progress conversation to keep browsing, faster access to recent chats, and per-session and per-message token-spend indicators.
Meta released Muse Glimmer, a distilled, Apache 2.0-licensed 30-billion-parameter version of its Muse Spark model, built for multi-step agentic tasks, coding, and tool use entirely on-device, with or without a network connection.
why it mattersMeta's more capable Muse Spark stays closed; Zuckerberg framed Glimmer's release as a bet on distributing capable AI widely rather than centralizing it.
Michael Saylor's Strategy sold 1,690 bitcoin for about $108.6 million at an average price of $64,262, and separately raised $653.1 million selling 6.59 million MSTR shares, using the proceeds for STRC preferred-share buybacks and to grow its cash reserve to $4.65 billion. Holdings fell to 840,447 BTC.
US spot bitcoin and ether ETFs logged their best inflow week since April, drawing roughly $853.5 million over five sessions, with BlackRock's IBIT taking the bulk of it. BlackRock's digital assets head said bitcoin is showing signs of decoupling from equities.
Bitcoin traded above $65,000, its firmest level in about a week, as traders positioned ahead of upcoming US CPI data that could shape the Fed's next rate move.
Price is 1.20× the 200-week average. Weekly closes, USD, as of 28 October 2026 · data blockchain.com.