With the WWDC keynote now delivered, the picture sharpened: Apple confirmed it is opening its devices to outside AI models, OpenAI took its first formal step toward the public markets, and the labs kept shipping new agentic tooling.
Apple makes Siri AI an open marketplace, powered by Gemini
At its WWDC 2026 keynote on June 8 — Tim Cook’s final as CEO — Apple unveiled a rebuilt “Siri AI” running on a custom Google Gemini model, alongside iOS 27 “Extensions,” a framework that lets users set Claude, ChatGPT, Gemini, or Grok as their default assistant across Apple Intelligence features. It is the first time third-party models can replace Siri system-wide. AI Weekly reports the Extensions marketplace will open to developers immediately, with a public beta in July.
OpenAI confidentially files for an IPO
OpenAI confirmed on June 8 that it has made a confidential filing with the U.S. SEC to pursue an eventual initial public offering, though it stressed the timing is undecided. The move comes exactly one week after rival Anthropic disclosed its own confidential filing. Reuters via Yahoo Finance notes the two labs are now racing to define who debuts on public markets first.
xAI expands Grok with persistent “Skills”
xAI rolled out Skills for Grok, letting the assistant retain custom expertise across conversations, with built-in tools for documents, decks, spreadsheets, and PDFs for Grok 4.3 users on web and mobile. The company also opened a beta of Grok Build, an interactive terminal client with headless scripting support. xAI release notes frame both as steps toward more autonomous, agentic workflows.
Pentagon tests alternatives to Claude in classified systems
Reporting around the June 8 news cycle indicates the Pentagon is evaluating OpenAI and Google models as potential replacements for Anthropic’s Claude in classified deployments. Build Fast with AI lists it among the day’s most-watched stories, underscoring how defense procurement is becoming a competitive battleground for frontier labs.
What to watch: with both OpenAI and Anthropic now in the IPO queue and Gemini 3.5 Pro and Claude Sonnet 4.8 expected before month’s end, June is shaping up to be a pivotal month for both AI products and AI markets.