Fable 5 launches while Siri partners with Gemini | Now Shipping

In this week's AI briefing for product people, Mike Belsito unpacks Anthropic's Fable 5 launch, Codex's expansion to non developers, and Siri's partnership with Gemini.

In this episode, we cover:
(00:00) Introduction and episode preview
(01:05) Story one: OpenAI Codex goes mainstream — non-developers now its fastest-growing segment
(02:57) Six new role-specific Codex plugins and 110 automated skills across 62 applications
(04:40) What the Codex shift means for product teams building tools for non-technical users
(06:13) Story two: Anthropic releases Claude Fable 5, its most powerful public model
(07:44) The safety trapdoor — how Fable 5 routes high-risk queries to a fallback model
(08:47) Designing for a third product state: when the model hands off to a different model entirely
(10:01) Anthropic officials call for slowing frontier AI development in the same week as the launch
(11:24) Story three: Apple resets Siri at WWDC — a ground-up rebuild
(13:01) Google Gemini powers the most capable parts of the new Siri
(14:05) Why the "Siri can't compete with your app" moat is closing — and what to do about it
(15:11) Siri AI as an interface layer: threat or opportunity for your product?

Featured links:
OpenAI Codex: https://openai.com/codex
Anthropic Claude: https://www.anthropic.com/claude
Apple WWDC 2026: https://developer.apple.com/wwdc26
Google Gemini: https://deepmind.google/technologies/gemini