Mike Belsito unpacks three AI stories that matter to product builders this week: SpaceX's $60bn acquisition of Cursor and what the end of model neutrality means for your team's tooling; why Noam Shazeer joining OpenAI is a signal about where the next frontier of AI capability might come from; and how the Anthropic Fable 5 export control situation escalated all the way to the G7.

We discuss
— Why SpaceX's acquisition of Cursor is a product story, not just a finance story — and what the collapse of model neutrality means for developers inside someone else's platform
—Who Noam Shazeer is, and why his move to OpenAI signals that fundamental capability gains may still lie ahead
— The Fable 5 export control timeline — from launch to G7 summit — and what it means to build on promises that depend on a third party keeping theirs

Referenced
Cursor: https://cursor.com
Anthropic: https://www.anthropic.com
Attention is all you need (2017): https://arxiv.org/abs/1706.03762
Character.ai: https://character.ai

Mike Belsito on this week's episode of Now Shipping covers three stories shaping how product teams build on AI.

We cover:
— Why Microsoft built its own code generation model despite investing $13 billion in OpenAI
— What the retirement of GPT-4.5 on 27 June means for product teams — and why model deprecation is now a product management problem
— How a multi-agent safety bypass led the US government to give Anthropic 90 minutes to pull its most powerful model, and what that means for teams building on single AI providers

Chapters
(01:37) Microsoft launches MAI Code One Flash
(04:22) What this means for product teams
(06:26) GPT-4.5 retirement on 27 June
(09:45) How to manage model dependencies
(10:59) Anthropic's Fable 5 pulled by US government order
(13:50) AI vendor risk as a product architecture decision
(15:38) Closing thoughts

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.