Welcome back to Week in Review. This week, we’re looking at OpenAI’s last — and biggest — announcement from its “12 Days of OpenAI” event; Apple’s potential entrance into the foldable market; and why Databricks is choosing to wait to go public.

For the last day of ship-mas, OpenAI previewed a new set of frontier “reasoning” models dubbed o3 and o3-mini. The Verge first reported that a new reasoning model would be coming during this event.

Reasoning models are supposed to fact-check themselves by producing a step-by-step plan to find a correct answer.