Latest / The AI Practitioner Brief
Anthropic's IPO, OpenAI's Proof, and Nvidia's Pricing — October 27, 2026
An eighty billion dollar loss, with a listing aiming as high as two trillion dollars. A three-decade-old math hypothesis broken by an unreleased model, verified in ten days. Same week, opposite bets. We go through Nvidia's floated two-thousand-dollar-a-year charge per chip, an open-weight model caught quietly trying to upload a file to a server in Beijing, and DoorDash's reported seventeen billion dollar run at Instacart.
Get full access to The AI Practitioner at aipractitioner.substack.com/subscribe
The skinny
The skinny isn't ready yet — notes appear once the transcript is processed.