3 articles on procurement.

Seat pricing broke when every request started costing the vendor money. A survey of what the market charges for now — agent compute, credits, per-action — and how to read a bill before you sign it.

Vendor architecture slides are unfalsifiable, and treating them as evidence is the most common mistake in AI procurement. What counts as evidence, and six questions for a vendor call.

Adoption is over at around 90% and proved little. The four positions in the market, what pricing reveals about cost structure, and buying advice for this quarter.