Past briefings

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One worked check, four list prices, then three questions — before you trust what changed this week.

Worked check: Carbon’s list is $2/$10 — not on the public API yet; the 59 is DeepMind’s Index v5 report. Field card · prices and 3 checks

1. Measurement — which named test, on which date, scored by whom.
2. Bill — list input and output per million tokens on the vendor page.
3. Door — live API, lab claim, replay, or a downloadable file — keep them separate.

Models · Agents · Fine-tuning · All chapters