Notes
A dated record of a real task, what it cost in USD, and which model did which part.
These notes record a real task, the USD it cost, and which model did which part. They are not a benchmark table, and they are not a ranking of vendors.
Each note says how many tasks were actually run. One task is not a statistic, and three tasks are still three tasks.
Every amount carries the day it was recorded. Published rates move. The card checked for today is on LLM Pricing.
gemini-3.7-flash-high vs sonnet-5-medium
Three rounds, one task each, on one frozen contract: blind-test scores, Opus review defects, and the 2026-08-14 USD each side spent.