Pricing field notes
Short, practical explanations of token prices, prompt caching, and the assumptions behind an API cost estimate.
Normalized public GPT/Codex and Claude relay multipliers, route-level distributions, subscription utilization, and pricing implications.
· 10 min read
A corrected model for GPT/Codex and Claude upstream account cost, sustainable retail multipliers, margin thresholds, and supply risk.
· 12 min read
A source-backed guide to cacheable prefixes, GPT-5.6 breakpoints, retention, usage metrics, and the real cost of cache reads and writes.
· 9 min read
A practical guide to input, output, cached input, and cache-write prices—and the assumptions hiding inside a cost estimate.
· 6 min read
Find models, providers, pricing pages, and practical guides.