The price ledger
Notes on what LLM APIs cost, what changed, and how to read a per-token price without getting the arithmetic wrong.
What the October price moves actually were
A month of the ledger, sorted into the moves that mean something and the ones that are artefacts of a near-zero baseline.
Read →The context window is a pricing decision
Long context is not free, and it is not priced the way most people assume. Here is what a large window actually costs on a real workload.
Read →Why a 50% price cut can still cost you more
A cheaper input price is not the same as a cheaper bill. The ratio of input to output tokens decides which number actually matters for your workload.
Read →How a price gets into the ledger
Every model here passed a filter that rejects more rows than it keeps. This is what happens between a provider's pricing page and a row you can sort.
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