System contract

How to read ComputeLlama

A public price index is trustworthy only when its assumptions and provenance survive inspection.

01

Evidence first

Every imported price or compatibility assertion points to an immutable snapshot, its retrieval metadata, and a SHA-256 digest. The original source remains the authority.

02

Claims are not observations

Provider documentation creates claims. Independent probes create observations. ComputeLlama never presents a published compatibility statement as if we verified it ourselves.

03

Freshness is explicit

Each source declares a freshness window. Prices remain in history after that window expires, but default discovery excludes stale evidence.

04

Normalized, not simplified

Token prices are normalized to exact decimal USD components. Conditional eligibility, tiers, qualifiers, and incomplete workload coverage remain visible instead of being silently flattened.

05

Cheapest for a workload

The default rank estimates 1 million input plus 1 million output tokens. Change the workload to change the decision; incomplete estimates sort after complete ones.