AI Price Index

Open, dated, first-party-sourced AI model API prices over time. Every price carries a verifiable source and the date it was last validated. CC BY 4.0.

License: CC BY 4.0
Last updated: 2026-06-12
Coverage: 9 models, 6 prices
Release: v2026.06.14-926e0f5

Endpoints

Machine-readable JSON, served as static files. The per-model series files are linked from the index.

/data/ai-price-index/index.json - the model list and pointers to each series file
/data/ai-price-index/current.json - the latest price per model and variation

Cite this data

CC BY 4.0 asks for attribution. A clear citation, including the validation date:

AI Price Index by RoninForge (https://roninforge.org/data/ai-price-index/), CC BY 4.0. Prices validated as of 2026-06-12.

Source and methodology: the ai-price-index repository. The provenance rule: every price links a first-party source and the date it was validated.

Current prices

USD per 1M tokens. Each price links its first-party source.

Model	Input	Output	Validated	Confidence	Source
claude-opus-4-20250514	$15	$75	2026-06-12	verified	page
claude-opus-4-5-20251101	$5	$25	2026-06-12	verified	page
claude-sonnet-4-5-20250929	$3	$15	2026-06-12	verified	page

Prefer to explore it visually? The interactive AI Price Index tool charts the full price history with filters, a point-in-time read-out, and chart export.