https://costpergen.com/changes Every change to every AI generation price in the Cost Per Gen index. en-us https://costpergen.com/changes 2026-09-07-all-image-index-modality-launch Mon, 07 Sep 2026 12:00:00 GMT Image modality launched: 25 models, 10 comparisons, /image matrix, image calculator. Official rates for Black Forest Labs, OpenAI, Google, xAI, and Midjourney plans were read live from public pricing pages on 2026-09-07 and carry verified labels; aggregator rates are carried from the operator's cost audit (2026-03-23) as derived/estimated pending scrape. https://costpergen.com/changes 2026-08-28-all-video-index-seed-import Fri, 28 Aug 2026 12:00:00 GMT Initial dataset: 14 video models seeded from the operator's cost audit (2026-03-23) and launch research. Every price labeled derived or estimated; live re-verification pending. https://costpergen.com/changes 2026-08-28-all-voice-index-seed-import Fri, 28 Aug 2026 12:00:00 GMT Initial dataset: 10 voice/TTS models seeded. Price history begins at launch; the weekly diff pipeline appends every subsequent change here.