How the prices are checked.

Every morning a robot opens the public pricing pages of 9 apps: Luma, Runway, Magnific, Pika, Krea, Higgsfield, Higgsfield API, Kling, Google. It visits each page once a day, only where the site’s robots.txt allows it, and never logs in, so it sees what anyone sees.

Claude copies. Claude Haiku reads each saved page and copies every video price on it, each with the exact words it came from.

Code checks and calculates. Plain code then makes sure those words really are on the page, with the same number in them, and that the number makes sense: a plan between $1 and $2,000 a month, a 10-second clip between $0.01 and $50. It does all the math. Claude never adds, divides or rounds anything.

A number that’s new, or different from the last one accepted, is kept only when a second model, Claude Sonnet, reads the same value from the same saved page. If it doesn’t agree, the number stays out.

Big jumps wait a day. A number that moves more than 30% is held until the next morning, and shown only if both readers see it again.

When a page can’t be read or a number doesn’t hold up, the last confirmed price stays, with the day it was last seen. A price not seen for 7 days is greyed out; after 30 days it’s removed. Every morning’s prices are kept, so each model’s page shows how its prices moved.

Most apps sell credits in monthly plans and charge them per second of video, or per clip. So a clip costs the credits it uses times what a credit costs on that plan: the plan’s price divided by its credits.

For example, the cheapest 10-second Kling 3.0 clip today: 9 credits a second × $0.006153 a credit (Ultra: $159.99 a month for 26,000 credits), times 10 seconds, is $0.55.

Krea shows how many videos a plan makes instead of credits, so its prices are estimates, marked “≈”. Some pages only give a price “from” their cheapest setting; those are marked “From”. Prices that need code, through an app’s API, are marked “Needs code”.

Prices are for monthly billing. Most apps are cheaper billed yearly, and sign-up offers aren’t counted: they aren’t on a public page, so they can’t be checked each morning.

Every model gets the same prompt and the same settings: 6 seconds, 720p, sound on, 16:9 (9:16 for the UGC ad). Each clip is made once, through Higgsfield’s API, and it’s the model’s first take. A bad take stays: it’s part of the comparison.

Every clip is labelled as AI-generated, with the model that made it.

aditra earns nothing from these prices yet: no ads, no affiliate links. If it adds affiliate links later, they will never change the order: the cheapest price always comes first.