Methodology
Every figure has a source, date and visible limit.
The calculator ranks cost alone. It uses provider prices and fixed rules, with the assumptions shown beside each result.
01
Collect the provider price
A person or agent reads the provider's own pricing page. The record keeps the product, amount, unit, source URL, source type and date checked. The build validates every record before creating the site.
Inspect every price and source02
Calculate one monthly bill
Subscription seats and price overrides are added to API input, output, cache, batch and long-context usage. US dollars remain the source currency so every comparison uses one stable base.
03
Rank six fixed saving rules
The engine checks cheaper models, repeated-input caching, batch work, overlapping plans, light API use and annual billing. It shows the three largest eligible savings and states the assumption behind each one.
04
Keep the limits beside the result
Taxes, regional prices, negotiated rates, provider caps, search, storage and tool-call fees can change the amount paid. Reference exchange rates can also differ from card and bank settlement rates.
Price freshness
A 30-day checking window
A repository check lists prices older than 30 days. Price pages show the source and date for every row, so a visitor can verify the current provider terms before making a change.
Provider pages can change between checks. The source link is the final reference for a purchase decision.
Questions
How to read the estimate
Where do the prices come from?
Every price is read from the provider's own pricing page and stored with its source URL and checking date.
How are the three changes selected?
Six fixed rules calculate eligible savings, then the calculator ranks the three largest positive monthly savings.
How are currencies converted?
Source calculations stay in US dollars. Frankfurter reference rates convert the finished total for display and carry their own rate date.
What should I check before changing a plan?
Check taxes, regional terms, usage caps, context tiers, tool fees and any enterprise agreement that applies to your account.