How is the new monthly bill calculated?

New bill = current monthly spend times (1 + price change percent / 100). A 20% increase multiplies your bill by 1.2; a 15% cut multiplies it by 0.85. The annual figure is the new monthly bill times twelve.

What is the hedging strategy field for?

It lets you compare the post-change cost against running the same workload on a cheaper alternative model. The tool shows the annual saving from switching entirely, so you can judge whether a migration is worth the engineering effort.

Why look at annual impact rather than monthly?

A small monthly increase compounds. A few hundred dollars a month is several thousand a year, which is often the figure that justifies an engineering project to migrate or optimise. Seeing both helps prioritise.

Does a price cut mean I should do nothing?

Not necessarily. A cut is a chance to bank the saving, expand usage, or move to a higher-quality model at the same budget. The calculator shows the freed-up budget so you can decide deliberately.

Is anything sent to a server?

No. All math runs in your browser. Nothing you enter is uploaded or stored.

LLM Price Change Impact Calculator

Know the real cost of a price change before reacting

Providers raise and cut LLM prices regularly. This calculator turns a percentage announcement into the figure that actually matters: the dollar change to your monthly and annual bill — and how much a cheaper hedge model would save if you switched.

How the impact is computed

A price change scales your bill directly:

new_monthly = current_monthly x (1 + pct_change / 100)
annual_delta = (new_monthly - current_monthly) x 12

A 25% increase on a $1,200/month bill is $300 more a month — $3,600 a year. That annual figure is usually what justifies (or rules out) an engineering response like migrating models or optimising prompts.

Tips for responding to price changes

React to the annual number, not the monthly one. Small monthly deltas compound into budgets worth acting on.
Keep a hedge model qualified. Having a cheaper alternative already tested means a price hike is a config change, not a project.
Bank or reinvest cuts deliberately. A price drop frees budget — decide whether to save it, grow usage, or upgrade quality, rather than letting it drift.