Pricing

You keep $4 of every $5 Prefex saves.

Free until Prefex has saved you $500 beyond your provider's own prompt caching. After that, Prefex costs 20% of what it saved you that month, read from the same meter your dashboard shows. A month it saves nothing costs nothing.

No seats · no markup on tokens · no setup fee · no card to start · cancel any time

Free
first $500 saved
Everything, on your machine.

Every Prefex layer, ReadyBase, the full dashboard and team mode for any number of people. No account and no card. A heads-up at $400 saved.

Pay from savings
20% of savings
After the first $500.

Each month you pay 20% of what Prefex saved beyond native caching and keep the other 80%. Your provider bills you directly as it does today; we never resell or mark up tokens. A team pays on the team's combined savings, with no per-seat fee.

Enterprise
talk to us
For organizations with a security review.

SSO, organization-wide routing and privacy policy, the signed audit chain, consolidated billing, and a committed rate instead of a share.

Worked examples

What a month costs, once the free $500 is used.

Prefex saved you, beyond cachingYou keepYou pay
$0$0$0
$50$40$10
$200$160$40
$1,000$800$200

For scale: on our own machine, over six weeks (Aug 31 to Oct 14, 2026), Prefex saved $2,859 beyond Anthropic's caching, 14% off the bill. Your workload will differ, and the dashboard shows yours, including when it is zero.

How savings are counted

We only charge for what your provider didn't already give you.

Prompt caching is your provider's discount, so it is never counted as ours. The meter is the dashboard's “Saved by Prefex” headline, and every line on it has a receipt.

CountedNot counted
Cache Prefex kept warm that would otherwise have gone cold and been re-writtenThe provider's ordinary prompt-cache discount
Side jobs sent to free or local models instead of your paid modelRequests Prefex only forwarded
Tool output compacted before it was sent and re-sentA “no optimization at all” comparison
Runaway turns stopped by loop guards and spend limitsAnything without a per-request receipt

Pricing questions

What happens when the free $500 runs out?

You get a heads-up at $400. At $500 you have 15 days to add billing. If you don't, Prefex hands Claude Code and Codex back to their direct connection, so your tools keep working without it. Your dashboard and history stay on your machine.

Is there a minimum or a seat fee?

No. A month Prefex saves nothing costs nothing, and a team pays on combined savings, not per person.

Do you see my prompts to measure savings?

No. Savings are computed on your machine from the provider's own token and billing fields. Your prompts, code and keys never reach our servers; the meter sends totals only.

I'm on a Claude or ChatGPT subscription, not the API.

Prefex still saves: the same work uses less of your plan's limits, which the dashboard shows as extra hours and as the API-equivalent value. Pricing for subscription plans is being set with our first users; the first $500 is free either way, so tell us how you use it before then.

Do you mark up tokens?

No. You keep your own provider account and keys, and the provider bills you directly. Prefex never sits in the billing path.

Can I cancel?

Any time. Prefex hands your tools back to their direct connection and you stop paying.