Simple, Transparent
Pricing
No subscriptions. No monthly fees. You pay only for the savings STONE generates.
Pricing Formula
Provider Cost
Tokens × model price
-
Savings
Original cost − provider cost
+
Lexi Fee
40% of savings
=
Your Total Cost
Provider cost + Lexi fee
Price Calculator
See what you save on a single request.
10.0M tokens
$0.00
Provider Cost
-$0.00
Savings
$0.00
Lexi Fee
$0.00
Your Total Cost
0%
You Save
Tiers & Rate Limits
Rate limits increase automatically with your spend.
| Tier | Lifetime Spend | Req/min | API Keys |
|---|---|---|---|
| Starter | + | 10 | 3 |
| Growth | + | 30 | 5 |
| Scale | + | 60 | 10 |
| Enterprise | + | 120 | 25 |
Start Saving on AI Costs Today
Free credits included. No credit card required.