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You only pay from what you save
60 / 40 split — no hidden margin

LexiCo takes 40% of the savings the STONE engine delivers on your token consumption. You keep 60%. You never pay more than provider cost with no savings - meaning LexiCo only earns when you save.

Here is the formula

provider_cost = tokens_input_sent × pIn + tokens_output × pOut
gross_savings = max(0, tokens_input_saved × pIn)
savings_to_customer = gross_savings × 0.60
savings_to_lexico = gross_savings × 0.40
customer_charge = provider_cost + savings_to_lexico

Example: you would have paid $1.00 at the provider without STONE. With 80% savings it costs you $0.52 at LexiCo - $0.48 in pure savings.

Calculate your savings

80%
Provider cost$200.00
Gross savings$800.00
LexiCo share (40%)$320.00
Your invoice$520.00
Your net savings (60%)$480.00

Credits or BYOK - your choice

Credits (prepaid)

Buy credits in USD, usage is deducted from the balance. Ideal for low to medium spend, and you can test without linking a card to recurring billing.

  • Minimum purchase $5
  • $1 welcome bonus (max $0.25 per call)
  • 14-day refund on unused credits
  • Auto-topup: set trigger + amount
Start with credits

API (BYOK - bring your own key)

Use your own provider key (OpenAI, Anthropic etc.). LexiCo bills monthly in arrears for accumulated savings share. Best model for high usage and companies with existing API agreements.

  • Your provider cost goes directly to the provider
  • $10 welcome bonus (deducted first invoice ≥ $10)
  • AES-256-GCM encrypted key storage
  • No minimum purchase
Start with BYOK

Welcome bonus is deducted from your total cost

Credit: $1 distributed over usage (M1 cap $0.25 per call). API: $10 credit on first monthly invoice ≥ $10.