Hesperan

(Pricing)

Pricing

Two ways to pay: a plan with a monthly allowance that grows the longer you stay, or pay-as-you-go from a prepaid balance. Failed requests are never charged.

Draft pricing — not yet an offer.

(01) Plans

Stay, get more: +5 % usage every month you are subscribed, up to +50 %.

Free

Try it

€0forever

  • Enough to try every judgment type
  • 2 API keys · 7-day history
  • — Support: Docs

Starter

For side projects

€9/ month

  • Room for side projects and prototypes
  • — +5 % more every month you stay, up to +50 %
  • 5 API keys · 30-day history
  • — Support: Email

Pro

For products in production

€29/ month

  • 6× the usage of Starter
  • — +5 % more every month you stay, up to +50 %
  • 20 API keys · 90-day history
  • — Team of 3
  • — Support: Email within one working day

Business

For teams that depend on it

€99/ month

  • 30× the usage of Starter
  • — +5 % more every month you stay, up to +50 %
  • Unlimited API keys · 365-day history
  • — Team of 10
  • — Support: Priority, SLA, data processing agreement

(02) Pay as you go

For developers who want to know the exact price of every call. Top up a balance from €10 and pay per input token. Use it on its own, or as overflow when a plan runs out.

Top up a balance →
Input
€0.12
per million tokens
Output
Free
answers are probabilities, not text
Typical decision
€0.13
per 1,000 (≈ 1,100 tokens each)
Rate limit
300
requests / minute / key

(03) Enterprise

A dedicated model in the EU, or Hesperan inside your own infrastructure. Fixed volumes, a service level agreement and invoices on account.

Talk to us →

Questions

What is a decision?
One answered question. A request with three questions uses three. Each decision covers up to 4,000 tokens of state (about 3,000 words); longer states count once more per started block.
How much is included in a plan?
Free is enough to try every judgment type. Starter has room for side projects, Pro six times that, Business thirty times. Your exact allowance, what you have used and a projection for the month are always in the console.
What happens when the allowance is used up?
Requests stop with a clear error — no surprise costs. You can upgrade in one click, or switch on “continue on my balance” so further requests are paid pay-as-you-go.
How does the loyalty bonus work?
Every full month you stay subscribed adds 5 % to your allowance, up to +50 % after 10 months. It carries over when you change plans and resets only when you cancel.
Can I change or cancel any time?
Yes. Upgrades and downgrades are prorated; cancelling ends the plan at the end of the period.
Are failed requests charged?
Never. Invalid requests, rate limits and model errors cost nothing.
What about VAT?
Prices exclude VAT. It is calculated for your country and added at checkout.
Start free →How billing works