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Plans and credits

For individuals and small teams. One account, one wallet.

A key is access, credits are usage

An API key determines whether you get in. Credits pay for usage: 1 credit = € 0.01. A key is not a model token; you do not buy a model, you buy usage. Your balance always lives in one place: your account.

Four ways to buy

Separate credits

LIVE

A one-off top-up, no subscription. It stays until you use it.

  • 1,000 credits — € 10
  • 5,500 credits — € 50
  • 12,000 credits — € 100
  • 70,000 credits — € 500
Go to your balance

Monthly plan

LIVE

Five plans, currently as a one-off payment for the first month. Automatic renewal does not exist yet.

  • Free — free, no API key
  • Basis € 10 — 1,200 credits, 1 key
  • Plus € 20 — 2,600 credits, 2 keys
  • Pro € 45 — 6,300 credits, 4 keys
  • Max € 75 — 11,250 credits, 5 keys
See the plans

Annual plan

PREVIEW

Not priced or legally approved yet. There is deliberately no price and no order button: that would be a promise we cannot keep.

  • Direction: pay annually in advance
  • Credits granted monthly
  • Price and discount: awaiting the owner's approval

Plan + separate credits

PREVIEW

One wallet: your plan credits and your purchased credits sit together, not in two invisible balances.

  • Already possible today: buy a plan and top up credits
  • Automatic combined billing: not available yet
  • No double balances, one total

The five monthly plans

Price and quota as they currently stand in the catalogue. Payment goes through Mollie. After payment the first month is activated; after that you renew yourself.

Free

LIVE
Free
  • Chat with the Stay4S models
  • AI tools: translate, summarise, code, email, content, search
  • 1,000 credits one-off (€ 10 value)
  • No API key
Start for free

Basis

LIVE
€ 10.00/month
  • Everything in Free
  • 1,200 credits per month (€ 12 value)
  • 1 API key
  • Access to the OpenAI-compatible API

Plus

LIVE
€ 20.00/month
  • Everything in Basis
  • 2,600 credits per month (€ 26 value)
  • 2 API keys
  • Suitable for daily use of the AI tools

Pro

LIVE
€ 45.00/month
  • Everything in Plus
  • 6,300 credits per month (€ 63 value)
  • 4 API keys
  • For your own scripts and small projects

Max

LIVE
€ 75.00/month
  • Everything in Pro
  • 11,250 credits per month (€ 112.50 value)
  • 5 API keys (the maximum per account)
  • For intensive use and multiple projects

Comparison

PlanPrice CreditsAPI keys Payment
Free Free 1,000 0 one-off
Basis € 10.00 1,200 1 one-off payment
Plus € 20.00 2,600 2 one-off payment
Pro € 45.00 6,300 4 one-off payment
Max € 75.00 11,250 5 one-off payment
What is not arranged yet: automatic renewal, an annual rate, refund rules and a contractual right to rollover. Until those are built and approved, this page does not promise them.

Models: origin

Stay4S provides the API key and the handling. Models that run locally are therefore not an “own base model”: where a model comes from another maker or provider, that is stated in /prijzen and in /api/v1/models.

Terms: API terms (draft) · general terms · status · API docs