Aleph Alpha · API pricing

Kolibri API pricing

Kolibri 1, by Aleph Alpha, on one OpenAI-compatible API, billed per token from a prepaid balance — no subscription. From €0.0252 per 100k input tokens and €0.0924 per 100k output tokens, margin and VAT included. It runs on EU-sovereign infrastructure.

Models live
1
Input from
€0.0252
per 100k tokens
Output from
€0.0924
per 100k tokens
Largest context
256K
Kolibri 1

Kolibri API pricing per model

per 100k tokens · margin and VAT included · from our live catalog when this page is built

ModelInputOutputCached inContextMax outputJurisdiction
Kolibri 1
kolibri-1tools
€0.0252€0.0924€0.0126256K—EU sovereign

Input, output and cached input are the prices debited from your prepaid balance per 100,000 tokens, margin and VAT included. Context is the window as served on Frontière AI; max output is the provider's cap on max_tokens (— when it sets none we know of). Tool calling is measured with a real call per model.

Kolibri API cost calculator

Pick a model and a workload, or type your own token counts: the estimate uses the prices in the table above, margin and VAT included.

Example workload

Roughly 1,000 tokens ≈ 750 English words.

Per request

€0.0007

Per day

€0.7014

Per month

€21.04

30 days

A €10 top-up covers about 14,257 requests · Kolibri 1

Where the money goes

  • Input€11.34 · 54%
  • Output€9.70 · 46%

Estimate, margin and VAT included, from the prices on this page. You are billed on the tokens the provider reports for each call, debited from a prepaid balance — no subscription.

Call Kolibri models

The API is OpenAI-compatible: keep your SDK, change base_url and the key, and pass the model id. One key covers the whole catalog.

curl https://getfrontiereai.eu/api/v1/chat/completions \
  -H "Authorization: Bearer $FRONTIERE_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "kolibri-1",
    "messages": [{"role": "user", "content": "Bonjour"}]
  }'
API reference →

Frequently asked

How much does the Kolibri API cost?

Kolibri 1 costs €0.0252 per 100,000 input tokens and €0.0924 per 100,000 output tokens on Frontière AI — margin and VAT included, that is the amount debited from your prepaid balance. The calculator on this page turns it into a monthly cost for your workload.

Which Kolibri model has the largest context window?

Kolibri 1, with 256K tokens of context as served on Frontière AI.

Is the Kolibri API hosted in Europe on Frontière AI?

Yes: the live model is labeled EU sovereign — AKI.IO (Germany) for Kolibri 1. Your prompts transit through our gateway, hosted by Vercel in Paris (a US company), without being stored.

Is there a subscription or a minimum spend?

No subscription. You top up a prepaid balance from €10 and each call is debited at the per-token price. Calls are refused once the balance reaches zero; a call already running can take it slightly below — deducted from your next top-up.

Do I need to change my code to call Kolibri models?

No, if your code already uses an OpenAI SDK: point base_url at https://getfrontiereai.eu/api/v1, use a Frontière AI key and pass the model id, for example “kolibri-1”. Streaming and tool calling are relayed as-is.

How are cached input tokens billed?

Kolibri 1 has a discounted rate for prompt tokens the provider serves from its cache (€0.0126 per 100k tokens on Kolibri 1). The provider reports these tokens on each call and we bill them at that rate; on a model without a cache rate, every input token is billed at the input rate.

Other providers

Per-token prices for every publisher in our catalog

All model prices on one page →

Start calling Kolibri in minutes

Create an account, top up €10, change two lines of code.

Create an account