What is Iryx 1.0?
A decision model developed in Brazil by Iryx. It takes a context and closed questions (pick one option, yes or no, a level on a scale) and returns each answer with its confidence and the probability spectrum. It does not write text.
What is a decision model?
An AI that does not generate text: it answers closed questions about a context, with probabilities, in milliseconds. See what a decision model is.
How do you spell and say Iryx?
Iryx, with a Y: I, R, Y, X. Say "EYE-riks". It is sometimes misspelled Irix or Iriks.
Who makes Iryx?
Iryx (IRYX LTDA), a Brazilian artificial intelligence company based in Brasília, founded by Davi. It builds decision models.
How do I call the API?
A POST /v1/decide request with the context and 1 to 32 decisions. Each decision is a pick, a check or a scale. See the documentation.
Can I use it now?
The API is not open to the public yet. Access comes with a reservation: you create an account and find the API address and your key on the dashboard.
What counts as a decision?
Each answered question. A request with three decisions counts as three. Billing is per decision, never per token.
How much does it cost?
Plans start at R$ 110 per month (Brazilian reais) for 1,000,000 decisions. Pay-as-you-go credit costs R$ 0.120 per thousand decisions, with a minimum top-up of R$ 50. There is no free plan. See the plans.
Do you issue Brazilian invoices?
Yes. Billing is in Brazilian reais, with a nota fiscal.
Does it work in English?
The API accepts any text, but Iryx is trained in Portuguese, and the published accuracy numbers are in Portuguese. No number has been published for English yet: for now, use Iryx in Portuguese.
What happens to what I send?
The API is not open to the public yet. What is kept, for how long and why will be in the platform's Privacy Policy, published before the first customer. The model server reads the request, decides in memory and replies, and the content does not go into the logs. The access log keeps operational data (date, time, IP, key ID, route, status and duration) for 6 months, as Brazil's Marco Civil da Internet requires.
How did Iryx do in the 2026-10-19 round?
It had the round's highest accuracy on Iryx's own test and answer key, in Portuguese: 83.1% (187 of 225 decisions), among 11 decision models called from the same machine in Brasília, at the same time. On the questions whose answer could be calculated, it got it exactly right. Median of 310 ms per case, over the internet; 95% of cases finish within 3.2 s (2026-10-19). Each request carries up to 32 decisions, and each answer comes with its measured confidence. See the numbers.
Updated on Nov 6, 2026. Spotted a mistake? Write to contato@iryxia.com.