Constaia vs Reducto
Reducto is one of the best-funded LLM document startups in the US and excels at long documents and complex tables. Constaia is a European API focused on validating specific documents.
Reducto
7,50 $ / 1.000 pág. (Classify) · 20 $ / 1.000 pág. (Extract)
- Classify at $7.50 per 1,000 pages and Extract at $20 per 1,000 pages.
- EU data residency endpoints only on the Growth plan, with custom pricing.
- Changed its pricing model on 1 September 2026.
- Classifies among the classes you configure.
Constaia
- Public per-document price in euros, EU included.
- A direct question: «is this a valid X?», no classes to configure.
- Deterministic Spanish rules: NIF/NIE letter, MRZ, IBAN, expiry, age.
- Zero retention by default.
When to choose each
For long PDFs, financial tables or RAG over thousands of pages, Reducto is the more complete option. For IDs, certificates and receipts that need a yes or no, Constaia is more direct and stays in the EU.
Public data checked in September 2026. If something is out of date, tell us and we will fix it.
And for the record…
Create your account, copy the test key and validate your first document in five minutes.