01
Reads Spanish paperwork natively
Importes, fechas, CIF/NIF/NIE. Jeff normalizes Spanish paperwork natively, no custom scripts.
Meet Jeff.the auditor's AI agentthat shows its work.
Professionals don't trust today's AI tools because they are untraceable and hallucinate. Jeff is built different: he classifies, extracts, matches and reconciles thousands of financial documents without leaving the conversation, so you can focus on what really matters.
AI for audit teams, built in Spain
How Jeff works
01
Drop the documents
Drop the whole file set at once. Jeff splits, classifies and asks before assuming anything.
02
Extract with traces
Every value Jeff extracts keeps its origin: page, field and document. No number reaches the workbook without a trace back to the source.
03
Match, reconcile, deliver
Jeff pairs invoices to payments, flags discrepancies and writes the result into a live Excel workbook. Every cell carries its evidence.
Matching · Invoices ↔ Payments
InvoicePayment
62893746
4,18 €
62893746
4,18 €
62980958
22,99 €
62980958
22,99 €
0EBFE159
19,44 €
0EBFE159
18,90 €
63030050
46,97 €
63030050
46,97 €
Invoice
OpenAI
Invoice number 0EBFE159-0007
Date of issue May 23, 2025
Date due May 23, 2025
OpenAI, LLC
548 Market Street, PMB 97273
San Francisco, CA 94104
United States
EU OSS VAT EU372041333
Bill to
Cliente Auditado, S.L.
28001 Madrid, Spain
ES VAT ESB00000000
€19.44 EUR due May 23, 2025
DescriptionTaxAmount
ChatGPT PlusMay 23 – Jun 23, 20250%€19.44
Subtotal€19.44
Total€19.44
Amount due€19.44 EUR
Santander
Oficina Inst.
12-12-2025
TRANSFERENCIAS · ORDEN
ORDENANTEIMPORTEBENEF.
Cliente Auditado
IBAN ES•• ···· ··48 6439
Pago de remesa
− 18,90 €
Ord. 18,90 €
Contravalor 18,90 €
OpenAI, LLC
Entidad: Santander
Concepto
Factura: 0EBFE159-0007
Ref. 0049····WYVR05-12-2025
How Jeff works
01
Drop the documents
Drop the whole file set at once. Jeff splits, classifies and asks before assuming anything.
02
Extract with traces
Every value Jeff extracts keeps its origin: page, field and document. No number reaches the workbook without a trace back to the source.
03
Match, reconcile, deliver
Jeff pairs invoices to payments, flags discrepancies and writes the result into a live Excel workbook. Every cell carries its evidence.
Matching · Invoices ↔ Payments
InvoicePayment
62893746
4,18 €
62893746
4,18 €
62980958
22,99 €
62980958
22,99 €
0EBFE159
19,44 €
0EBFE159
18,90 €
63030050
46,97 €
63030050
46,97 €
Invoice
OpenAI
Invoice number 0EBFE159-0007
Date of issue May 23, 2025
Date due May 23, 2025
OpenAI, LLC
548 Market Street, PMB 97273
San Francisco, CA 94104
United States
EU OSS VAT EU372041333
Bill to
Cliente Auditado, S.L.
28001 Madrid, Spain
ES VAT ESB00000000
€19.44 EUR due May 23, 2025
DescriptionTaxAmount
ChatGPT PlusMay 23 – Jun 23, 20250%€19.44
Subtotal€19.44
Total€19.44
Amount due€19.44 EUR
Santander
Oficina Inst.
12-12-2025
TRANSFERENCIAS · ORDEN
ORDENANTEIMPORTEBENEF.
Cliente Auditado
IBAN ES•• ···· ··48 6439
Pago de remesa
− 18,90 €
Ord. 18,90 €
Contravalor 18,90 €
OpenAI, LLC
Entidad: Santander
Concepto
Factura: 0EBFE159-0007
Ref. 0049····WYVR05-12-2025
Every cell,an audit trail.
Jeff refuses to write a number it cannot attribute. Click any cell and see exactly where it came from.
| Invoice no. | Supplier | Amount | Match |
|---|---|---|---|
| 62893746 | AMIDATA SAU | 4,18 € | ✓ paid |
| 62980958 | AMIDATA SAU | 22,99 € | ✓ paid |
| 0EBFE159-0007 | OpenAI LLC | 19,44 € | ⚠ review |
| 63030050 | AMIDATA SAU | 46,97 € | ✓ paid |
Cell origin
0EBFE159-0007.pdf
page 1
Invoice
OpenAI
Invoice number 0EBFE159-0007
Date of issue May 23, 2025
Date due May 23, 2025
OpenAI, LLC
548 Market Street, PMB 97273
San Francisco, CA 94104
United States
EU OSS VAT EU372041333
Bill to
Cliente Auditado, S.L.
28001 Madrid, Spain
ES VAT ESB00000000
€19.44 EUR due May 23, 2025
DescriptionTaxAmount
ChatGPT PlusMay 23 – Jun 23, 20250%€19.44
Subtotal€19.44
Total€19.44
Amount due€19.44 EUR
extracted 11 Jun 2026
Any document, digitalized.
Literally any document gets digitalized and traceable the moment it is uploaded, so nothing gets lost. Jeff classifies and extracts for you, so you don't have to worry about the content — even for large files with messy documentation.
Extracted data
agrovallegrupo
GARCÍA MORENO, ELENA
Administrativo/a · 22300 Barbastro · DNI 73884512P
Administrativo/a · 22300 Barbastro · DNI 73884512P
Recibo individual de salarios
ConceptoDevengosDeduc.
Salario base1.081,20
Antigüedad36,04
Complemento salarial1.143,79
P. proporc. pagas extra248,27
Cheque restaurante68,30
Cotización CC 4,80%126,25
Desempleo 1,55%40,77
IRPF 17,02%435,75
Base SS 2.630,18Base IRPF 2.560,20T. dev. 2.630,18
Líquido a percibir1.956,64 €
FACTURA
Suministros Ibéricos S.L.
Emisor
Suministros Ibéricos S.L.
B-12345678
C/ Mayor 14, Zaragoza
Suministros Ibéricos S.L.
B-12345678
C/ Mayor 14, Zaragoza
Cliente
Cliente Ejemplo S.A.
A-87654321
P.º Castellana 1, Madrid
Cliente Ejemplo S.A.
A-87654321
P.º Castellana 1, Madrid
DescripciónCantPrecioImporte
Servicio de consultoría1090,00900,00
Material de oficina2410,00240,00
Licencia software anual1120,00120,00
Transporte y logística1100,00100,00
Descuento comercial−120,00
Forma de pago
Transferencia · 30 días
IBAN ES12 0049 1500 8512
Transferencia · 30 días
IBAN ES12 0049 1500 8512
Base imponible1.240,00
IVA 21%260,40
Total1.500,40 €
BankIberia
Ejecutada
Justificante de transferencia SEPA
1.500,40 €
OrdenanteCliente Ejemplo S.A.
IBAN ordenanteES98 2100 0418 4502 0005
BeneficiarioSuministros Ibéricos S.L.
IBAN destinoES12 0049 1500 8512 3456
ConceptoPago factura F-2026-001
ReferenciaTRX-0456-2026
Fecha valor14/01/2026
Comisión0,00 €
Tickets_gastos.pdf · 4 recibos · multi-idioma
CITY CAFE
London · 12/01/26 09:14
Cappuccino3.20
Sandwich6.50
VAT 20%2.07
— — — — —
TOTAL £12.40
VISA ****4471
Haidilao Hot Pot
Shanghai · 2026-01-13
Beef tripe58
Shrimp paste48
Drinks24
— — — — —
TOTAL ¥320
WeChat Pay
CITY TAXI
New York · 01/14/26
Fare15.00
Tip3.50
— — — — —
TOTAL $18.50
CASH
Convenience store
Beijing · 2026-01-15
Bottled water6
Snacks25
Chewing gum14
— — — — —
TOTAL ¥45
Cash
BankIberia
Extracto · Enero 2026
Saldo inicial 2.337,48Saldo final 2.578,52
FechaConceptoImporteSaldo
02/01Nómina Agrovalle+1.956,644.294,12
05/01Recibo Endesa−84,304.209,82
09/01Bizum recibido+40,004.249,82
14/01Transf. F-2026-001−1.500,402.749,42
18/01Recibo seguro−123,902.625,52
20/01Compra tarjeta−46,902.578,62
22/01Comisión mant.−0,102.578,52
Classified as invoice
BankIberia
Ejecutada
Justificante de transferencia SEPA
1.500,40 €
OrdenanteCliente Ejemplo S.A.
BeneficiarioSuministros Ibéricos S.L.
ConceptoPago factura F-2026-001
Fecha valor14/01/2026
FACTURA
Suministros Ibéricos S.L.
DescripciónCantPrecioImporte
Servicio de consultoría1090,00900,00
Material de oficina2410,00240,00
Licencia software1120,00120,00
Forma de pago
Transferencia · 30 días
Transferencia · 30 días
Base1.240,00
IVA 21%260,40
Total1.500,40 €
Built for the messy real world.
Messy, half-scanned, high-volume documentation is the job. Jeff was built for it.
02
Deterministic where it matters
Structured forms are extracted by exact rules. Same input, same output, every time.
03
Matching you can interrogate
Pairing logic is plain SQL. Partial payments, retentions and fuzzy names included. No black boxes.
04
Templates that compound
Teach Jeff a document type once. Fields and validators become an org-wide recipe.
05
Excel in, Excel out
A live workbook with full traceability stamped into the exported .xlsx.
06
A colleague, not a console
Ask Jeff to investigate a gap, read the PDF and reprocess. All in one conversation.
Security & confidentiality
Your documents never leave the vault.
Every conversation runs in its own isolated sandbox. No access to other clients. Built in Europe.
Isolated per conversation
Each session gets its own sandbox. Nothing is shared across clients.
Never used for training
Your data is used to do your work. Never to train any model.
Encrypted, then erased
Encrypted in transit and at rest. Removed when the conversation closes.
European compliance built in
GDPR, EU AI Act and LOPDGDD from day one. Processing stays in the EU.
EU infrastructure
Isolated sandbox
Documents
Workbook
Messages
GDPREU AI ActLOPDGDD
