Problem How it works Capabilities Founder Trust Book a Demo
VERIFIABLE REASONING · FINANCIAL SERVICES

From black box
to glass box.

Reasonix is the verifiable reasoning layer for financial decisions — every approval, flag, and denial justified by evidence a regulator can check, step by step.

reasonix · credit adjudication
underwriter@bank ▸ Adjudicate application #A-48213 — $32,000 unsecured personal loan — and produce a defensible decision record.
EV
@evidence
Grounds every claim in source data — credit file, bank statements, KYC documents.
PO
@policy
Maps each criterion to ECOA / Regulation B and internal credit policy.
RE
@reasoner
Builds the decision chain: DTI, income stability, thin-file and derogatory signals.
VF
@verifier
Independently re-checks each step against its evidence; flags anything unsupported.
Decision: DECLINE · 4 principal reasons · Verifiable Reasoning Record attached · 0 unsupported steps · adverse-action notice ready
Adverse-action notice SR 11-7 doc Export record Ask Reasonix to explain any step…
THE PROBLEM

Your models can make the decision at scale. When a regulator asks why, the honest answer is a vector of feature weights — not a reason you can defend.

HOW IT WORKS

A pipeline built for defensibility, not just an answer.

Reasonix grounds each decision in cited evidence, decomposes it into explicit steps, and independently verifies every one — then assembles a regulator-ready record.

Request a technical walkthrough
ingest · groundingRETRIEVING
credit_file.json✓ linked
bank_stmt_q3.pdf✓ linked
kyc_identity.pdf✓ linked
policy_v4.md✓ linked
STAGE 01

Ground in evidence

Every downstream claim is tied to a retrieved, cited source — not the model's memory. If it isn't in the evidence, it doesn't enter the decision.

debt-to-income0.41 / 0.43
income stability24 mo
derogatory marks2 · recent
STAGE 02

Reason in steps

The decision decomposes into explicit sub-claims a human can read — each computed from the evidence and checked against the applicable policy threshold.

step · DTI within policyVERIFIED
step · income documentedVERIFIED
step · delinquency historyVERIFIED
step · fraud inferenceFLAGGED
unsupported steps→ human review
STAGE 03

Verify each step

An independent pass re-checks every claim against its evidence and rule. Anything unsupported is surfaced and routed to a reviewer — never buried behind a confident score.

WHAT WE BELIEVE

Explanation describes what a model did. Verification proves the decision was right. We build for verification.

CAPABILITIES

Everything you need to stand behind a decision.

One reasoning engine, three doors into your institution — credit, financial crime, and compliance — producing the same verifiable artifact for each.

Explore the platform
reviewerwhy was #A-48213 declined?
reasonixCITED
reason 1DTI 0.41 · policy §3.2
reason 22 recent delinquencies
sourcecredit_file.json:ln42

Reviewer copilot

Ask any decision "why," and get an answer that cites the exact evidence and policy behind each step — so reviewers sign off in minutes, not hours.

VERIFIABLE RECORDSEALED
decisionDECLINE
principal reasons4 · ECOA-mapped
evidence links11
verification100% checked

Verifiable Reasoning Record

The artifact itself: a sealed, evidence-linked record that plugs straight into adverse-action notices, model-risk files, and exam response.

decisions today12,418
auto-issued73%
flagged to review27%
unsupported caught214

Continuous assurance

A live view of every decision, what was auto-issued, and where reasoning was caught before it shipped — model-risk monitoring your examiners will recognise.

WHAT YOU GET

Four things no black box can give you.

01

Independent verification

Every step is checked against its evidence without trusting the model that produced it.

02

Evidence-linked

Each claim points to the exact source — a statement line, a tradeline, a policy clause.

03

Regulator-ready

Maps to ECOA / Reg B, SR 11-7 and the EU AI Act — documentation produced by default.

04

Layer, not replacement

Sits on top of your existing models and vendors. No rip-and-replace, no lock-in of your stack.

FOUNDER
PORTRAIT · REPLACE
VST
Vaibhav Singh Tomar Founder & CEO

Building the accountability layer for financial AI.

Vaibhav founded Reasonix on a simple conviction: as AI moves deeper into lending, fraud, and compliance, institutions will be judged not on the decisions their models make, but on whether they can defend them. Capability without accountability is a liability waiting to surface.

Reasonix is his answer — a reasoning layer that makes every high-stakes financial decision verifiable, evidence-linked, and ready for the regulator's question before it's asked. He works hands-on with early design partners, shaping the product around real underwriting and compliance workflows.

"The winners in financial AI won't be the ones with the best black box. They'll be the ones who can prove their decisions."
TRUST & DATA

Built for the institutions regulators watch closest.

Reasonix is designed for regulated financial environments: your data stays isolated, decisions are logged immutably, and the reasoning record is the audit trail. We deploy into your VPC, redact PII at the boundary, and never train shared models on your customers' data.

SOC 2 · In progress Data isolation VPC / on-prem RBAC PII redaction Immutable audit log SR 11-7 aligned EU AI Act ready
// data governance
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See a decision
you could actually defend.