LangevinAI is an AI-native FP&A tool that turns a raw general ledger export into a complete management report in seconds. Upload a GL file from QuickBooks, Sage, Yardi, or any accounting software and it automatically builds a P&L, balance sheet, and AI-written variance commentary per account — no spreadsheet work required.

What accounting software exports does LangevinAI support?

LangevinAI supports GL exports from QuickBooks, Sage 50/200/Intacct, Yardi Voyager, SAP, and any other accounting software that exports to CSV, XLS, or XLSX. It automatically detects the header row, column mapping, and date formats without any configuration.

Does LangevinAI store my financial data?

No. LangevinAI has a zero-persistence architecture. Your GL data is parsed entirely in the browser and lives in browser memory only. It is sent to Anthropic's Claude API for analysis but is never written to any database or file storage. Refreshing the page clears all data.

How much does LangevinAI cost?

LangevinAI offers three plans: Solo at $39/month (1 seat), Pro at $79/month (3 seats), and Business at $199/month (10 seats). All plans include unlimited entities and analyses, and every plan offers a discounted Bring Your Own Key (BYOK) option ($24, $59, and $149/month respectively) if you use your own Anthropic API key. New accounts start with a 3-analysis free trial, no credit card required.

What does LangevinAI's AI commentary do?

LangevinAI generates one professional-grade sentence of variance commentary per P&L account, explaining the key driver behind each movement. It also detects GL anomalies such as provision cycle errors, account coding mismatches, and cut-off issues, and cross-references any supporting documents you upload (PDFs, emails, Word files) to ground its commentary in your actual context.

How long does LangevinAI take to analyze a general ledger?

LangevinAI typically completes a full GL analysis — account classification, P&L build, industry detection, and AI commentary for all accounts — in under 30 seconds.

What is the BYOK plan?

BYOK (Bring Your Own Key) is a discounted option available on every LangevinAI plan: you paste your own Anthropic API key directly into the browser and save $15-$50/month versus the standard price. The key is stored only in your browser and is never sent to LangevinAI's servers — AI requests go directly from your browser to Anthropic, and AI costs are billed to your own Anthropic account.

Can LangevinAI compare two periods or budget vs. actual?

Yes. LangevinAI supports side-by-side period comparison (e.g. Q2 vs Q1) with Δ$ and Δ% variance columns, color-coded favorable or unfavorable per account type. It also supports budget vs. actual analysis when a separate budget file is uploaded.

AI-Native FP&A

From GL export to
management report
in seconds.

Upload any general ledger file. LangevinAI classifies every account, builds your P&L, and writes AI variance commentary — automatically.

What LangevinAI does

Instant P&L & Balance Sheet

Classifies every GL account automatically. Revenue, COGS, expenses — structured and totalled in one upload.

AI Variance Commentary

One-sentence AI insight per account, generated automatically. Click any comment to copy it.

Period & Budget Comparison

Compare any two periods side-by-side. Δ$ and Δ% color-coded favorable/unfavorable per account type.

Works With Any GL

QuickBooks, Sage, Yardi, SAP exports. CSV, XLS, XLSX. Messy formats handled automatically.

GL Anomaly Detection

Flags provision cycle errors, coding mismatches, cut-off issues, and 15+ other GL anomalies — one professional note per account, automatically.

How it works

01

Upload your files

Drop your GL export, budget file, or supporting documents — PDFs, emails, Word files. No formatting required.

02

AI classifies & structures

Accounts are classified automatically, your industry is detected, and everything is mapped to a clean P&L structure.

03

Your report is ready

P&L, balance sheet, AR/AP aging, charts, and variance commentary — faster than it takes to make a coffee.

See it in action

Files in. Insights out.

Drop in your GL, budget, and any supporting documents. LangevinAI handles the rest.

langevinai.io

Uploaded files

XLSX

Q2_Financials.xlsx

General Ledger

XLSX

Q1_Financials.xlsx

Comparison Period

PDF

Lease_Amendment.pdf

Supporting Document

DOCX

Board_Update_Q2.docx

Supporting Document

EML

RE: Q2 Cost Review.eml

Email Thread

Income Statement — Q2 2024 vs Q1 2024

Account	Q2 2024	Q1 2024	Δ$	Commentary
Revenue
Software Subscriptions	$138,200	$124,500	+$13,700	Net 4 new enterprise seats added in April; churn below 2% for the third consecutive quarter.
Professional Services	$34,100	$31,200	+$2,900	Three new engagements flagged in the Q2 Board Update converted to billable hours; Q3 pipeline remains strong.
Total Revenue	$172,300	$155,700	+$16,600
Cost of Revenue
Cloud Infrastructure	$19,800	$18,400	+$1,400	Scaled with subscriber growth; per the Q2 Cost Review, unit cost per seat fell 3% following reserved instance renegotiation.
Support & Customer Success	$13,400	$12,100	+$1,300	One FTE added mid-April; the Q2 Cost Review confirmed no further support headcount additions planned for H2.
Gross Profit	$139,100	$125,200	+$13,900
Operating Expenses
Sales & Marketing	$44,800	$42,300	+$2,500	Per the Q2 Cost Review, conference and events spend accounts for $1,800 of the increase; base headcount and campaign budget unchanged.
Research & Development	$31,200	$28,600	+$2,600	Two senior engineers onboarded in May per the headcount plan in the Q2 Board Update; full-quarter cost impact expected in Q3.
General & Administrative	$16,100	$15,200	+$900	Lease Amendment effective April 1 reduces annual occupancy cost by $6,800; uplift driven by higher D&O insurance premium.
EBITDA	$47,000	$39,100	+$7,900

Pricing

Ready to stop building
reports manually?

Simple, transparent pricing — all plans include unlimited GL uploads, AI commentary, and every feature.

3 analyses free · No credit card required

Questions about pricing? Contact us

Start your LangevinAI subscription

All plans include unlimited GL uploads, AI commentary, and every feature. The only difference is seats and whether you use our AI or your own key.

📊

Drop your General Ledger here

or browse · CSV · XLS · XLSX

Welcome to LangevinAI

Tell us a bit about yourself to get started.

Your name

Company / organisation

⏳

Analyzing…

Reading your GL, detecting columns, and classifying accounts…

Column Mapping

Match your file's columns to the required fields. Auto-detected where possible.

Data Preview (first 5 rows)

Views

Context

Budget File ↑ Upload budget

support@langevinai.io

Revenue & EBITDA

Expense Mix

Revenue vs Expenses

Revenue Breakdown

Expense Trends

Age as of

Accounts Receivable

Aging

Cash Flow

● Commentary reflects a different period — numbers are up to date.

Unmatched Accounts 0

From GL export tomanagement reportin seconds.