For Big 4 Audit Teams

Audit documentation that writes itself.

From evidence to workpaper in seconds. Review SOC reports, contracts, and confirmations at scale. Every extraction cited. Every answer linked to source.

Request Early Access See how it works
3-4 hrs
per SOC report today — reduced to minutes
400+
reports with one template — standardized extraction
30%
of audit costs are rework from manual error
Stacks of audit documents with sticky notes - the reality of manual document review
The Problem

Most audit work is high-volume extraction. Your team is drowning in it.

A single SOC report takes 3-4 hours of manual extraction — reading, copying, cross-referencing, formatting. Multiply that by hundreds of reports per engagement.

Large audits employ 1,000+ people year-round doing repetitive work. Substantive testing alone is thousands of hours per engagement. Time that could be spent on exceptions, judgments, and the work that actually requires expertise.

£2,500

Per SOC Report

Billable time for manual extraction. With 400+ reports per engagement, that's over £1M in extractable cost.

30%

Rework Rate

Of audit costs are rework due to human error. Inconsistent extraction, missed fields, formatting mistakes.

2x

Double Handling

Data from general AI tools needs conversion to firm templates, then re-review. You're paying twice.

Tabular Review

Documents become rows. Questions become columns.

Upload your evidence population. Define your extraction prompts once. Lahtai processes hundreds of documents in parallel — every answer linked to its source, ready for inspection.

Service Organization Controls Review — Q4 2024
+ Add Column Export to Template
Document Status AI Extraction Confidence
AWS_SOC2_Type2_2024.pdf
Reviewed OpinionUnqualified opinion. Testing period Jan 1 – Dec 31, 2024. No exceptions noted in CC6.1 logical access controls.
96%
Workday_SOC1_2024.pdf
Exception FindingException in Control 4.2: 3 of 25 sampled access reviews not completed within 90-day policy. Management response included.
94%
Salesforce_SOC2_2024.pdf
Pending CoverageTesting period ends Oct 31, 2024. Gap period identified: 61 days uncovered. Bridge letter required.
91%

Template Builder

Click a question in your audit template to auto-populate the prompt. Click a cell to set the destination. No prompt engineering required.

Bulk Processing

Process 400+ standardized reports with a single template. Unlike ChatGPT, no repeated uploads — parallel execution across your entire population.

Direct to Template

Outputs map directly to your firm's approved workpaper format. No Excel export/import dance. No re-review. Straight to sign-off.

Audit Trail

Every answer links to source. Character-perfect accuracy.

Regulators don't want to trust AI. They want to verify your work. Lahtai makes every data point traceable to the exact paragraph, page, and document — verifiable accuracy you can defend under inspection.

  • Click any cell to see source text, page number, and document
  • AI reasoning trail visible for every extraction decision
  • Validate against prior year — 100% accuracy confirmation
  • Exceptions surfaced for human judgment, not buried
Control Exception Identified
Workday_SOC1_2024.pdf
"For Control 4.2 (Access Review), the service auditor noted that 3 of 25 sampled access reviews were not completed within the 90-day policy window. Management has implemented additional monitoring procedures..."
Page 47, Section V — Control Exceptions

Built for the firms that need it most

Deloitte EY PwC KPMG

Focus on judgment, not documentation.

We're onboarding audit teams from Big 4 firms. Request early access to see Lahtai on your own documents.

No credit card required. We'll reach out within 24 hours.