Presidio alternative

Presidio is a library. NeutralAI is the compliance gateway around it.

Microsoft Presidio is a strong open-source foundation for PII detection and anonymization. The enterprise question is what happens after detection: vaulting, policy boundaries, audit evidence, tenant controls, SSO, browser enforcement, and maintenance.

Calculate build vs buyView benchmark

Benchmark proof

NeutralAI vs Presidio-vanilla

1000 cases

NeutralAI overall F1

99.8%

Presidio-vanilla overall F1

57.5%

NeutralAI exact-match accuracy

98.4%

Overall F1NeutralAI 99.8% / Presidio 57.5%
Overall recallNeutralAI 98.4% / Presidio 40.3%

Public benchmark generated on 2026-05-08. It covers DE, EN, ES, FR, TR prompt samples and links back to the gateway-owned proof page.

Feature comparison

What you still need to build around Presidio

Presidio gives teams an adaptable detection engine. Regulated AI teams also need the operational layer that makes masking enforceable, explainable, and supportable in production.

Read the technical note
Capability
Build with Presidio
Buy NeutralAI
PII detection and anonymization
Strong open-source analyzer and anonymizer building blocks for text, images, and structured data.
Uses proven detection foundations, then adds product calibration, policy enforcement, and gateway controls.
Vault and reversible tokenization
Possible to build, but your team owns key handling, token lifecycle, storage, and restore paths.
Encrypted vault workflows, token boundaries, TTL controls, and product-level restore behavior are part of the platform.
Audit evidence
You design the logging model, redaction policy, admin visibility, and evidence exports.
Audit-friendly events, compliance reports, benchmark artifacts, and operational proof are product surfaces.
Multi-tenant rollout
You own tenant isolation, API keys, rate limits, policy scoping, and admin roles.
Tenant-aware controls, billing posture, API key lifecycle, admin surfaces, and rollout boundaries are built in.
Enterprise access controls
SSO, MFA, BYOK posture, SIEM export, and procurement evidence are separate engineering projects.
SSO/MFA posture, BYOK-oriented deployment choices, SIEM-ready evidence, and security review assets are part of the product story.
Browser extension
You build, submit, support, and monitor browser-specific enforcement yourself.
Chrome and Edge extension enforcement is a first-class user path with visible shield status and quota behavior.
NeutralAI is not positioned as a from-scratch recognizer model. It uses proven open-source detection foundations and adds the gateway, policy, tokenization, audit, deployment, and UX layers regulated teams usually have to build themselves.
Build vs buy ROI calculator

The hidden cost is not installing Presidio. It is productizing everything around it.

Use conservative assumptions to estimate the internal build path. This calculator keeps the model simple: UK engineering time, platform operations, and compliance evidence work. Defaults use a modest two-engineer production build over six months, not a large transformation programme.

SpaCy and NLP model updates
Recognizer tuning and regression packs
Security patches and dependency drift
Scaling, observability, and incident response
Compliance evidence and customer questionnaires
Browser store releases and extension support

DIY build

£112,500

NeutralAI

£2,394

Estimated savings

£110,106

Breakdown: £102,000 engineering, £5,400 platform operations, and £5,100 compliance evidence work.

Customer-safe proof

Use the website for the sales story. Use the gateway for the proof source.

The comparison page keeps SEO and buyer education on the marketing site, then links to gateway-owned benchmark pages for reproducible accuracy and latency details.

Open accuracy benchmarkOpen latency benchmarkTry Free