Competitor Comparison
Noxys vs Giskard: AI Governance — Runtime vs Pre-Production
Giskard is a Paris-based AI red teaming platform that tests LLM applications for vulnerabilities before deployment — hallucinations, prompt injection, bias, data disclosure. Noxys is a European AI Firewall that governs AI usage in production — shadow AI discovery, real-time PII detection, policy enforcement. Giskard secures what you build; Noxys secures what your employees use. Together they cover the full AI TRiSM lifecycle.
TL;DR
Giskard tests your AI applications before they reach production. Noxys governs how your employees use third-party AI tools (ChatGPT, Claude, Gemini) every day. These are two distinct phases of the AI security lifecycle — and the most mature AI TRiSM organizations use both.
At-a-Glance Comparison
| Criterion | Noxys | Giskard |
|---|---|---|
| Focus | Runtime AI governance | Pre-production AI testing |
| Target User | CISO / Compliance officer | Developer / AI product team |
| Shadow AI Discovery | Yes, 15+ platforms | No |
| Real-time PII Detection | Yes, < 10ms | No |
| LLM Red Teaming | No | Yes, 50+ specialized probes |
| Vulnerability Scanning | Limited | Yes, adaptive AI red teamer |
| Bias & Hallucination Detection | No | Yes |
| Policy Engine (Block/Coach/Log) | Yes | No runtime enforcement |
| EU AI Act Compliance Module | Built-in (Art. 4, 9, 13, 14) | Addresses compliance, not primary focus |
| Data Residency | 100% EU, zero US cloud | EU option available, not mandatory |
| Open Source | No | Yes, giskard-oss Python library |
| Pricing | Free tier, from 8 EUR/user/mo | Open source free, enterprise custom |
| Deployment | Minutes (browser extension) | API integration required |
| Best For | Governing employee AI usage | Testing AI apps before production |
Different Problems, Different Phases
The AI security lifecycle has two distinct phases:
1. Pre-production — Giskard's domain
Test your AI applications for vulnerabilities, bias, hallucinations, prompt injection before they go live. Ensure the models you build or deploy are safe and compliant.
2. In-production — Noxys's domain
Govern how employees use third-party AI tools (ChatGPT, Claude, Gemini, Copilot) every day. Detect shadow AI, prevent data leaks, enforce policies, maintain compliance.
Most enterprises need both. Giskard protects the AI you build; Noxys protects against the AI your employees use unsupervised.
AI Red Teaming vs Runtime Governance
Giskard's strength: 50+ specialized probes that automatically detect vulnerabilities in LLM applications — prompt injection, jailbreaking, data disclosure, sycophancy, hallucinations. Their adaptive red teamer learns from bot responses rather than using static tests. Enterprise customers include AXA, BNP Paribas, Michelin, L'Oréal.
Noxys's strength: real-time browser-level interception of AI interactions. Sub-10ms PII detection catches IBANs, credentials, patient data before it leaves the browser. Shadow AI discovery reveals every AI tool in use across the organization. Policy engine lets CISOs block, coach, or log per department.
EU AI Act Coverage
Both companies are Paris/France-based and address EU AI Act compliance, but from different angles:
Giskard
- Pre-deployment testing (quality, bias, safety)
- Model quality requirements for the AI Act
- Data residency optional
Noxys
- Operational compliance (Art. 4, 9, 13, 14)
- Audit trails and human oversight
- 100% EU hosting, zero US cloud
Giskard's data residency is optional; Noxys mandates 100% EU hosting. For enterprises subject to GDPR and the EU AI Act, data residency is not an afterthought.
Open Source vs Managed Platform
Giskard offers an open-source Python library (giskard-oss) for basic LLM testing. This is a strong developer on-ramp. Enterprise features (50+ probes, CI/CD integration, SOC 2, HIPAA) require the paid platform.
Noxys offers a free tier (10 users) with transparent pricing. No open-source component, but deployment takes minutes versus API integration setup that can take days.
Who Should Choose Noxys
- CISOs and compliance officers governing employee AI usage
- Organizations needing shadow AI visibility (what tools are employees using?)
- Companies requiring real-time PII detection and data leak prevention
- EU enterprises mandating 100% data residency
- Teams needing EU AI Act compliance out of the box
- Organizations wanting immediate deployment (minutes, not weeks)
Who Should Choose Giskard
- AI engineering teams building and deploying LLM applications
- Organizations needing pre-production vulnerability testing
- Teams requiring bias detection and hallucination prevention
- Companies with CI/CD pipelines that need automated AI testing
- Developers wanting an open-source starting point
- Enterprises in regulated industries needing model quality assurance (AXA, BNP Paribas use cases)
Can You Use Both?
Yes — and it's the recommended approach for comprehensive AI TRiSM coverage.
Build phase — Giskard
- Test your AI applications before deployment
- Detect vulnerabilities, bias, hallucinations
- CI/CD integration for continuous testing
Use phase — Noxys
- Govern employee AI interactions daily
- Detect shadow AI, prevent PII leaks
- Policies, EU AI Act compliance, audit trails
Organizations using both pre-production testing and runtime governance achieve comprehensive AI TRiSM coverage — the approach recommended by Gartner for enterprises deploying AI at scale.
Govern your AI usage in minutes
Deploy in under 10 minutes. Free plan for up to 10 users. No credit card required. 100% EU-hosted.
FAQ
Is Giskard a competitor to Noxys?
They address different phases of AI security. Giskard tests AI before deployment; Noxys governs AI usage in production. They are complementary, not competing.
Which should I implement first?
If your immediate concern is employees using ChatGPT with sensitive data (shadow AI), start with Noxys. If you're building AI applications that need testing before launch, start with Giskard.
Do both companies support EU AI Act compliance?
Yes. Both are French companies. Giskard focuses on model testing and quality requirements. Noxys focuses on operational compliance (Articles 4, 9, 13, 14) with mandatory EU data residency.