Tenzai vs ysoserial: side-by-side comparison (2026)
Tenzai is a commercial penetration testing solution by Tenzai. ysoserial is a free penetration testing solution. Features, integrations, deployment and the company behind each one, side by side.
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Agentic AI platform for continuous, autonomous penetration testing of enterprise apps.
A proof-of-concept tool for generating payloads that exploit unsafe Java object deserialization.
Side-by-side comparison
Feature
Tenzai
ysoserial
Pricing model
Commercial
Free
Category
Penetration Testing
Penetration Testing
Deployment and fit
Deployment type
Hybrid
On-Premises
Company size fit
Mid-Market, Enterprise
Startup, SMB, Mid-Market, Enterprise
Open source
GitHub stars
–
8,501
Last commit
–
Mar 2024
Company
Company
Tenzai
–
Use cases and capabilities
AI Pentesting
Yes
No
Agentic AI Security
Yes
No
Continuous Testing
Yes
No
Red Team
Yes
No
Vulnerability Exploitation
Yes
No
Penetration Testing Framework
Yes
No
Vulnerability
Yes
Yes
Web Security
Yes
No
App Security
Yes
No
Security Research
No
Yes
Payload Generation
No
Yes
Core features
6 features listed
No features listed
Integrations
2 integrations listed
No integrations listed
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