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I security testing is no longer optional. The EU AI Act deadline is August 2, 2026. OWASP published the Agentic AI Top 10 in December 2025. And the most popular open-source LLM testing tool just got acquired by OpenAI.
We needed a vendor-neutral alternative. So we built **[Tessera](https://github.com/tessera-ops/tessera)** — an open-source framework that runs 42 automated OWASP security tests against any AI model or agent.
TesseraOpen-source OWASP security testing for AI models and agents
Ali Cheaibleft a comment
The Agentic AI Tests This is where it gets interesting. The OWASP Top 10 for Agentic Applications (ASI 2026) defines 10 risks specific to AI agents — systems that use tools, make decisions, and operate autonomously. Nobody had a complete implementation. Until now.
TesseraOpen-source OWASP security testing for AI models and agents
Ali Cheaibstarted a discussion
Quick start: pip install tessera-ai && tessera --quickscan openai gpt-4o
Stack: Python + FastAPI + React. MIT licensed. Happy to answer questions