Janus
Simulation testing for AI agents
Janus launched on June 4, 2025 with 268 votes, #109 of 7,999 launches that month and more than 95% of that year's launches. The site was still online in September 2026, 1 year on.
In plain words
Janus is a simulation testing platform that evaluates AI agents for weaknesses including hallucinations, rule violations, and tool-call failures. It runs thousands of automated simulations against chat and voice agents to identify issues, and provides custom evaluations to help improve model performance. The tool is designed for teams building and deploying AI agents who need systematic testing before production use.
written from the facts on this page · September 2026
From the sources
Janus battle-tests your AI agents to surface hallucinations, rule violations, and tool-call/performance failures. We run thousands of AI simulations against your chat/voice agents and offer custom evals for further model improvement.
The AI deployment layer for critical industries.
Off-the-shelf AI is probabilistic and doesn't know your policies. High-stakes work leaves no margin for error, and generic models can't clear that bar. We learn your rules from the people who run the process and deploy agents that hit 99%+. Your data is your biggest advantage, but off-the-shelf tools send it outside your walls. We deploy inside your own environment so nothing leaves and your data compounds for you, building more accurate systems over time. The intelligence built is yours to own. A foundation that knows your processes, rules, and the regulations you operate under better than any generic model. It becomes a lasting edge that no one else canfrom withkairos.co
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