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§ Private Profile · New York City, NY, USA
Auto-optimizer for AI agents
Key people at ZeroEval.
ZeroEval was founded in 2025 by Sebastian Crossa (Co-Founder) and Jonathan Chávez (Founder).
Our mission is to build self-improving AI agents.
We're here to close the last mile reliability gap.
Through calibrated llm judges and automatic evaluations, we help companies optimize their agents 10x faster than doing manual experimentation.
Key people at ZeroEval.
ZeroEval was founded in 2025 by Sebastian Crossa (Co-Founder) and Jonathan Chávez (Founder).
ZeroEval is an auto-optimizer platform for AI agents that enables teams to continuously evaluate and improve their AI models in production. It provides real-time insights into why AI agents fail and offers automated optimization by leveraging human feedback and production data. The platform supports capturing and labeling live production traces, training calibrated LLM (large language model) judges that improve over time, and automatically tuning model prompts and configurations to enhance agent performance. ZeroEval primarily serves AI development teams aiming to accelerate iteration cycles and improve the reliability and effectiveness of their AI agents[1][3].
Founded recently in 2025, ZeroEval is positioned in the growing AI tooling sector, addressing a critical need for scalable, data-driven evaluation and optimization of AI systems deployed in real-world environments. Its impact on the startup ecosystem lies in enabling faster, more reliable AI product development, which can reduce time-to-market and improve AI adoption across industries[1][2].
ZeroEval was founded in 2025 by Jonathan Chávez and Sebastian Crossa in New York, NY. Both co-founders focus on driving the company’s growth, execution, and strategic direction[4][5]. The idea emerged from the challenge AI teams face in understanding and improving AI agent behavior in production environments, where traditional evaluation methods are slow and insufficient. ZeroEval’s founders built the platform to provide instant, actionable insights and automated optimization, helping teams iterate faster and deploy smarter AI agents[1][4][5].
Early traction includes adoption by AI leaders and production teams who rely on ZeroEval’s SDK to instrument their agents, capture real-time data, and continuously improve model performance through calibrated evaluation and autotuning[1][3].
ZeroEval rides the wave of increasing AI adoption and the growing complexity of AI systems in production. As AI agents become integral to many applications, the need for continuous, data-driven evaluation and improvement grows. The timing is critical because traditional offline evaluation methods cannot keep pace with rapid AI model updates and deployment cycles.
Market forces favor platforms like ZeroEval due to the rising demand for production-grade AI reliability, explainability, and performance tuning. By enabling teams to optimize AI agents in real-time, ZeroEval helps reduce operational risks and improve user experiences, influencing the broader ecosystem by setting new standards for AI lifecycle management[1][3].
Looking ahead, ZeroEval is poised to expand its capabilities in automated AI agent optimization, potentially incorporating more advanced feedback mechanisms and broader model support. Trends such as increased AI regulation, demand for transparency, and multi-model orchestration will shape its evolution.
Its influence may grow as AI teams increasingly adopt continuous evaluation and autotuning as standard practice, making ZeroEval a critical infrastructure component for AI-driven products. The company’s ability to shorten iteration cycles and improve AI reliability will remain a key competitive advantage in the fast-moving AI landscape[1][3].
ZeroEval’s mission to build self-improving AI software aligns with the broader shift toward autonomous, adaptive AI systems, making it a notable player in the future of AI development tooling.
