Arize AI has raised $70 million in Series C funding to accelerate its mission of building the gold standard for AI evaluation and observability. The company aims to ensure LLMs and AI agents work reliably at scale in the real world, as AI takes on high-stakes roles in finance, healthcare, and autonomous systems. Arize is developing a unified platform that combines evaluation and observability, providing a framework-independent solution for AI engineers to debug, monitor, and optimize AI systems. The company also plans to expand its partnership with Microsoft, deepen technical integrations with Google Cloud and NVIDIA's AI microservices, and hire world-class engineers to shape the future of AI observability. With this funding, Arize is doubling down on its mission to make AI work responsibly, explainably, and in ways that amplify human decision-making.