Kiln

Kiln is a no-code application for building and refining AI models without requiring machine learning expertise. It provides tools for generating synthetic training data, fine-tuning existing models, evaluating performance, and optimising prompts. The platform is designed for teams who want to improve AI system behaviour through structured workflows rather than manual prompt tweaking alone. The tool combines several AI development tasks into one interface: you can create synthetic datasets to train on, fine-tune models with your own data, test model outputs against quality benchmarks, and experiment with different prompts and configurations. Kiln offers both a free web application and an open-source library, making it accessible whether you prefer a visual interface or programmatic control. It's useful for organisations building internal AI systems, customer-facing AI features, or anyone experimenting with AI model customisation beyond standard APIs.