Comet ML

Comet ML is a machine learning platform company founded in 2017 that provides experiment tracking, model registry, and dataset versioning tools for data science and ML engineering teams. The platform automatically logs model parameters, metrics, code, and artifacts during training runs, enabling teams to compare experiments, reproduce results, and understand what changes improved model performance. Comet raised $56M and serves ML teams at technology companies, financial institutions, and healthcare organizations that run large numbers of experiments and need systematic tracking to manage model development at scale. The platform integrates with popular ML frameworks including TensorFlow, PyTorch, Scikit-learn, and XGBoost with minimal code instrumentation. Comet also offers an LLM evaluation and monitoring product that applies experiment tracking concepts to LLM prompt engineering and output evaluation. The company competes with Weights & Biases, MLflow, and Neptune in the ML experiment tracking market while differentiating through its security features and enterprise-grade access controls for regulated industries. Comet's comprehensive model lifecycle management makes it particularly valuable for teams working in compliance-heavy environments where experiment reproducibility and audit trails are required.