Perle AI is a provider of modular AI training data solutions built around an expert‑in‑the‑loop annotation platform. The company delivers domain‑expert human annotation, data enrichment, preprocessing, and model evaluation across the AI data lifecycle, targeting use cases including RLHF, drift detection, and vertical-model fine‑tuning. Its ML workflow supports real-time visibility, auditability, and project-specific training pipelines.