Assembly AI

Assembly AI is a developer-focused speech AI platform that provides advanced models for converting audio to text and extracting structured insights from voice data. It offers highly accurate automatic speech recognition (ASR) with support for multiple languages, punctuation, diarization, and word-level timestamps, making it suitable for applications like meeting transcription, call analytics, media captioning, and voice interfaces. Beyond core transcription, Assembly AI exposes powerful speech intelligence models via simple APIs, including speaker detection, sentiment analysis, topic detection, content moderation, summarization, and entity detection.

These capabilities enable organizations to transform unstructured audio and video into searchable, analyzable data without building their own machine learning pipelines. The platform is designed for production-scale workloads, featuring streaming and batch endpoints, asynchronous processing, webhooks, and SDKs for common programming languages.