AssemblyAI

AssemblyAI is a speech AI API that turns audio and video into accurate transcripts, then layers on audio intelligence such as speaker labels, summaries, topic detection, sentiment analysis, content moderation and PII redaction. It supports dozens of languages, real-time streaming and large batch workloads, with SDKs for Python, JavaScript and other stacks. Product teams use it to build meeting notes, call analytics, podcast search, captioning and compliance monitoring without training their own speech recognition models.