AssemblyAI has introduced Universal-1, a state-of-the-art speech recognition model that achieves near-human accuracy in transcribing audio files. Trained on millions of hours of data, it supports English, Spanish, French, and German languages with more to come. The company also launched Best and Nano models for applications where accuracy is paramount or cost-effectiveness is required, respectively. AssemblyAI's Ruby SDK allows developers to transcribe audio files using these models in their applications. Additionally, the platform offers features like entity detection, content moderation, PII redaction, and LeMUR for applying LLMs to audio data.