Introducing the Sync API: transcripts in a single call

AssemblyAI has introduced the Sync API, a new service designed to efficiently transcribe short audio clips with minimal latency. Unlike the existing Async and Realtime APIs, the Sync API allows users to send an audio clip via a single HTTP POST request and receive a completed transcript in response within approximately 134 milliseconds. This development addresses the specific needs of short-duration audio tasks such as dictation, voice commands, and voice agents, eliminating the need for job queues or WebSocket connections. The Sync API, powered by the Universal-3.5 Pro model, boasts a low word error rate and provides high accuracy without the need for additional model management or integration overhead. It supports audio up to two minutes in length, offers prompt steering for various languages, and is priced at $0.45 per hour, making it a competitive option for developers requiring quick and precise audio transcription.

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