LeMUR — AI-Powered Audio Intelligence API for Developers

Stop manually transcribing and analyzing audio files—LeMUR lets you extract insights, summaries, and answers from spoken data with just a few lines of code.

What It Does for Your Business

LeMUR is a developer-focused API that turns raw audio data into actionable business intelligence. Instead of spending hours transcribing calls, interviews, or recordings, you integrate LeMUR into your application and instantly get summaries, sentiment analysis, topic extraction, and custom insights. It's built on AssemblyAI's speech recognition foundation, so accuracy is production-grade from day one.

For small business developers, this means you can add AI-powered audio understanding to customer service platforms, compliance tools, meeting recorders, or podcast analytics without building machine learning models yourself. LeMUR handles the heavy lifting—you focus on building the product your customers need.

Key Features

• Universal Summarization — Automatically create concise summaries of any audio file in seconds, cutting manual review time from hours to minutes
• Custom Questions API — Ask specific questions about audio content (e.g., "Was pricing discussed?" or "What action items were assigned?") and get direct answers
• Entity Extraction — Automatically identify names, companies, phone numbers, and other key data points without manual tagging
• Sentiment and Topic Detection — Understand caller emotion and conversation themes to improve customer experience and identify training gaps
• One API, Multiple Models — Access summarization, Q&A, and analysis through a single integration point—no juggling different tools
• Low Latency — Results returned in seconds, enabling real-time applications and faster decision-making workflows

Best For

Developers at small business software companies, contact center platforms, legal firms managing client interviews, healthcare providers processing patient consultations, podcasters and media companies, and SaaS founders building productivity tools. Any business that needs to extract value from recorded conversations at scale.

Pricing

LeMUR is available as part of AssemblyAI's API pricing. The exact cost depends on audio volume, but AssemblyAI offers pay-as-you-go pricing starting at approximately $0.10 per minute for transcription, with LeMUR features included. Free tier available for testing and development.

Business ROI

Small businesses using LeMUR typically save 10–15 hours per week on manual transcription and review work. A customer service team processing 200 calls monthly can eliminate the equivalent of one full-time employee's transcription duties—roughly $35,000 annually in payroll savings. Beyond time savings, better data extraction means faster compliance documentation (critical for healthcare and legal), improved quality assurance insights, and the ability to launch audio-native features that competitors without developer tools cannot offer. For SaaS founders, adding LeMUR enables premium feature tiers, directly increasing customer lifetime value.