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AssemblyAI

Discover AssemblyAI’s powerful Speech-to-Text API with unmatched accuracy, speaker detection, and real-time transcription. Build scalable, voice-powered products with ease.

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About AssemblyAI

Speech-to-Text for Modern Applications

AssemblyAI offers a cutting-edge speech-to-text API designed for developers and enterprises alike. Its transcription engine is built to deliver industry-leading accuracy, helping businesses convert audio into reliable, structured data. Whether you’re building a conversational AI tool or enhancing product accessibility, AssemblyAI provides the voice recognition tools you need to succeed.

Trusted by Startups and Enterprises

From top startups to global enterprises, AssemblyAI supports companies looking to integrate speech capabilities into their products. The platform handles more than 600 million inference calls monthly, processing over 3.5 million audio files each day. Its robust infrastructure ensures performance, reliability, and scalability.

Key Capabilities of AssemblyAI

Advanced Diarization and Language Detection

AssemblyAI goes beyond basic transcription by offering advanced speaker diarization, allowing developers to identify individual speakers in multi-party conversations. Additionally, its automatic language detection ensures accurate results even in multilingual environments, making it suitable for global use cases.

Intelligent Audio Features

The platform enables deeper understanding of voice data through features like automatic formatting, alphanumeric recognition, and the detection of sensitive information (PII). These enhancements improve transcript clarity and usability, transforming raw audio into meaningful insights.

How AssemblyAI Works

Developer-First API

AssemblyAI is built with developers in mind. Its clean, well-documented API supports fast integration and is compatible with popular programming languages. The platform also offers SDKs and tools for real-time streaming transcription, making it easy to build responsive voice applications.

No-Code Playground and Live Testing

For those looking to explore without writing code, AssemblyAI’s no-code Playground allows users to test transcription models and features directly in the browser. This helps teams evaluate accuracy and functionality before committing to integration.

Speech AI for Business Impact

Enhanced Customer Interactions

Businesses leveraging AssemblyAI often report higher customer satisfaction, increased conversion rates, and reduced support ticket volumes. Accurate transcriptions enable better analytics, sentiment detection, and more informed decision-making in sales and support teams.

Scalable for Enterprise Needs

With security-first architecture and support for enterprise-grade protections, AssemblyAI is built to meet the compliance and privacy requirements of large organizations. Custom volume pricing and dedicated support make it a smart choice for scalable implementation.

Constant Innovation and Research

Industry-Leading Accuracy

AssemblyAI continuously refines its speech models to maintain the lowest Word Error Rate (WER) in the industry. Its latest models also demonstrate significantly fewer hallucinations and higher user preference ratings compared to competitors.

Research-Driven Development

Backed by an expert research team, AssemblyAI is at the forefront of speech technology advancements. Weekly feature releases ensure customers have access to the latest capabilities without additional integration overhead.

Use Cases for AssemblyAI

Conversation Intelligence

From analyzing sales calls to supporting virtual assistants, AssemblyAI empowers conversation intelligence platforms with real-time transcription, speaker insights, and deep analysis of audio content.

Product Enhancement with Voice Data

Developers use AssemblyAI to add voice search, video/audio summarization, and automated note-taking to their apps. This adds functionality that enhances user engagement and productivity across industries.

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