Deepgram

Real-time AI speech-to-text API for developers

Freemium
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API, Web
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AI for DevelopersWritingAI Speech-to-Text

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What is Deepgram?

Deepgram provides a speech-to-text API that converts audio into written text in real time. It's designed for developers who need to add voice recognition to applications, products, or services without building the underlying technology themselves. The API handles various audio formats and languages, making it useful for transcription, voice commands, accessibility features, and voice-based search. Deepgram runs on its own infrastructure rather than relying on larger cloud providers, which can mean lower latency and different pricing considerations. The service operates on a freemium model, allowing developers to test the API before committing to paid usage.

Key features

Real-time transcription

converts spoken audio to text with minimal delay

Multiple language support

handles transcription across various languages and accents

Speaker identification

can detect and label different speakers in audio

Punctuation and formatting

automatically adds punctuation and capitalisation to transcribed text

Custom vocabulary

allows you to add domain-specific terms or proper nouns for more accurate results

Low latency processing

designed to process audio with minimal delay compared to batch alternatives

Pros & cons

Advantages

Free tier lets developers test and prototype without payment
API-first approach means easy integration into existing applications and workflows
Decent accuracy across multiple languages and audio conditions
Pay-as-you-go pricing means you only pay for what you use

Limitations

Accuracy varies depending on audio quality and background noise, as with most speech-to-text services
Smaller company compared to Google or AWS, so fewer resources and potentially less frequent feature updates
Documentation and community support may be more limited than larger competitors