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Deepgram Speech-to-Text API

Paid

Transcribe calls, meetings, and lectures into text for improved customer support, review, and reference.

New AI ToolsContact
Starting Price
Free
Type
Saas
Founded
2015
Company
Deepgram
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About Deepgram Speech-to-Text API

Deepgram Speech-to-Text API is a powerful tool that uses speech recognition technology to automatically transcribe audio and speech into text. With Deepgram, you can quickly and accurately convert audio and speech into text-based documents, helping you save time and improve productivity. Our API is easy to use and supports many different languages, making it a great choice for global companies or teams who need to transcribe a variety of different audio files. The API is powered by advanced machine learning algorithms which are designed to recognize and understand audio and speech from a range of sources, so you can be sure that the results are accurate and reliable. Deepgram Speech-to-Text API is secure, fast, and cost-effective, allowing you to get the most out of your audio and speech files in a fraction of the time it would take to manually transcribe them.

Key Features

Transcribe customer service calls to provide more efficient customer support.
Automatically generate transcripts of team meetings to review later.
Convert audio recordings of lectures into text documents for easy reference.

Pros & Cons

Pros
  • Industry-leading accuracy with Nova-3 models, especially in noisy and far-field audio
  • Ultra-low latency for real-time conversational use cases
  • Flexible pricing with a free $200 credit and no minimums on pay-as-you-go
  • Support for 45+ languages with automatic language detection
  • Custom model training for proprietary or edge-case vocabulary
  • Comprehensive API suite including STT, TTS, and voice agent capabilities
  • Remote-first company with strong funding ($1.3B valuation) and active development
Cons
  • Pricing per minute can be higher than some competitors for high-volume usage
  • Some advanced features (custom models, higher concurrency) require Enterprise plan with custom pricing
  • No built-in human-in-the-loop editing interface; transcription output is raw API result
  • Limited to audio input; no video or image-based transcription

Best For

Transcribe customer service calls to provide more efficient customer support.Automatically generate transcripts of team meetings to review later.Convert audio recordings of lectures into text documents for easy reference.

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FAQ

What languages does Deepgram support?
Deepgram's Nova-3 models support 45+ languages, including automatic language detection for multilingual audio. The Flux model also supports multilingual conversations (code-switching within a single conversation).
What is the difference between Nova-3 and Flux models?
Nova-3 is designed for highest accuracy in challenging audio (multiple languages, background noise, crosstalk, far-field). Flux is optimized for real-time conversational voice agents with built-in turn detection and natural interruption handling, offering ultra-low latency.
Does Deepgram offer custom models?
Yes, Deepgram provides custom speech-to-text models trained on proprietary or novel datasets for maximum accuracy in edge-case scenarios. Custom model pricing is available by contacting sales.
What are the pricing tiers?
Deepgram offers Pay As You Go (no minimums, $200 free credit) and Growth (pre-paid credits with up to 20% savings, $4K+/year). Enterprise plans are available for large volumes and custom requirements.
Can I transcribe streaming audio in real-time?
Yes, Deepgram supports real-time streaming via WebSocket API with models like Flux and Nova-3. The Flux model is specifically built for real-time conversational speech recognition with turn detection.