May 14, 2025

Deepgram is proud to announce the release of Aura-2, our text-to-speech model purpose-built for realtime enterprise use cases.

• Sub-200ms time-to-first-byte (TTFB) latency for real-time conversational interactions
• 0.111x Real-Time Factor (RTF), synthesizing one second of audio in just over 100 milliseconds

• Enterprise-optimized voice catalog with 40+ distinct voices, each designed for specific business contexts

• Tuned for professional and transactional interactions with appropriate tone, pacing, and emphasis

• Superior pronunciation accuracy for domain-specific content:

  • Currency and numerals
  • Dates and timestamps in varied formats
  • Email addresses, passwords, and URLs
  • Complex addresses and location references

• Industry-leading voice clarity rated higher than competitors in customer service scenarios

• Aura-2 is available now via REST and Websocket APIs
• Currently available for use through our hosted offering

For detailed information about Aura-2, please refer to our Developer Documentation.