Deepgram vs Vapi

Side-by-side comparison of Deepgram and Vapi: pricing, features, API access, and community ratings.

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Deepgram
Deepgram

The most accurate and cost-effective real-time APIs for speech-to-text, text-to-speech, and voice agents

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Vapi
Vapi

Voice agents for builders

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Category
Voice & speech
Voice & speech
Pricing
Freemium
Freemium
Starting price
USD 29/mo
Free tier
Audience
All audiences
All audiences
API available
Open source
Self-hostable
Model provider
Deepgram
OpenAI (intelligence), Deepgram (transcriber), ElevenLabs (voice)
Founded
2015
2023
Headquarters
San Francisco, USA
Key strengths
  • ·Real-time speech-to-text with ultra-low latency
  • ·Conversation-aware TTS with turn-taking and interruption handling
  • ·Unified Voice Agent API (STT + TTS + LLM orchestration in one call)
  • ·Self-hosted deployment option
  • ·Sub-500ms average latency
  • ·SOC 2, HIPAA, and PCI compliance
  • ·99.9% uptime for enterprise clients
  • ·Scalable to millions of calls