tools
Deepgram
Deepgram provides APIs for speech-to-text, text-to-speech, voice agents, and audio analysis.
Deepgram is a developer platform for processing speech and building voice applications. Its APIs support real-time and batch transcription, speech synthesis, conversational voice agents, and audio analysis.
Developers, product teams, contact centers, and enterprises use it for transcription, voice interfaces, call analysis, and conversational systems. Usage is billed by audio, characters, tokens, or agent minutes; enterprise deployments and custom models require contacting sales.
Features
- Real-time and pre-recorded speech-to-text APIs
- Text-to-speech with Flux TTS, Aura-2, and Aura-1
- Voice Agent API with turn detection and interruption handling
- Audio Intelligence for summarization and conversation analysis
- Speaker diarization, redaction, keyterm prompting, and smart formatting
- Custom speech-to-text models for proprietary datasets
- Self-hosted and private-cloud deployment options
Use cases
- Transcribe live calls, meetings, podcasts, and recorded audio
- Build conversational voice assistants and customer-service agents
- Generate spoken responses for voice applications
- Analyze conversations for summaries, entities, sentiment, and intent
- Add speech recognition to contact-center and business workflows
Pros
Cons
Latest updates
- Verify Callback Requests with Basic Auth or Extra Metadata
The dg-token header is no longer supported; switch to Basic Auth or use a secret passed with Extra Metadata for Speech-to-Text.
- Nova-3 Multilingual Expands to 55 Languages and Adds Language Hinting
model=nova-3&language=multi now transcribes 55 languages with a single model.
- Japanese Numerals on Multilingual Models
The numerals parameter now formats Japanese on multilingual models.
- Flux TTS Adds 41 Languages and 230 Voices
Flux TTS (/v2/speak) now speaks 41 more languages with 230 voices.
- Deepgram Self-Hosted October 2026 Release (261020) (261020)
Container images released: API 1.192.55, Engine 3.140.1, license proxy 1.11.2, and billing 1.15.1.
Capabilities
- Text to speech — “Converts AI responses into natural-sounding speech.” source
- Speech to text — “Real-time transcription, production accuracy” source
- Many languages — “Conversational speech recognition for real-time voice agents that handle multiple languages within a single conversation” source
- API — “Deepgram unifies speech-to-text, text-to-speech, and LLM orchestration into a single API, reducing complexity, latency, and cost.” source
Get it
Pricing
- Starting price
- $4000/yr
- Prices checked
- 2026-10-26
- Read
- by web search
Pay As You Go
Free
- Free $200 Credit then pay-as-you-go
- No minimums. No expiration. No credit card required.
- All endpoints in public models
- Speech-to-Text: Up to 50 REST / 150 WSS / 5 Whisper Cloud
- Text-to-Speech: Up to 45 REST + WSS
- Voice Agent API: Up to 45 WSS
Growth
- $4K+ / year
- Save up to 20% with pre-paid credits for the year
- Credits redeemed against actual usage
- All endpoints in public models
- Higher concurrency: Speech-to-Text up to 50 REST / 225 WSS / 5 Whisper Cloud; TTS up to 60; Voice Agent up to 60
- Community & Discord support, Standard Uptime SLA
Enterprise
Price on request
- For businesses with large volumes, data or deployment requirements, or support needs
- Contact Sales