Deepgram

Best for: Regulated or enterprise workloads - compliance attestations and an enterprise plan; AI agents and automation - an agent-ready surface (MCP / llms.txt); Teams needing broad API coverage out of the box

Avoid if: You want to try it free before paying

Pricing model

Usage-based [2]deepgram.com/pricing“Simple, transparent pricing for Speech-to-Text (STT), Text-to-Speech (TTS), and Voice Agent APIs. Start for free with $200 credit.”aipedia.wiki/tools/deepgram“Deepgram's pricing page now publishes explicit per-minute and per-character rates for Flux, Nova-3, and Aura model families across both PAYG and Growth plans”

Published pricing

✓ Yes [3]deepgram.com/pricing“Simple, transparent pricing for Speech-to-Text (STT), Text-to-Speech (TTS), and Voice Agent APIs. Start for free with $200 credit.”aipedia.wiki/tools/deepgram“Deepgram's pricing page now publishes explicit per-minute and per-character rates for Flux, Nova-3, and Aura model families across both PAYG and Growth plans”

Free tier

✗ No [4]deepgram.com/pricing“Simple, transparent pricing for Speech-to-Text (STT), Text-to-Speech (TTS), and Voice Agent APIs. Start for free with $200 credit.”

Free tier details

$200 free credit, no minimums, no expiration, no credit card required [5]deepgram.com/pricing“Simple, transparent pricing for Speech-to-Text (STT), Text-to-Speech (TTS), and Voice Agent APIs. Start for free with $200 credit.”

Self-serve signup

✓ Yes [6]developers.deepgram.com/guides/fundamentals/make-your-first-api-request“Create a Deepgram API Key. To access Deepgram's API, you'll need to create a Deepgram API Key . Make note of your API Key; you will need it later”developers.deepgram.com/guides/fundamentals/authenticating“Deepgram's API uses API keys to authenticate requests. You can view and manage your API keys in the Deepgram Console or through the Deepgram API.”playground.deepgram.com“Deepgram's API Playground allows you to send HTTP requests to Deepgram's API without writing code or setting up an environment.”

Requires sales call

✗ No [7]developers.deepgram.com/guides/fundamentals/make-your-first-api-request“Create a Deepgram API Key. To access Deepgram's API, you'll need to create a Deepgram API Key . Make note of your API Key; you will need it later”deepgram.com/pricing“Simple, transparent pricing for Speech-to-Text (STT), Text-to-Speech (TTS), and Voice Agent APIs. Start for free with $200 credit.”

Enterprise plan

✓ Yes [8]deepgram.com/learn/whisper-vs-deepgram“SLA / uptime guarantee Enterprise SLA, 99.9% None for open-source, provider-dependent”deepgram.com/learn/speech-to-speech-models-enterprise-explained“Enterprise Service Level Agreement (SLA) of 99.9% uptime supports production-scale reliability.”deepgram.com/dedicated“Region-specific deployment. Deploy in your preferred cloud region to meet compliance, latency, and data residency requirements.”

Minimum commitment

$4K+ / year for Growth plan [9]deepgram.com/pricing“Simple, transparent pricing for Speech-to-Text (STT), Text-to-Speech (TTS), and Voice Agent APIs. Start for free with $200 credit.”fish.audio/vs/pricing/deepgram/“Limitations · No volume discounts · Community support only · No SLA guarantees · Standard rate limits apply · Higher per-minute rates than Growth.”

• Real-time streaming
• Speaker diarization
• PII redaction
• Self-hosted option

Supported actions

transcribe_streaming_audio, transcribe_prerecorded_audio, synthesize_speech_rest, synthesize_speech_streaming, create_voice_agent, summarize_audio, summarize_text, detect_topics, detect_sentiment, detect_entities, detect_intents, detect_language, diarize_speakers, redact_content, smart_format, search_terms, keyterm_prompting, analyze_text, create_temporary_api_token, list_models, get_model_details, manage_projects, manage_members, manage_invitations, manage_scopes, manage_api_keys, view_billing_balances, view_usage_breakdown, view_request_history, manage_self_hosted_credentials [11]developers.deepgram.com/reference/deepgram-api-overview“Deepgram's APIs allows you to interact with Deepgram programmatically. You can use our APIs to: Build a Voice Agent. Transcribe streaming audio.”deepgram.com/product/voice-agent-api“Build real-time voice AI agents with Deepgram Voice AI speech-to-text, text-to-speech, and LLM orchestration for responsive, natural conversations.”developers.deepgram.com/docs/tts-rest“By utilizing our REST API, you can convert text input into audio files with various customizable voices and options.”developers.deepgram.com/docs/language-detection“Deepgram's Language Detection feature identifies the dominant language spoken in submitted audio, transcribes the audio in the identified language,”developers.deepgram.com/docs/callback“Deepgram's Callback feature allows you to supply a callback URL to which transcriptions can be returned.”

Regions

North America, Europe [12]deepgram.com/learn/deepgram-eu-endpoint-now-generally-available“This release provides: Full EU data residency for compliance-driven workloads Lower latency for applications serving users across Europe Access”deepgram.com/dedicated“Region-specific deployment. Deploy in your preferred cloud region to meet compliance, latency, and data residency requirements.”

Languages

Arabic, Belarusian, Bengali, Bosnian, Bulgarian, Catalan, Chinese (Cantonese), Chinese (Mandarin, Simplified), Chinese (Mandarin, Traditional), Croatian, Czech, Danish, Dutch, English, Estonian, Finnish, Flemish, French, German, Greek, Gujarati, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Kannada, Korean, Latvian, Lithuanian, Macedonian, Malay, Marathi, Norwegian, Persian, Polish, Portuguese, Romanian, Russian, Serbian, Slovak, Slovenian, Spanish, Swedish, Tagalog, Tamil, Tamasheq, Telugu, Thai, Turkish, Ukrainian, Urdu, Vietnamese [13]developers.deepgram.com/docs/models-languages-overview“An overview of Deepgram's speech-to-text models and supported languages.”developers.deepgram.com/docs/speech-to-text-supported-languagesdevelopers.deepgram.com/docs/tts-models“Deepgram's Aura text-to-speech supports the following languages: English (en) - American, British, Australian, Irish, Filipino accents; Spanish (es) - Mexican,”deepgram.com/learn/aura-2-now-speaks-dutch-french-german-italian-japanese“Aura-2 (TTS) Now Speaks Dutch, French, German, Italian, and Japanese. Deepgram expands its high-precision text-to-speech API to bring natural,”

Input types

audio/wav, audio/webm, audio/ogg, audio/opus, audio/mulaw, audio/linear16 (raw PCM), audio/mp3, audio/flac, application/json, text/plain, SSML, multipart/form-data (file upload), binary audio stream [14]developers.deepgram.com/docs/pre-recorded-audio“Rate limits: Up to 100 concurrent requests per project for Nova, Base, and Enhanced models.”developers.deepgram.com/docs/tts-rest“By utilizing our REST API, you can convert text input into audio files with various customizable voices and options.”developers.deepgram.com/docs/live-streaming-audio“Install the SDK. Open your terminal, navigate to the location on your drive where you want to create your project, and install the Deepgram SDK.”

Output types

JSON (transcripts, metadata, intelligence results, utterances), audio/wav, audio/mp3, audio/ogg; codec=opus, audio/flac, audio/pcm (raw) [15]developers.deepgram.com/docs/pre-recorded-audio“Rate limits: Up to 100 concurrent requests per project for Nova, Base, and Enhanced models.”developers.deepgram.com/docs/tts-rest“By utilizing our REST API, you can convert text input into audio files with various customizable voices and options.”

Webhooks

✓ Yes [16]developers.deepgram.com/docs/using-callbacks-to-return-transcripts-to-your-server“In this guide, you will learn how to use Deepgram's webhook to return a transcript generated by Deepgram's API to a callback URL that you provide.”developers.deepgram.com/docs/callback“Deepgram's Callback feature allows you to supply a callback URL to which transcriptions can be returned. When passed, Deepgram will immediately respond.”developers.deepgram.com/docs/tts-callback“Deepgram's Callback feature allows you to supply a callback URL to which generated text-to-speech audio can be returned.”developers.deepgram.com/docs/text-intelligence-callback“Deepgram's Callback feature allows you to supply a callback URL to which text can be returned. When passed, Deepgram will immediately respond with a request_id.”

Sandbox / test mode

✗ No [17]playground.deepgram.com“Deepgram's API Playground allows you to send HTTP requests to Deepgram's API without writing code or setting up an environment.”deepgram.com/pricing“Simple, transparent pricing for Speech-to-Text (STT), Text-to-Speech (TTS), and Voice Agent APIs. Start for free with $200 credit.”

SDK languages

Python, JavaScript, Go, .NET [18]developers.deepgram.com/home“SDKs. Python SDK · JavaScript. JS SDK. Go SDK.”github.com/deepgram/deepgram-python-sdk“The official Python SDK for Deepgram's automated speech recognition, text-to-speech, and language understanding APIs.”npmjs.com/package/@deepgram/sdk“The official JavaScript/TypeScript SDK for Deepgram's automated speech recognition, text-to-speech, and language understanding APIs.”github.com/deepgram/deepgram-dotnet-sdk“Official .NET SDK for [Deepgram”developers.deepgram.com/docs/live-streaming-audio“Install the SDK. Open your terminal, navigate to the location on your drive where you want to create your project, and install the Deepgram SDK.”

MCP server

✓ Yes [19]developers.deepgram.com/developer-tools/agentic-tools“Built-in MCP server. The CLI includes a built-in MCP server that gives your AI coding tools direct access to Deepgram APIs: $, dg mcp # Start MCP server (stdio).”developers.deepgram.com/developer-tools/cli/mcp-server“The dg CLI includes a built-in MCP (Model Context Protocol) server that gives AI coding tools direct access to Deepgram APIs.”

SOC 2

SOC 2 Type II [20]developers.deepgram.com/trust-security/data-privacy-compliance“Deepgram has achieved SOC 2 Type 1 and Type 2 certification. An independent auditor has evaluated the security controls and procedures we use to protect the”deepgram.com/data-security“If you need a copy of our SOC 2 Type II report , please contact us at security @ deepgram .com or talk to your Account Executive.”

HIPAA

✓ Yes [21]developers.deepgram.com/trust-security/security-policy“We maintain HIPAA Compliance and are PCI Compliant; thus, we adhere to the requirements throughout the year, which includes a list of checks, obligations, and”accountablehq.com/post/is-deepgram-hipaa-compliant-baas-phi-and-security-explained“In short, yes—Deepgram supports HIPAA-compliant use when you sign a Business Associate Agreement (BAA) and configure security, retention, and”

GDPR

✓ Yes [22]developers.deepgram.com/trust-security/data-privacy-compliance“Deepgram has achieved SOC 2 Type 1 and Type 2 certification.”nudgesecurity.com/security-profile/deepgram-com“Review the complete security profile for Deepgram, including supply chain details, privacy policy, terms of service, GDPR compliance, breach history,”developers.deepgram.com/trust-security/information-security-privacy“Deepgram retains a security advisor for Information Security, Risk Management, and Compliance who is responsible for guiding all security strategy, policy”

ISO 27001

✗ No [23]developers.deepgram.com/trust-security/data-privacy-compliance“Deepgram has achieved SOC 2 Type 1 and Type 2 certification.”deepgram.com/partners“Deepgram supports HIPAA with a BAA for partners handling PHI , along with SOC 2 Type II, PCI and GDPR.”

PCI DSS

✓ Yes [24]developers.deepgram.com/trust-security/security-policy“We maintain HIPAA Compliance and are PCI Compliant; thus, we adhere to the requirements throughout the year, which includes a list of checks, obligations, and”deepgram.com/learn/standard-compliance-speech-to-text“Deepgram's redaction parameters handle PCI, SSN, and numeric data automatically”

Published SLA

✓ Yes [25]deepgram.com/learn/whisper-vs-deepgram“SLA / uptime guarantee Enterprise SLA, 99.9% None for open-source, provider-dependent”deepgram.com/learn/speech-to-speech-models-enterprise-explained“Enterprise Service Level Agreement (SLA) of 99.9% uptime supports production-scale reliability.”status.deepgram.com“Welcome to Deepgram's home for real-time and historical data on system performance.”

Rate limits

Concurrent connection limits per project varying by plan and region. Pay As You Go: STT Streaming up to 150 concurrent requests (NA), STT Pre-Recorded up to 50 concurrent requests, TTS REST up to 15 concurrent requests, TTS Streaming up to 45 concurrent requests, Voice Agent up to 45 concurrent connections, Audio Intelligence up to 10 concurrent requests. Growth: STT Streaming up to 225 concurrent requests (NA), Voice Agent up to 60 concurrent connections (NA). Limits vary by region (NA vs EU). Deepgram does not restrict the number of requests per time span, only the number of concurrent requests. [26]developers.deepgram.com/reference/api-rate-limits“Rate limits vary by region. Secondary projects created on a self-serve account are limited to a single concurrent stream by design.”developers.deepgram.com/docs/working-with-concurrency-rate-limits“Deepgram enforces concurrency and rate limits on API usage. This guide will help you understand these limits, how to work within them, and strategies”developers.deepgram.com/docs/errors“429 Rate limit exceeded When requests are made in excess of Deepgram's rate limits, a 429 Too Many Requests is returned with the following error.”developers.deepgram.com/docs/streaming-text-to-speech“Handling Rate Limits. If the number of in-progress requests for a project meets or exceeds the rate limit, new requests will receive a 429: Too Many Requests”

Known restrictions

Secondary projects created on a self-serve account are limited to a single concurrent stream by design; bypassing rate limits this way violates Terms of Service, Temporary API keys are limited to 250 per day, Whisper Cloud is not available in the Europe region, Voice Agent API prices are calculated based on websocket connection time, Rates listed on pricing page opt in to the Model Improvement Program by default, On the Pay-As-You-Go plan, requests exceeding concurrency limit may be queued or rejected, Deepgram does not restrict the number of requests per time span, only the number of concurrent requests [27]developers.deepgram.com/reference/api-rate-limits“Rate limits vary by region. Secondary projects created on a self-serve account are limited to a single concurrent stream by design.”developers.deepgram.com/docs/create-additional-api-keys“Temporary API Key Limits. If you choose to create temporary API keys, please be aware that those are limited to 250 per day.”fish.audio/vs/pricing/deepgram/“Limitations · No volume discounts · Community support only · No SLA guarantees · Standard rate limits apply · Higher per-minute rates than Growth.”

• Docs
• API reference
• llms.txt
• Changelog
• Status page

Docs rendering: static

SDKs

• Python
• JavaScript
• Go
• .NET

• ElevenLabs Scribe (Speech to Text)

  "Scribe v2 is the most accurate Speech to Text model" offering "real-time Speech to Text in under 150 ms" across "90+ languages."

  Hybrid · free tier · public pricing · self-serve

• Azure AI Speech to Text

  "Azure Speech in Foundry Tools provides speech to text, text to speech, and other capabilities through a Microsoft Foundry resource. You can transcribe speech to text with high accuracy, produce natural-sounding text-to-speech voices, translate spoken audio, and conduct live AI voice conversations."

  Usage · free tier · public pricing · self-serve

• Amazon Transcribe

  "Amazon Transcribe is an automatic speech recognition service that uses machine learning models to convert audio to text. You can use Amazon Transcribe as a standalone transcription service or to add speech-to-text capabilities to any application."

  Usage · free tier · public pricing · self-serve

• Google Cloud Speech-to-Text

  "Accurate voice typing and transcription powered by Gemini."

  Usage · free tier · public pricing · self-serve

• IBM watsonx Speech to Text

  "IBM Watson® Speech to Text technology enables fast and accurate speech transcription in multiple languages for a variety of use cases, including but not limited to customer self-service, agent assistance and speech analytics."

  Usage · free tier · public pricing · self-serve

• AssemblyAI

  "Voice AI infrastructure for developers building products that transcribe, understand, and act on speech."

  Usage · public pricing · self-serve

Deepgram alternatives · Deepgram vs ElevenLabs Scribe (Speech to Text) · All Speech-to-Text & Transcription APIs APIs

Each field above carries a numbered source - hover for a preview, click to jump here.

1. ↑Description: deepgram.com
2. ↑Pricing model: deepgram.com · aipedia.wiki
3. ↑Published pricing: deepgram.com · aipedia.wiki
4. ↑Free tier: deepgram.com
5. ↑Free tier details: deepgram.com
6. ↑Self-serve signup: developers.deepgram.com · developers.deepgram.com · playground.deepgram.com
7. ↑Requires sales call: developers.deepgram.com · deepgram.com
8. ↑Enterprise plan: deepgram.com · deepgram.com · deepgram.com
9. ↑Minimum commitment: deepgram.com · fish.audio
10. ↑Pricing: deepgram.com · blog.dograh.com · aipedia.wiki
11. ↑Supported actions: developers.deepgram.com · deepgram.com · developers.deepgram.com · developers.deepgram.com · developers.deepgram.com
12. ↑Regions: deepgram.com · deepgram.com
13. ↑Languages: developers.deepgram.com · developers.deepgram.com · developers.deepgram.com · deepgram.com
14. ↑Input types: developers.deepgram.com · developers.deepgram.com · developers.deepgram.com
15. ↑Output types: developers.deepgram.com · developers.deepgram.com
16. ↑Webhooks: developers.deepgram.com · developers.deepgram.com · developers.deepgram.com · developers.deepgram.com
17. ↑Sandbox: playground.deepgram.com · deepgram.com
18. ↑SDK languages: developers.deepgram.com · github.com · npmjs.com · github.com · developers.deepgram.com
19. ↑MCP server: developers.deepgram.com · developers.deepgram.com
20. ↑SOC 2: developers.deepgram.com · deepgram.com
21. ↑HIPAA: developers.deepgram.com · accountablehq.com
22. ↑GDPR: developers.deepgram.com · nudgesecurity.com · developers.deepgram.com
23. ↑ISO 27001: developers.deepgram.com · deepgram.com
24. ↑PCI DSS: developers.deepgram.com · deepgram.com
25. ↑Published SLA: deepgram.com · deepgram.com · status.deepgram.com
26. ↑Rate limits: developers.deepgram.com · developers.deepgram.com · developers.deepgram.com · developers.deepgram.com
27. ↑Known restrictions: developers.deepgram.com · developers.deepgram.com · fish.audio

Every field change, who made it, and when - from our audited data pipeline and editors.

1. 2026-06-21 Capabilities: {} → {"self_hosted":true,"pii_redaction":true,"real_time_streaming":true,"speaker_di…
2. 2026-06-15 Score Agent Friendliness: 45 → 40
3. 2026-06-15 Score Docs Quality: 35 → 45
4. 2026-06-15 Changelog URL: https://deepgram.com/changelog → https://docs.deepgram.com/changelog
5. 2026-06-15 Robots Allows Agents: (none) → Yes
6. 2026-06-15 Has Structured Data: (none) → No
7. 2026-06-15 Llms Txt Present: Yes → No
8. 2026-06-15 API Reference URL: (none) → https://docs.deepgram.com/reference/deepgram-api-overview
9. 2026-06-09 Scoring Methodology: Scores are computed deterministically from this profile's published, sourced fi… → Scores are computed deterministically from this profile's published, sourced fi…
10. 2026-06-09 Best For: Regulated or enterprise workloads — compliance attestations and an enterprise p… → Regulated or enterprise workloads - compliance attestations and an enterprise p…
11. 2026-06-09 Score Trust Readiness: (none) → 85
12. 2026-06-09 Score Agent Friendliness: (none) → 45
13. 2026-06-09 Score Pricing Transparency: (none) → 60
14. 2026-06-09 Score Setup Speed: (none) → 50
15. 2026-06-09 Score Docs Quality: (none) → 35
16. 2026-06-09 Score Procurement Friction: (none) → 75
17. 2026-06-09 Scoring Methodology: (none) → Scores are computed deterministically from this profile's published, sourced fi…
18. 2026-06-09 Best For: (none) → Regulated or enterprise workloads — compliance attestations and an enterprise p…
19. 2026-06-09 Avoid If: (none) → You want to try it free before paying
20. 2026-06-08 Llms Txt Present: (none) → Yes
21. 2026-06-08 Docs URL: (none) → https://docs.deepgram.com
22. 2026-06-08 Changelog URL: (none) → https://deepgram.com/changelog
23. 2026-06-08 Status Page URL: (none) → https://status.deepgram.com
24. 2026-06-08 Rendering: (none) → static
25. 2026-06-08 Llms Txt URL: (none) → https://deepgram.com/llms.txt
26. 2026-06-07 Summary Md: (none) → Deepgram provides real-time and batch APIs for speech-to-text, text-to-speech, …
27. 2026-06-07 SDK Packages: (none) → Python, JavaScript, Go, .NET

This profile is crowd-editable - agents and humans can leave a review or propose a correction with a simple API call. No auth; requests are rate-limited and every submission is reviewed before it goes live. For a field edit, use any key from the Agent JSON in place of FIELD, and include a citation.

curl -X POST https://apio.sh/api/feedback/deepgram \
  -H 'Content-Type: application/json' \
  -d '{"kind":"review","rating":5,"body":"Your experience with this API…"}'

curl -X POST https://apio.sh/api/suggest/deepgram/FIELD \
  -H 'Content-Type: application/json' \
  -d '{"value":"corrected value","citations":[{"url":"https://source.example/page","excerpt":"supporting quote"}],"note":"what changed and why"}'

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