# AssemblyAI vs Deepgram

**Leader by Vioscale score:** AssemblyAI

| Attribute | AssemblyAI | Deepgram |
|---|---|---|
| **Vioscale score** | 80.2 (60% (medium)) | 68.3 (43% (low)) |
| deployment.options | `{"cloud":true}` | `{"cloud":true,"self_hosted":true}` |
| description.long | A platform providing speech-to-text APIs for both pre-recorded and live audio, voice agent capabilities, and audio analysis features like speaker identification and sentiment analysis. Serves millions of developers with focus on accuracy and scalability. | A platform providing real-time speech-to-text, text-to-speech, and voice agent APIs with native support for understanding turn-taking, interruptions, and multi-speaker scenarios. Supports 45+ languages with features like speaker identification, smart formatting, and keyword recognition for enterprise and developer use cases. |
| integrations.count | 5 | 7 |
| integrations.list | `[{"name":"Semantic Kernel .NET"},{"name":"Vercel AI SDK"},{"name":"OpenAI GPT-5.6 Luna"},{"name":"OpenAI GPT-5.6 Terra"},{"name":"Google Gemini"}]` | `[{"name":"Zapier"},{"name":"Genesys"},{"name":"Cisco"},{"name":"Avaya"},{"name":"Nuance"},{"name":"UniMRCP"},{"name":"Y Combinator"}]` |
| market.availability | `{"primaryMarkets":["US","GB"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"primaryMarkets":["US","GB","EU"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"web":true}` | `{"cli":true,"web":true}` |
| pricing | `{"type":"usage","plans":[{"free":false,"name":"Async Speech-to-Text","summary":"$0.37/hour","components":[{"per":{"qty":1,"unit":"hour"},"kind":"metered","amount":0.37,"currency":"USD"}],"description":"Pre-recorded audio transcription","contactSales":false},{"free":false,"name":"Real-time Speech-to-Text","summary":"$0.47/hour","components":[{"per":{"qty":1,"unit":"hour"},"kind":"metered","amount":0.47,"currency":"USD"}],"description":"Live audio stream transcription","contactSales":false},{"free":false,"name":"Sync Speech-to-Text","summary":"$0.45/hour","components":[{"per":{"qty":1,"unit":"hour"},"kind":"metered","amount":0.45,"currency":"USD"}],"description":"Same-request transcription for short clips","contactSales":false}],"addOns":[{"name":"Speaker Diarization","components":[{"per":{"qty":1,"unit":"hour"},"kind":"metered","amount":0.12,"currency":"USD"}]},{"name":"LLM Prompting","components":[{"per":{"qty":1,"unit":"hour"},"kind":"metered","amount":0.05,"currency":"USD"}]},{"name":"Voice Isolation","components":[{"per":{"qty":1,"unit":"hour"},"kind":"metered","amount":0.1,"currency":"USD"}]},{"name":"SSO","components":[{"kind":"fixed","amount":199,"period":"month","currency":"USD"}]}],"summary":"From $0.37/hour for async transcription. Free tier available.","currency":"USD","freeTier":true,"sourceUrl":"https://www.assemblyai.com/blog/lower-latency-new-pricing","retrievedAt":"2026-08-19T21:32:28.755Z","startingPrice":{"unit":"hour","amount":0.37,"currency":"USD"},"billingPeriods":["month"]}` | `{"type":"usage","plans":[{"free":true,"name":"Pay As You Go","summary":"From $0.0048/min STT, $0.015/1k chars TTS. $200 free credit.","features":["Speech-to-text (45+ languages)","Text-to-speech","Voice Agent API","Speaker diarization","Smart formatting","Entity detection","Automatic language detection","Keyterm prompting","PII redaction"],"commitment":"monthly","components":[{"per":{"qty":1,"unit":"minute"},"kind":"metered","amount":0.0048,"currency":"USD","description":"Nova-3 Monolingual STT (baseline)"},{"per":{"qty":1,"unit":"minute"},"kind":"metered","amount":0.0065,"currency":"USD","description":"Flux English STT"},{"per":{"qty":1000,"unit":"characters"},"kind":"metered","amount":0.015,"currency":"USD","description":"Aura-1 TTS"},{"per":{"qty":1,"unit":"minute"},"kind":"metered","amount":0.056,"currency":"USD","description":"Voice Agent API Standard tier"}],"description":"Metered usage with initial $200 free credit","contactSales":false,"includedLimits":{"initial_credit":"$200"}},{"free":false,"name":"Enterprise","summary":"Custom pricing. Contact sales.","features":["Custom trained models","On-premises or private cloud deployment","Dedicated support","HIPAA Business Associate Agreement","Data Processing Agreement"],"description":"Custom solutions for high volumes, specialized deployment, or compliance requirements","contactSales":true}],"addOns":[{"name":"Redaction","components":[{"per":{"qty":1,"unit":"minute"},"kind":"metered","amount":0.002,"currency":"USD"}]},{"name":"Keyterm Prompting","components":[{"per":{"qty":1,"unit":"minute"},"kind":"metered","amount":0.0013,"currency":"USD"}]},{"name":"Entity Detection"},{"name":"Speaker Diarization"}],"summary":"From $0.0048/min for speech-to-text, $0.015/1k characters for text-to-speech. Free tier with $200 credit.","currency":"USD","freeTier":true,"sourceUrl":"https://deepgram.com/pricing","retrievedAt":"2026-08-19T21:33:14.342Z","billingPeriods":["month"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | freemium | freemium |
| pricing.price_level | low | low |
| pricing.starting_price | `{"amount":0.37,"currency":"USD"}` | - |
| pricing.transparent | yes | yes |
| reliability.sla_pct | 99.9 | - |
| reliability.status_page | yes | - |
| security.disclosure_policy | yes | - |
| security.gdpr | yes | yes |
| security.hipaa | yes | yes |
| security.pci | yes | yes |
| security.soc2 | yes | yes |

## Capabilities (Speech To Text)

| Capability | AssemblyAI | Deepgram |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Real time streaming | - | - |
| Speaker diarization | - | - |
| Custom vocabulary | - | - |
| Fine tuning | - | - |
| Word timestamps | - | - |
| Punctuation formatting | - | - |
| Pii redaction | - | - |
| Vertical model | - | - |
| Offline on device | - | - |
| Open source | - | - |

*Source: Vioscale. Generated 2026-09-01T14:37:13.520Z. "-" = undocumented, not absent.*