# Deepgram vs whisper.cpp

| Attribute | Deepgram | whisper.cpp |
|---|---|---|
| **vioscaleAI score** | 61.9 (55% (medium)) | 57.7 (34% (low)) |
| activity.commits_last_30d | - | 100 |
| adoption.dependent_repos | - | 18 |
| adoption.github_stars | - | 54,417 |
| content.faq | `[{"answer":"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. It is indexed under Speech To Text.","source":"https://deepgram.com/pricing","question":"What is Deepgram?","confidence":0.6},{"answer":"Deepgram does not publish its prices. Pricing is quoted on request, across 2 plans (Pay As You Go and Enterprise), so the figure depends on your seat count and requirements. We record this as a pricing-transparency signal rather than guessing a number. Pricing changes often, so verify at source before relying on it.","source":"https://deepgram.com/pricing","question":"How much does Deepgram cost?","confidence":0.6},{"answer":"Deepgram supports the web and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://deepgram.com/pricing","question":"What platforms does Deepgram support?","confidence":0.6},{"answer":"Yes. Deepgram can be deployed cloud / SaaS and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://deepgram.com/pricing","question":"Can Deepgram be self-hosted?","confidence":0.6},{"answer":"We have confirmed 8 integrations for Deepgram, including Zapier, Genesys, Cisco, Avaya, Nuance, UniMRCP, Y Combinator and TensorFlow.js. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://deepgram.com/pricing","question":"What does Deepgram integrate with?","confidence":0.6},{"answer":"We have independently confirmed SOC 2, HIPAA and GDPR for Deepgram. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Deepgram not holding them. Always confirm compliance directly before you rely on it.","source":"https://deepgram.com/learn/compliance-monitoring-for-call-centers","question":"What security certifications does Deepgram have?","confidence":0.7},{"answer":"Deepgram is available worldwide. Its primary markets are the United States, the United Kingdom and the EU.","source":"https://deepgram.com/pricing","question":"Where is Deepgram available?","confidence":0.75}]` | `[{"answer":"An open-source library that provides speech-to-text transcription capabilities, ported from OpenAI's Whisper model. It supports various hardware accelerators and runs on multiple platforms with a command-line interface. It is indexed under Speech To Text.","source":"https://github.com/pricing","question":"What is whisper.cpp?","confidence":0.6},{"answer":"whisper.cpp is open source, so it can be self-hosted and used at no licence cost. It is released under the MIT licence. Pricing changes often, so verify at source before relying on it.","source":"https://github.com/pricing","question":"Is whisper.cpp free to use?","confidence":0.6},{"answer":"whisper.cpp supports macOS, Linux, iOS, Android and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://github.com/pricing","question":"What platforms does whisper.cpp support?","confidence":0.6},{"answer":"Yes. whisper.cpp can be deployed self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://github.com/pricing","question":"Can whisper.cpp be self-hosted?","confidence":0.6},{"answer":"Yes. whisper.cpp is published under the MIT licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/ggerganov/whisper.cpp","question":"Is whisper.cpp open source?","confidence":0.95}]` |
| deployment.options | `{"cloud":true,"on_prem":true,"self_hosted":true}` | `{"on_prem":true,"self_hosted":true}` |
| description.long | 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. | An open-source C/C++ implementation that brings OpenAI's Whisper speech recognition to local devices. It executes entirely offline without network connectivity and integrates into various hardware platforms from mobile to specialized computing systems. |
| features.capabilities | `{"fine_tuning":true,"pii_redaction":true,"vertical_model":true,"custom_vocabulary":true,"real_time_streaming":true,"speaker_diarization":true,"punctuation_formatting":true}` | `{"open_source":true,"word_timestamps":true,"offline_on_device":true}` |
| integrations.count | 6 | - |
| integrations.list | `[{"name":"Zapier"},{"name":"Genesys"},{"name":"Cisco"},{"name":"Avaya"},{"name":"Nuance"},{"name":"UniMRCP"},{"name":"Y Combinator"},{"name":"TensorFlow.js","native":false,"category":"ml_framework"},{"name":"AudioCodes VoiceAI Connect","native":true,"direction":"bidirectional"}]` | - |
| language.primary | - | C++ |
| license.spdx | - | MIT |
| market.availability | `{"primaryMarkets":["US"],"availabilityScope":"global","availableCountries":["US","AU"],"notAvailableCountries":[]}` | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true,"web":true}` | `{"cli":true,"ios":true,"linux":true}` |
| pricing | `{"type":"usage","plans":[{"free":false,"name":"Pay As You Go","summary":"From $0.0042/min STT or $0.045/1k chars TTS. Free $200 credit included.","features":["Real-time and batch processing","45+ languages","Speaker diarization","PII redaction","Smart formatting","Keyterm prompting"],"components":[{"per":{"qty":1,"unit":"minute"},"kind":"metered","unit":"Nova-3 STT","amount":0.0042,"currency":"USD"},{"per":{"qty":1000,"unit":"characters"},"kind":"metered","unit":"Text-to-Speech","amount":0.045,"currency":"USD"},{"per":{"qty":1,"unit":"minute"},"kind":"metered","unit":"Voice Agent API","amount":0.075,"currency":"USD"}],"description":"Usage-based pricing with initial $200 credit","contactSales":false,"includedLimits":{"voice_agent":"up to 45 concurrent","initial_credit":"$200","text_to_speech":"up to 45 concurrent","audio_intelligence":"up to 10 concurrent","speech_to_text_wss":"up to 150 concurrent","speech_to_text_rest":"up to 50 concurrent"}},{"free":false,"name":"Growth","summary":"$4,000+/year","features":["All public model endpoints","Higher concurrency limits"],"commitment":"annual","components":[{"kind":"fixed","amount":4000,"period":"year","currency":"USD"}],"description":"For growing applications with higher concurrency and annual commitment","contactSales":false,"includedLimits":{"voice_agent":"up to 60 concurrent","text_to_speech":"up to 60 concurrent","speech_to_text_wss":"up to 225 concurrent"}},{"free":false,"name":"Enterprise","description":"Custom solutions for large volumes or specialized compliance needs","contactSales":true}],"addOns":[{"name":"Speaker Diarization","components":[{"per":{"qty":1,"unit":"minute"},"kind":"metered","amount":0.002,"currency":"USD"}]},{"name":"PII Redaction","components":[{"per":{"qty":1,"unit":"minute"},"kind":"metered","amount":0.002,"currency":"USD"}]}],"summary":"From $0.0042/min STT. Free $200 credit on signup. Growth plan $4,000+/year with higher limits.","currency":"USD","freeTier":true,"sourceUrl":"https://deepgram.com/pricing","retrievedAt":"2026-09-29T10:48:08.294Z","startingPrice":{"amount":4000,"period":"year","currency":"USD"},"billingPeriods":["month"]}` | `{"type":"open_source","freeTier":true,"sourceUrl":"https://github.com/pricing","retrievedAt":"2026-08-19T21:33:54.410Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | freemium | open_source |
| pricing.price_level | high | free |
| pricing.starting_price | `{"amount":4000,"currency":"USD"}` | - |
| pricing.transparent | yes | yes |
| release.cadence_days | - | 14 |
| release.history | - | `[{"url":"https://github.com/ggml-org/whisper.cpp/releases/tag/v1.9.5","date":"2026-10-06T17:39:17Z","type":"stable","version":"v1.9.5"},{"url":"https://github.com/ggml-org/whisper.cpp/releases/tag/b5454","date":"2026-10-06T16:51:27Z","type":"prerelease","version":"b5454"},{"url":"https://github.com/ggml-org/whisper.cpp/releases/tag/v1.9.4","date":"2026-09-11T05:31:55Z","type":"stable","version":"v1.9.4"},{"url":"https://github.com/ggml-org/whisper.cpp/releases/tag/b5130","date":"2026-09-11T05:29:10Z","type":"prerelease","version":"b5130"},{"url":"https://github.com/ggml-org/whisper.cpp/releases/tag/b5127","date":"2026-09-10T11:55:26Z","type":"prerelease","version":"b5127"},{"url":"https://github.com/ggml-org/whisper.cpp/releases/tag/v1.9.3","date":"2026-08-20T11:39:36Z","type":"prerelease","version":"v1.9.3"},{"url":"https://github.com/ggml-org/whisper.cpp/releases/tag/b4938","date":"2026-08-20T11:33:19Z","type":"stable","version":"b4938"},{"url":"https://github.com/ggml-org/whisper.cpp/releases/tag/v1.9.2","date":"2026-08-04T15:31:37Z","type":"stable","version":"v1.9.2"},{"url":"https://github.com/ggml-org/whisper.cpp/releases/tag/v1.9.1","date":"2026-06-19T05:53:19Z","type":"stable","version":"v1.9.1"},{"url":"https://github.com/ggml-org/whisper.cpp/releases/tag/v1.9.0","date":"2026-06-17T10:19:21Z","type":"stable","version":"v1.9.0"},{"url":"https://github.com/ggml-org/whisper.cpp/releases/tag/v1.8.7","date":"2026-06-16T10:59:32Z","type":"stable","version":"v1.8.7"},{"url":"https://github.com/ggml-org/whisper.cpp/releases/tag/v1.8.6","date":"2026-06-02T06:22:27Z","type":"stable","version":"v1.8.6"},{"url":"https://github.com/ggml-org/whisper.cpp/releases/tag/v1.8.5","date":"2026-05-29T12:07:04Z","type":"stable","version":"v1.8.5"},{"url":"https://github.com/ggml-org/whisper.cpp/releases/tag/v1.8.4","date":"2026-03-19T15:08:38Z","type":"stable","version":"v1.8.4"},{"url":"https://github.com/ggml-org/whisper.cpp/releases/tag/v1.8.3","date":"2026-01-15T11:27:48Z","type":"stable","version":"v1.8.3"},{"url":"https://github.com/ggml-org/whisper.cpp/releases/tag/v1.8.2","date":"2025-10-15T08:32:18Z","type":"stable","version":"v1.8.2"},{"url":"https://github.com/ggml-org/whisper.cpp/releases/tag/v1.8.1","date":"2025-10-12T10:18:45Z","type":"stable","version":"v1.8.1"},{"url":"https://github.com/ggml-org/whisper.cpp/releases/tag/v1.8.0","date":"2025-09-30T18:44:14Z","type":"stable","version":"v1.8.0"},{"url":"https://github.com/ggml-org/whisper.cpp/releases/tag/v1.7.6","date":"2025-06-25T13:50:49Z","type":"stable","version":"v1.7.6"},{"url":"https://github.com/ggml-org/whisper.cpp/releases/tag/v1.7.5","date":"2025-04-02T14:34:08Z","type":"stable","version":"v1.7.5"}]` |
| security.certifications | `[{"name":"SOC 2 Type II","status":"active"},{"name":"SOC 2 Type I","status":"active"},{"name":"GDPR","status":"active"},{"name":"HIPAA","status":"active"},{"name":"PCI DSS","status":"active"},{"name":"CCPA","status":"active"}]` | - |
| security.gdpr | yes | - |
| security.hipaa | yes | - |
| security.pci | yes | - |
| security.scorecard | - | 5.1 |
| security.soc2 | yes | - |
| security.trust_center | https://deepgram.com/learn/python-script-compliance | https://github.com/security |
| security.vulnerabilities | - | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Fggerganov%2Fwhisper.cpp%2Fbindings%2Fgo&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Speech To Text)

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

*Source: vioscaleAI. Generated 2026-10-16T17:47:08.618Z. "-" = undocumented, not absent.*