# Deepgram vs whisper.cpp

| Attribute | Deepgram | whisper.cpp |
|---|---|---|
| **Vioscale score** | 68.3 (43% (low)) | 68.8 (24% (low)) |
| activity.commits_last_30d | - | 100 |
| adoption.dependent_repos | - | 18 |
| adoption.github_stars | - | 53,196 |
| deployment.options | `{"cloud":true,"self_hosted":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 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. |
| integrations.count | 7 | - |
| integrations.list | `[{"name":"Zapier"},{"name":"Genesys"},{"name":"Cisco"},{"name":"Avaya"},{"name":"Nuance"},{"name":"UniMRCP"},{"name":"Y Combinator"}]` | - |
| language.primary | - | C++ |
| license.spdx | - | MIT |
| market.availability | `{"primaryMarkets":["US","GB","EU"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true,"web":true}` | `{"cli":true,"ios":true,"mac":true,"linux":true,"android":true}` |
| pricing | `{"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"]}` | `{"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 | commercial |
| pricing.price_level | low | free |
| pricing.transparent | yes | yes |
| release.cadence_days | - | 15 |
| release.history | - | `[{"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"},{"url":"https://github.com/ggml-org/whisper.cpp/releases/tag/b2365","date":"2025-03-31T15:04:32Z","type":"stable","version":"b2365"},{"url":"https://github.com/ggml-org/whisper.cpp/releases/tag/v1.7.4","date":"2025-01-06T13:16:31Z","type":"stable","version":"v1.7.4"},{"url":"https://github.com/ggml-org/whisper.cpp/releases/tag/v1.7.3","date":"2024-12-18T16:15:19Z","type":"stable","version":"v1.7.3"},{"url":"https://github.com/ggml-org/whisper.cpp/releases/tag/v1.7.3-pre","date":"2024-12-09T09:34:50Z","type":"prerelease","version":"v1.7.3-pre"},{"url":"https://github.com/ggml-org/whisper.cpp/releases/tag/v1.7.2","date":"2024-11-19T16:55:56Z","type":"stable","version":"v1.7.2"}]` |
| security.gdpr | yes | - |
| security.hipaa | yes | - |
| security.pci | yes | - |
| security.scorecard | - | 5.1 |
| security.soc2 | yes | - |
| 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: Vioscale. Generated 2026-09-01T16:59:25.567Z. "-" = undocumented, not absent.*