# faster-whisper vs Vosk

| Attribute | faster-whisper | Vosk |
|---|---|---|
| **vioscaleAI score** | 51.5 (33% (low)) | 47.5 (39% (low)) |
| activity.commits_last_30d | 7 | 3 |
| adoption.dependent_repos | 35 | 183 |
| adoption.github_stars | 25,877 | 15,174 |
| content.faq | `[{"answer":"An open-source implementation of speech recognition that accelerates transcription using optimized machine learning inference, with support for multiple platforms and container deployment. It is indexed under Speech To Text.","source":"https://github.com/pricing","question":"What is faster-whisper?","confidence":0.6},{"answer":"faster-whisper 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 faster-whisper free to use?","confidence":0.6},{"answer":"faster-whisper supports Windows, macOS, Linux 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 faster-whisper support?","confidence":0.6},{"answer":"Yes. faster-whisper can be deployed self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://github.com/pricing","question":"Can faster-whisper be self-hosted?","confidence":0.6},{"answer":"We have confirmed 8 integrations for faster-whisper, including OpenAI API, OpenAI SDK, OpenAI CLI, HomeAssistant, Konele, Docker, AzureML and FastAPI. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://github.com/pricing","question":"What does faster-whisper integrate with?","confidence":0.6},{"answer":"Yes. faster-whisper 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/SYSTRAN/faster-whisper","question":"Is faster-whisper open source?","confidence":0.95}]` | `[{"answer":"Vosk enables voice-to-text conversion that runs locally without internet connectivity, supporting over 20 language variants with portable models suitable for mobile and embedded systems. It provides real-time streaming capabilities and allows dynamic vocabulary adjustment. It is indexed under Speech To Text.","source":"https://alphacephei.com/vosk/","question":"What is Vosk?","confidence":0.6},{"answer":"Vosk supports Linux, iOS and Android. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://alphacephei.com/vosk/","question":"What platforms does Vosk support?","confidence":0.6},{"answer":"Yes. Vosk can be deployed on-premise and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://alphacephei.com/vosk/","question":"Can Vosk be self-hosted?","confidence":0.6},{"answer":"We have confirmed 18 integrations for Vosk, including Asterisk, Freeswitch, Jigasi, ROS, openFrameworks, Opencast, IBus and GStreamer, plus 10 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://alphacephei.com/vosk/","question":"What does Vosk integrate with?","confidence":0.6},{"answer":"Yes. Vosk is published under the Apache-2.0 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/alphacep/vosk-api","question":"Is Vosk open source?","confidence":0.95}]` |
| deployment.options | `{"on_prem":true,"air_gapped":true,"self_hosted":true}` | `{"self_hosted":true}` |
| description.long | A high-performance implementation of OpenAI's Whisper for converting speech to text, with features for word-level timing and offline processing. | A lightweight speech recognition toolkit that works offline and supports over 20 languages. It provides real-time transcription with small models (50 MB) optimized for devices ranging from Raspberry Pi to large clusters. |
| features.capabilities | `{"fine_tuning":true,"open_source":true,"word_timestamps":true,"offline_on_device":true,"real_time_streaming":true,"speaker_diarization":true}` | `{"open_source":true,"custom_vocabulary":true,"offline_on_device":true,"real_time_streaming":true}` |
| integrations.count | 5 | 18 |
| integrations.list | `[{"name":"OpenAI API"},{"name":"OpenAI SDK"},{"name":"OpenAI CLI"},{"name":"HomeAssistant"},{"name":"Konele"},{"name":"Docker"},{"name":"AzureML"},{"name":"FastAPI"},{"name":"OpenAI SDKs/CLI","native":false},{"name":"pyannote.audio","native":false},{"name":"pyannote.ai","native":false},{"name":"OpenAI SDK/CLI","native":false},{"name":"Azure ML","native":false},{"name":"Transformers library","native":false},{"name":"OpenAI","native":true}]` | `[{"name":"Asterisk"},{"name":"Freeswitch"},{"name":"Jigasi"},{"name":"ROS"},{"name":"openFrameworks"},{"name":"Opencast"},{"name":"IBus"},{"name":"GStreamer"},{"name":"nerd-dictation"},{"name":"dicio-android"},{"name":"openaudiosearch"},{"name":"LVTerminal"},{"name":"Dexter"},{"name":"numenvoice"},{"name":"JustSayIt"},{"name":"OpenVoiceOS"},{"name":"CaptionIt"},{"name":"voice_perception"}]` |
| language.primary | Python | Jupyter Notebook |
| license.spdx | MIT | Apache-2.0 |
| market.availability | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | - |
| platform.support | `{"cli":true,"mac":true,"linux":true,"windows":true}` | `{"ios":true,"linux":true,"android":true}` |
| pricing | `{"type":"open_source","freeTier":true,"sourceUrl":"https://github.com/pricing","retrievedAt":"2026-10-15T20:28:12.642Z"}` | `{"type":"open_source","sourceUrl":"https://alphacephei.com/vosk/","retrievedAt":"2026-10-15T20:28:01.876Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | open_source | open_source |
| pricing.price_level | free | free |
| pricing.transparent | yes | - |
| release.cadence_days | 27 | 51 |
| release.history | `[{"url":"https://github.com/SYSTRAN/faster-whisper/releases/tag/v1.2.1","date":"2025-10-31T11:34:00Z","type":"stable","version":"v1.2.1"},{"url":"https://github.com/SYSTRAN/faster-whisper/releases/tag/v1.2.0","date":"2025-08-06T00:32:35Z","type":"stable","version":"v1.2.0"},{"url":"https://github.com/SYSTRAN/faster-whisper/releases/tag/v1.1.1","date":"2025-01-01T14:45:17Z","type":"stable","version":"v1.1.1"},{"url":"https://github.com/SYSTRAN/faster-whisper/releases/tag/v1.1.0","date":"2024-11-21T17:19:27Z","type":"stable","version":"v1.1.0"},{"url":"https://github.com/SYSTRAN/faster-whisper/releases/tag/v1.0.3","date":"2024-07-01T10:05:08Z","type":"stable","version":"v1.0.3"},{"url":"https://github.com/SYSTRAN/faster-whisper/releases/tag/v1.0.2","date":"2024-05-06T02:08:27Z","type":"stable","version":"v1.0.2"},{"url":"https://github.com/SYSTRAN/faster-whisper/releases/tag/v1.0.1","date":"2024-03-01T10:46:22Z","type":"stable","version":"v1.0.1"},{"url":"https://github.com/SYSTRAN/faster-whisper/releases/tag/v1.0.0","date":"2024-02-22T08:56:53Z","type":"stable","version":"v1.0.0"},{"url":"https://github.com/SYSTRAN/faster-whisper/releases/tag/v0.10.1","date":"2024-02-22T12:08:53Z","type":"stable","version":"v0.10.1"},{"url":"https://github.com/SYSTRAN/faster-whisper/releases/tag/v0.10.0","date":"2024-02-22T11:55:44Z","type":"stable","version":"v0.10.0"},{"url":"https://github.com/SYSTRAN/faster-whisper/releases/tag/v0.9.0","date":"2023-09-18T14:34:26Z","type":"stable","version":"v0.9.0"},{"url":"https://github.com/SYSTRAN/faster-whisper/releases/tag/v0.8.0","date":"2023-09-04T10:01:17Z","type":"stable","version":"v0.8.0"},{"url":"https://github.com/SYSTRAN/faster-whisper/releases/tag/v0.7.1","date":"2023-07-24T09:20:02Z","type":"stable","version":"v0.7.1"},{"url":"https://github.com/SYSTRAN/faster-whisper/releases/tag/v0.7.0","date":"2023-07-18T13:30:31Z","type":"stable","version":"v0.7.0"},{"url":"https://github.com/SYSTRAN/faster-whisper/releases/tag/v0.6.0","date":"2023-05-24T14:22:34Z","type":"stable","version":"v0.6.0"},{"url":"https://github.com/SYSTRAN/faster-whisper/releases/tag/v0.5.1","date":"2023-04-26T15:41:33Z","type":"stable","version":"v0.5.1"},{"url":"https://github.com/SYSTRAN/faster-whisper/releases/tag/v0.5.0","date":"2023-04-25T15:04:48Z","type":"stable","version":"v0.5.0"},{"url":"https://github.com/SYSTRAN/faster-whisper/releases/tag/v0.4.1","date":"2023-04-04T10:58:53Z","type":"stable","version":"v0.4.1"},{"url":"https://github.com/SYSTRAN/faster-whisper/releases/tag/v0.4.0","date":"2023-04-03T15:29:31Z","type":"stable","version":"v0.4.0"},{"url":"https://github.com/SYSTRAN/faster-whisper/releases/tag/v0.3.0","date":"2023-03-24T10:00:28Z","type":"stable","version":"v0.3.0"}]` | `[{"url":"https://github.com/alphacep/vosk-api/releases/tag/v0.3.50","date":"2024-04-22T13:02:41Z","type":"stable","version":"v0.3.50"},{"url":"https://github.com/alphacep/vosk-api/releases/tag/v0.3.45","date":"2022-12-14T23:05:03Z","type":"stable","version":"v0.3.45"},{"url":"https://github.com/alphacep/vosk-api/releases/tag/v0.3.43","date":"2022-07-14T23:22:53Z","type":"stable","version":"v0.3.43"},{"url":"https://github.com/alphacep/vosk-api/releases/tag/v0.3.42","date":"2022-05-26T13:45:56Z","type":"stable","version":"v0.3.42"},{"url":"https://github.com/alphacep/vosk-api/releases/tag/v0.3.38","date":"2022-05-24T12:16:29Z","type":"stable","version":"v0.3.38"},{"url":"https://github.com/alphacep/vosk-api/releases/tag/v0.3.32","date":"2021-10-30T21:57:48Z","type":"stable","version":"v0.3.32"},{"url":"https://github.com/alphacep/vosk-api/releases/tag/v0.3.31","date":"2021-08-31T20:18:14Z","type":"stable","version":"v0.3.31"},{"url":"https://github.com/alphacep/vosk-api/releases/tag/v0.3.30","date":"2021-07-11T07:50:48Z","type":"stable","version":"v0.3.30"},{"url":"https://github.com/alphacep/vosk-api/releases/tag/v0.3.27","date":"2021-05-05T19:48:54Z","type":"stable","version":"v0.3.27"},{"url":"https://github.com/alphacep/vosk-api/releases/tag/0.3.21","date":"2021-02-12T21:51:09Z","type":"stable","version":"0.3.21"},{"url":"https://github.com/alphacep/vosk-api/releases/tag/0.3.18","date":"2021-02-07T22:22:35Z","type":"stable","version":"0.3.18"},{"url":"https://github.com/alphacep/vosk-api/releases/tag/0.3.17","date":"2021-01-09T16:17:11Z","type":"stable","version":"0.3.17"},{"url":"https://github.com/alphacep/vosk-api/releases/tag/0.3.16","date":"2021-01-07T23:24:13Z","type":"stable","version":"0.3.16"},{"url":"https://github.com/alphacep/vosk-api/releases/tag/0.3.15","date":"2020-10-13T00:14:40Z","type":"stable","version":"0.3.15"},{"url":"https://github.com/alphacep/vosk-api/releases/tag/0.3.10","date":"2020-06-29T12:47:05Z","type":"stable","version":"0.3.10"},{"url":"https://github.com/alphacep/vosk-api/releases/tag/0.3.9","date":"2020-06-22T23:35:00Z","type":"stable","version":"0.3.9"},{"url":"https://github.com/alphacep/vosk-api/releases/tag/0.3.7","date":"2020-05-03T19:45:52Z","type":"stable","version":"0.3.7"},{"url":"https://github.com/alphacep/vosk-api/releases/tag/0.3.6","date":"2020-04-28T21:54:36Z","type":"stable","version":"0.3.6"},{"url":"https://github.com/alphacep/vosk-api/releases/tag/0.3.5","date":"2020-04-22T20:30:58Z","type":"stable","version":"0.3.5"},{"url":"https://github.com/alphacep/vosk-api/releases/tag/0.3.3","date":"2020-02-27T14:59:58Z","type":"stable","version":"0.3.3"}]` |
| security.scorecard | - | 3.3 |
| security.trust_center | https://github.com/security | - |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=faster-whisper&per_page=100","last_12m":0,"max_severity":null}` | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=pypi&package_name=vosk&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Speech To Text)

| Capability | faster-whisper | Vosk |
|---|:--:|:--:|
| **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 2026-10-15T23:57:40.529Z. "-" = undocumented, not absent.*