whisper.cpp
Run speech transcription offline on any hardware
- Also known as
- whisper-cpp
Available worldwide
What is whisper.cpp?
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.
whisper.cpp pricing
We don't have whisper.cpp's full plan breakdown yet (its pricing page resisted automated reading). Here's what we could confirm. Always check live pricing for exact numbers.
What whisper.cpp does
The capabilities that matter for speech to text, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- Real time streaming
- -
- Speaker diarization
- -
- Custom vocabulary
- -
- Fine tuning
- -
- Word timestamps
- ✓
- Punctuation formatting
- -
- Pii redaction
- -
- Vertical model
- -
- Offline on device
- ✓
- Open source
- ✓
Platform & deployment
Independently observed- CLI
- iOS
- Linux
- On-premise
- Self-hosted
Security & compliance
Known vulnerabilities: 0 (0 in the last 12 months) sourcea count reflects scale & disclosure, not quality
whisper.cpp FAQ
Common questions about whisper.cpp, answered from independent, dated evidence.
What is whisper.cpp?
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
Is whisper.cpp free to use?
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
What platforms does whisper.cpp support?
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
Can whisper.cpp be self-hosted?
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
Is whisper.cpp open source?
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.
whisper.cpp alternatives
Other speech to text we track, ranked by the same independent score.
- AssemblyAIAPI platform for converting audio to text and building voice-powered applicationsmedium · 73%
- SpeechmaticsSpeech recognition API for voice-driven applications and AI assistantsmedium · 54%
- Deepgrammedium · 55%
- faster-whisperA faster, open-source implementation of speech-to-text transcriptionlow · 33%
- Amazon TranscribeConvert spoken audio and video into text using cloud-based automatic speech recognitionlow · 45%
- VoskOpen-source offline speech recognition toolkit for mobile devices and serverslow · 39%
Compare whisper.cpp
Side by side against other speech to text, attribute by attribute, with a source on every value.
The vioscaleAI score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for whisper.cpp, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Development activity | 63 | 0.14 | 8.5 | ✓ |
| Release cadence | 92 | 0.08 | 7.5 | ✓ |
| Capabilities | 58 | 0.08 | 4.6 | ✓ |
| Stars | 89 | 0.05 | 4.2 | ✓ |
| Security score | 51 | 0.05 | 2.8 | ✓ |
| Dependent projects | 21 | 0.05 | 1.2 | ✓ |
| Integrations | 0 | 0.05 | 0.0 | - |
| Security posture | 0 | 0.12 | 0.0 | - |
| Package downloads | 0 | 0.04 | 0.0 | - |
| Developer Q&A activity | 0 | 0.14 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Activity
| Attribute | Value | Evidence |
|---|---|---|
| Commits last 30d | 100 | mediumsource · 2026-10-15 · 65% |
Adoption
Content
| Attribute | Value | Evidence |
|---|---|---|
| Faq | 5 items | mediumsource · 2026-09-10 · 67% |
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | Open source, Word timestamps, Offline on device | mediumsource · 2026-10-15 · 60% |
Language
| Attribute | Value | Evidence |
|---|---|---|
| Primary | C++ | highsource · 2026-10-15 · 90% |
License
| Attribute | Value | Evidence |
|---|---|---|
| Spdx | MIT | highsource · 2026-10-15 · 95% |
Market
| Attribute | Value | Evidence |
|---|---|---|
| Availability | PrimaryMarkets: … · AvailabilityScope: global · AvailableCountries: … · NotAvailableCountries: … | highsource · 2026-09-13 · 75% |
Pricing
Release
Security
| Attribute | Value | Evidence |
|---|---|---|
| Scorecard | 5.1 | highsource · 2026-10-15 · 90% |
| 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 | highsource · 2026-10-15 · 90% |
| Trust center | https://github.com/security | mediumsource · 2026-10-15 · 60% |
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