IBM Watson Speech to Text vs Picovoice Leopard
IBM Watson Speech to Text
ibm.comPicovoice Leopard
picovoice.aiSide by side
| Figure | IBM Watson Speech to Text | Picovoice Leopard |
|---|---|---|
| Price from | $0.02/mo | — |
| Free plan | Yes | — |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | — | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 5 | 1 |
| Spec score · AI transcription tools | 9.0 (#6) | 8.2 (#25) |
| Spec score · Transcription Software | 8.7 (#11) | 8.4 (#21) |
| Spec score · Speech Recognition Software | 8.7 (#11) | 8.4 (#18) |
| API access | Yes | Yes |
| Customization | Paid plans can customize language and acoustic models, and language models can use grammars to restrict recognized phrases. | Picovoice Console lets users add custom vocabulary, specify IPA pronunciations, and boost frequent words and phrases in speech-to-text models. |
| Free plan | Yes | No |
| Integrations | IBM documents a pre-built phone assistant integration combining watsonx Assistant, Speech to Text, and Watson Text to Speech. | Picovoice provides Leopard SDK quick starts for Android, C, .NET, Flutter, iOS, Java, Linux, macOS, Node.js, Python, Raspberry Pi, React, React Native, web, and Windows. |
| Intended users | IBM identifies customer self-service, agent assistance, and call analytics as use cases, and describes Plus as intended for small businesses and development or testing by larger enterprises. | Picovoice describes itself as a B2B company focused on on-device AI tools for enterprises and says it has no dedicated plans for personal or non-commercial use. |
| Security | Premium offers data isolation and features including Key Protect, service endpoints, mutual authentication, and HIPAA readiness. | Picovoice says end-user inputs and generated outputs remain on-device and are not transmitted to, stored by, or accessible to Picovoice or its service providers. |
| Speaker identification | Yes | Yes |
| Timestamp support | Yes | Yes |
| What it does | The service uses speech recognition APIs to transcribe spoken audio in multiple languages and formats. | Leopard is an on-device speech-to-text engine for transcribing audio recordings. |
Plans
IBM Watson Speech to Text
- LitePriced on request
- Plus$0.02 a month
- PlusPriced on request
- LiteFree
- PremiumPriced on request
In their own words
IBM Watson Speech to Text
IBM Watson Speech to Text has no write-up on Specifiction yet; its figures are above.
Picovoice Leopard
Picovoice Leopard is an on-device speech-to-text engine for transcribing recordings, including interviews, meetings, calls, podcasts, voicemails, and video files. Picovoice says audio inputs and generated transcripts stay on the device and are not transmitted to, stored by, or accessible to the company or its service providers. Transcripts can include word-level start and end times, confidence scores, and speaker tags. Developers can use Picovoice Console to add custom vocabulary and raise the likelihood of selected words or phrases.
The listed languages are English, French, German, Italian, Japanese, Korean, Portuguese, and Spanish. Platforms include Android, iOS, Linux, macOS, Windows, web, and Raspberry Pi, with SDK quick starts for these and additional frameworks and languages. Use requires a Picovoice AccessKey, which verifies authorization and account limits; usage is measured by audio processed per second and resets every 30 days. Leopard does not support real-time transcription. Pricing is on request. The 7-day trial costs 0.00 USD, includes all Picovoice products, and requires no credit card.