Whisper or Parakeet: which to choose for business
Both handle Russian, run on a CPU and scale to a single GPU. Whisper is MIT with commercial use allowed, recognizes 99 languages and ranges from 39M to 1.5B. The NVIDIA line includes streaming models for real-time use, ranges from 110M to 2.5B, and supports Russian in Parakeet TDT v3 and Nemotron 3.5 ASR; licenses vary (CC-BY-4.0, NVIDIA Open Model License, OpenMDW), and the first Canary-1B is non-commercial. NVIDIA's latest release is 2026-05, Whisper's is 2025-03.
Comparison based on catalog data
| Parameter | Whisper | NVIDIA Parakeet / Canary / Nemotron Speech |
|---|---|---|
| Category | Speech to text | Speech to text |
| Developer | OpenAI, USA | NVIDIA, USA |
| Releases | Sep 2022 – Mar 2025 | Dec 2023 – May 2026 |
| Sizes | 39M – 1,5B | 110M – 2.5B |
| Hardware | Laptop, 1 GPU | Laptop, 1 GPU |
| Commercial use | Commercial use allowed | Commercial use with conditions |
| License | MIT | Mixed: Parakeet and Canary mostly CC-BY-4.0 (the first Canary-1B is non-commercial), Parakeet Unified and Nemotron Speech Streaming under the NVIDIA Open Model License, Nemotron 3.5 ASR under OpenMDW |
| Russian | Supported | Supported |
| Ollama | No | No |
| Without GPU | Yes | Yes |
| Tasks |
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Choose Whisper if
- You want one simple MIT license across all versions
- Your recordings are in many languages: Whisper covers 99
- You need the smallest model, from 39M
Choose NVIDIA Parakeet / Canary / Nemotron Speech if
- You need real-time voice input: streaming versions are available
- You are building a voice bot where streaming transcription matters
- You want a current line-up with 2026 releases
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