Chatterbox TTS vs NVIDIA Riva
Chatterbox TTS
github.com
NVIDIA Riva
developer.nvidia.comSide by side
| Figure | Chatterbox TTS | NVIDIA Riva |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | Yes | — |
| Web | — | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 2 | 4 |
| Spec score · AI voice generators | 9.0 (#2) | 8.4 (#13) |
| Company founding | Resemble says Zohaib Ahmed and Saqib Muhammad started the company in 2019. | NVIDIA was founded on April 5, 1993 by Jensen Huang, Chris Malachowsky and Curtis Priem. |
| Documentation depth | The repository includes model selection tables, Python examples, language identifiers, watermark extraction code, tuning guidance and evaluation links. | The documentation hub includes installation, Python and command-line clients, sample apps, model references, gRPC and Protocol Buffers, troubleshooting and upgrade guidance. |
| Founded | 2019 | 1993 |
| Self-hosting | Chatterbox is run locally and does not require an account when installed from the open-source project, according to an independent technical guide. | The Quick Start workflow lets operators download models, initialize containers and run Riva locally with Docker. |
| What it does | Chatterbox is Resemble AI’s open-source family of text-to-speech and voice-cloning models. | NVIDIA Riva is a GPU-accelerated collection of multilingual speech and translation microservices for real-time conversational AI. |
Plans
Chatterbox TTS
- Chatterbox open-source modelsFree
- Voice AI Research (Chatterbox)Free
NVIDIA Riva
- NVIDIA AI Enterprise trialFree
- NVIDIA API CatalogFree
- NVIDIA Riva on Google Cloud VMIPriced on request
- NVIDIA Riva EnterprisePriced on request
In their own words
Chatterbox TTS
Chatterbox TTS is a family of open-source text-to-speech models from Resemble AI. Its listed choices include Turbo, Nano, Multilingual V3, and dedicated single-language models. Turbo supports tags that can prompt reactions such as sighs, gasps, coughs, and laughter; Nano is intended for on-device or CPU use when memory and latency budgets are tight. The README lists 23 languages for Multilingual. The project supports voice cloning, audio input, batch processing, voice isolation, and WAV export. Generated audio carries Resemble AI’s PerTh watermark. The repository is MIT licensed, and its listed plan costs nothing for research and development. Resemble says it has stopped offering voice generation as a commercial product, while its models remain open and free for research and development. The README provides pip and source installation instructions and describes Python 3.11 on Debian 11, with CUDA, CPU, and MPS device options. Listed platforms are Linux, macOS, and self-hosted.
NVIDIA Riva
NVIDIA Riva has no write-up on Specifiction yet; its figures are above.