Tortoise TTS
tortoise-ttsMulti-voice expressive TTS. Slow but high-quality with strong prosody and natural intonation. Trained for long-form narration use cases.
- Price
- ≈ US$0.0816/run
- Input → output
- Text → Audio
- Developer
- Community
- Updated
- 23 September 2026
Playground
Try Tortoise TTS
No input form
No input form for this model yet
Its inputs are not documented yet. So that no run fails on a wrong input, we don't offer a form here. Pick a comparable model instead.
Examples
- Length: 0:07
Prompt
The expressiveness of autoregressive transformers is literally nuts! I absolutely adore them.
- Length: 0:07
Prompt
The expressiveness of autoregressive transformers is literally nuts! I absolutely adore them.
About Tortoise TTS
Tortoise TTS is a model by Community in the Text-to-speech category. On Railwail, Tortoise TTS costs ≈ US$0.0816 per run.
Pricing
| Typical run (≈ 302 s on T4) | US$0.0816 per run |
|---|---|
| GPU time (T4) | US$0.00027 per GPU second |
- Billed by the GPU time the run actually takes. When the run starts, 3× the typical price is reserved from your balance and settled afterwards.
- 1 credit = US$0.01
Cost calculator
Price calculator
Typical according to the provider: about 302.2 s
Total
US$8.16
816 credits
Per run
US$0.0816 · 8.16 credits
Billed by the actual GPU time; this is an estimate.
API
No verified API example
The inputs of this model are not documented yet.
Specifications
- Model ID
tortoise-tts- Developer
- Community
- Category
- Text-to-speech
- Input
- Text
- Output
- Audio
- Billing
- By usage (tokens or GPU time)
- Catalog entry updated
- 23 September 2026
Tags
- tortoise
- tts
- expressive
- open-source
Use cases
Frequently asked questions
What is Tortoise TTS?
Tortoise TTS is a model by Community in the Text-to-speech category.
How much does Tortoise TTS cost on Railwail?
On Railwail, Tortoise TTS costs ≈ US$0.0816 per run. You are charged for what each request actually uses. Usage is paid from prepaid credits; 1 credit equals US$0.01.
How fast is Tortoise TTS?
There are not enough measured runs of Tortoise TTS on Railwail yet to state a run time. It depends on the input, the settings and the load at the provider.
Is Tortoise TTS better than AudioLDM 2?
That depends on the task. Tortoise TTS (Community) and AudioLDM 2 (Haohe Liu) are both models in the Text-to-speech category. The comparison page shows their prices and specifications side by side.
Compare Tortoise TTS and AudioLDM 2Comparable models
All in this category- AudioLDM 2Haohe Liu
Latent-diffusion model for general-purpose text-to-audio. Generates speech, music, and sound effects with a unified prior.
- Kokoro TTS 82MCommunity
Open-weights 82M-parameter TTS. Punches above its size class on naturalness benchmarks at a fraction of the inference cost of larger models.
- OpenVoice v2Community
MyShell OpenVoice v2. Multilingual zero-shot voice cloning with accurate tone-color reproduction and style/emotion control.
All models through one API
One API key for every model on Railwail. Usage is charged from prepaid credits, 1 credit = US$0.01.