Audio model · from 3 credits
Generate a voice-over with OpenAI TTS HD
OpenAI TTS HD is OpenAI's high-fidelity speech synthesis, with six distinctly charactered voices, from alloy to shimmer, and a four-thousand-character limit per generation. The voices are settled and natural, free of marked synthetic accent, and hold corporate voice-over as well as soft narration. Billed per character, a track costs a few cents. The right reflex: generate the same sentence on two or three voices and decide by ear.
OpenAI TTS HD next to its closest siblings
Figures pulled from the same registry as billing: when a price or a cap changes, this table changes with it.
| OpenAI TTS HD | ElevenLabs Turbo v2.5 | Fish Audio S1 | |
|---|---|---|---|
| Base price | 5 credits / 1,000 characters | 7 credits / 1,000 characters | 3 credits / 1,000 characters |
| Voices | 6 | 21 | – |
| Max prompt | 4,096 characters | 5,000 characters | – |
How to use it on Imaginode
- 1Add a Voice-over node from the toolbar.
- 2Write or wire in the text to read, pick a voice: the price follows the text length.
- 3Generate, listen in the node and download the MP3.
Frequently asked questions
How much does a voice-over generated with OpenAI TTS HD cost?
5 credits per 1,000 characters, about $0.06 (1 credit = $0.012). The exact cost shows before generating, and the MP3 downloads straight from the node.
Which voices does OpenAI TTS HD offer?
6 to choose from, with adjustable playback speed, up to 4,096 characters per generation. The voice-over node produces a downloadable MP3, billed per character.
Can I try OpenAI TTS HD for free?
Yes: signing up grants trial credits, no credit card required. Enough to test OpenAI TTS HD in real conditions before deciding on a plan or a top-up.
Do I need to install anything to use OpenAI TTS HD?
No: OpenAI TTS HD runs server-side, in the browser, mobile included. Imaginode's node canvas wires its renders to the other models (references, camera, styles) with nothing to install.
OpenAI TTS HD at the competition
OpenAI TTS HD or its variants are also available at ElevenLabs. Pricing grid recorded on a given date, sources cited: the comparison details what credit-based billing changes.
Read the Imaginode vs ElevenLabs comparison →
Try OpenAI TTS HD on a real canvas
105 models, one account, credits that work everywhere. The price always shows before you generate.
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ElevenLabs v3
MiniMax Speech 2.8 HD