text-to-audio
Inworld 1.5 Mini delivers high-quality text-to-speech synthesis with 56+ multilingual voices, adjustable speaking rate, and natural-sounding audio output. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing.
Idle
Ihre Anfrage kostet $0.005 pro Durchlauf.
Für $1 können Sie dieses Modell ungefähr 200 Mal ausführen.
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README
Inworld 1.5 Mini Text-to-Speech
Inworld 1.5 Mini is a lightweight, ultra-affordable text-to-speech model that converts written text into natural speech. It offers the same voice selection, speaking rate, and expressiveness controls as the Max model — at half the cost. Perfect for high-volume workflows, prototyping, and budget-conscious production.
- Need higher quality? Try Inworld 1.5 Max Text-to-Speech
Why Choose This?
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Ultra-low cost Just $0.005 per 1,000 characters — the most affordable option for text-to-speech at scale.
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Voice selection Choose from a library of distinct voice identities to match your brand, character, or use case.
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Speaking rate control Adjust the speed of speech to suit narration, dialogue, announcements, or any delivery style.
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Temperature control Fine-tune expressiveness — lower values for consistent delivery; higher values for more dynamic, varied speech.
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Fast processing Lightweight architecture delivers quick turnaround, ideal for real-time or high-volume pipelines.
Parameters
| Parameter | Required | Description |
|---|---|---|
| text | Yes | The text content to convert to speech |
| voice_id | No | Voice preset to use (e.g., Hades) |
| speaking_rate | No | Speed of speech (default: 1) |
| temperature | No | Expressiveness level (default: 1) |
How to Use
- Enter your text — type or paste the content you want converted to speech.
- Select a voice — choose a voice preset from the voice_id dropdown.
- Adjust speaking rate — slide to control how fast or slow the speech is delivered.
- Adjust temperature — slide to control the expressiveness and variation in delivery.
- Run — submit and download the generated audio.
Pricing
| Characters | Cost |
|---|---|
| Up to 1,000 | $0.005 |
| Up to 2,000 | $0.010 |
| Up to 5,000 | $0.025 |
| Up to 10,000 | $0.050 |
Billing Rules
- Rate: $0.005 per 1,000 characters
- Rounding: character count is rounded up to the next 1,000
Best Use Cases
- High-Volume Production — Generate large batches of audio at minimal cost.
- Prototyping & Testing — Quickly preview voiceovers before committing to final production.
- Chatbots & Virtual Assistants — Add voice output to conversational AI at scale.
- Content Accessibility — Convert written content to audio affordably for wider audiences.
- Game & App Dialogue — Generate character voice lines for interactive experiences on a budget.
Pro Tips
- Use Mini for drafting and iteration, then switch to Max for final production if higher quality is needed.
- Keep speaking_rate around 1 for natural pacing; adjust lower for dramatic reads, higher for quick announcements.
- Lower temperature gives more predictable, consistent output — great for automated systems.
- Break long texts into logical paragraphs for better pacing and natural pauses.
Notes
- Text is the only required field.
- Billing is based on character count, rounded up to the nearest 1,000.
- For maximum voice quality, consider Inworld 1.5 Max.