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  1. Collection
  2. Text to Speech
  3. Tts 1.5 Max

Explore voices to match your need

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Clone Your Voice

Experience instant voice magic with just 10 seconds of audio input!

Pirate Captain
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Greedy Goblin
Greedy Goblin
Southern Belle
Southern Belle

Voice Design

Create Any Voice You Can Imagine - From Simple Text Description

TTS 1.5 Max: Fast AI Voiceovers in 15 Languages

TTS 1.5 Max turns written text into natural-sounding speech with under 200 milliseconds of latency. Whether you need a voiceover for a product video, a narration for a podcast episode, or spoken audio for an app, this model handles it without requiring a recording session or a professional voice actor. You control emotion through simple markup tags in your text, so a line tagged [happy] sounds noticeably warmer than one tagged [sad]. The model supports 15 languages, outputs in MP3, WAV, OGG, or FLAC, and lets you choose from preset voices or supply a custom cloned voice ID. You can also adjust speaking speed and temperature to make the delivery more expressive or more precise. In practice, TTS 1.5 Max fits neatly into content workflows that previously required editing software or a recording studio. Paste your script, pick a voice and language, and download a clean audio file in seconds. It is especially useful for creators who need to produce audio at volume without scheduling time in a booth.

Official

Inworld

49.8k runs

Tts 1.5 Max

2026-03-10

Commercial Use

TTS 1.5 Max: Fast AI Voiceovers in 15 Languages

Table of contents

  • Overview
  • How It Works
  • Frequently Asked Questions
  • Credit Cost
  • Features
  • Use Cases
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Overview

TTS 1.5 Max converts written text into natural-sounding speech with under 200ms latency, making it one of the fastest synthesis options available on Picasso IA. Whether you're a content creator dubbing a script, a podcaster filling narration gaps, or a product team testing voice UI copy, you get high-quality audio without a long render wait. It supports 15 languages, emotion tags embedded directly in your text, and multiple output formats suited for different production needs. You type, you configure, and your file is ready almost immediately.

How It Works

  • Paste or type your text (up to 2,000 characters) into the input field; insert emotion tags like [happy] or [sad] inline to shape how the voice delivers specific lines.
  • Choose a preset voice from the available roster, or enter a custom cloned voice ID if you have one set up.
  • Select your audio format (MP3, WAV, OGG Opus, or FLAC) and sample rate to match your project's technical requirements.
  • Adjust speaking rate and temperature if you want faster delivery or a more expressive, varied read.
  • Hit generate. The model returns your audio file in under 200 milliseconds, ready to download.

Frequently Asked Questions

Do I need programming skills or technical knowledge to use this? No, just open TTS 1.5 Max on Picasso IA, adjust the settings you want, and hit generate.

Is it free to try? You can run TTS 1.5 Max without a paid subscription to test the output quality. Check the current credit terms on the platform for details on how many free runs are included.

How long does it take to get results? The model targets under 200ms latency, so your audio is typically ready almost instantly after submitting. Longer texts may take a moment more, but results come back in seconds, not minutes.

What output formats are supported? You can export your audio as MP3, WAV, OGG Opus, or FLAC. MP3 works for most web and social contexts; WAV and FLAC are preferable for editing workflows that require lossless files.

Can I control the emotion or pace of the voice? Yes. Add emotion keywords in square brackets, like [happy] or [nervous], inside your text to change the vocal tone at that point. Use the speaking rate control to slow down or speed up delivery, and the temperature setting to increase or reduce expressive variation.

How many languages does it support? TTS 1.5 Max covers 15 languages, so you can produce voiceovers for international audiences without switching to a different tool or re-recording with a different speaker.

Where can I use the audio files I generate? The downloaded files are yours to use in videos, podcasts, apps, e-learning courses, or any other project. No watermarks are added to the output.

Credit Cost

Each generation consumes 1 credit

1 credit

or 5 credits for 5 generations

Features

Everything this model can do for you

Sub-200ms latency

Delivers finished audio in under 200 milliseconds, making it viable for real-time and near-real-time applications.

Emotion markup

Control the emotional tone of each sentence using inline tags like [happy] or [sad] directly inside your script.

15-language support

Synthesize speech in 15 different languages from the same interface without switching models.

Multiple output formats

Download audio as MP3, WAV, OGG Opus, or FLAC to match your project's technical requirements.

Adjustable speaking rate

Speed up or slow down delivery with a simple multiplier to match your pacing needs.

Custom voice support

Use a preset voice by name or supply a custom cloned voice ID for consistent brand narration.

Text normalization

Automatically expand numbers, dates, and abbreviations into spoken form, or disable it to read text exactly as written.

SSML break support

Insert precise pauses anywhere in your script using standard break tags for natural-sounding rhythm.

Use Cases

Record a polished voiceover for a YouTube or social media video by pasting your script and choosing a voice that matches your brand tone

Add spoken narration to a presentation or explainer by converting slide text into audio, with natural pauses inserted using break tags

Generate audio in multiple languages from the same source script, useful for localizing a product demo or tutorial without re-recording

Produce an audiobook chapter or podcast intro by writing your script with emotion tags to shape how the voice delivers each line

Create voice responses for a chatbot or virtual assistant using low-latency audio output that sounds natural in real-time conversations

Test different voice styles and speaking rates on the same script to find the best delivery before committing to a final production

Build accessibility features into a web page or app by converting article content into clear, listenable audio on demand

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