AI Voice Generator

giz.ai Voice

Design, clone, and direct the voice you need

Voice Design · Voice Cloning · 646 Languages

Generate natural speech with OmniVoice by default, design a voice from attributes, or clone an authorized reference while controlling language, accent, pacing, duration, and delivery with each model’s real inputs.

Voice examples

Real voice directions mapped to live model controls

English narration

See exact generation prompt

Welcome to our AI Voice Generator! This is an example of the text-to-speech conversion. You can customize the voice, speed, and content to create your own unique audio experience. Try it out and bring your words to life!

AI voice generator introductionEnglish narration

Voice design

Describe supported age, gender, accent, timbre, emotion, and delivery attributes instead of hunting through a fixed speaker list.

Authorized voice cloning

Attach a voice you own or have permission to use; supported models expose their actual reference-audio and transcript requirements.

Massively multilingual speech

OmniVoice supports 646 languages, Auto detection, mixed-language text, speed, target duration, and supported nonverbal cues.

Model-native controls

Only the voices, references, language, emotion, speed, duration, and format controls implemented by the selected live model are shown.

Choose a dedicated AI voice model

k2-fsaOmniVoice

AudioFree · 4 uses per 2 hoursAfter allowance · ≈ $0.0055/use

Input → output: text / audio → audio
Released: Apr 1, 2026
Formats: WAV · MP3
Cloning: Zero-shot voice clone · Voice design

Massively multilingual zero-shot TTS with Voice Clone and Voice Design modes, prompt preprocessing, speed, duration, and diffusion controls.

Inworld AIInworld TTS-1.5 Mini

AudioFree · 4 uses per 2 hoursAfter allowance · ≈ $0.005/use

Input → output: text → audio
Released: Jan 21, 2026
Voices: 20+ expressive character voices

Low-latency expressive TTS for responsive characters, assistants, and real-time narration.

xAIxAI Text-to-Speech

AudioFree · 4 uses per 2 hoursAfter allowance · ≈ $0.015/use

Input → output: text → audio
Released: Mar 16, 2026
Voices: 20+ voices · Inline speech tags

Expressive multilingual TTS with named voices and inline tags for pauses, emphasis, and style.

OpenAIOpenAI TTS (Text to Speech)

AudioFree · 4 uses per 2 hoursAfter allowance · ≈ $0.015/use

Input → output: text → audio
Released: Nov 6, 2023
Formats: MP3 · AAC · Opus · FLAC
Voices: 6 voices (Alloy, Shimmer, etc.)

Reliable OpenAI text-to-speech for clear narration, dialogue, and assistant voice output.

HeyGenHeyGen Voice 1.0

Audio≈ $0.033/1K chars

Input → output: text / audio → audio
Released: Oct 22, 2026
Price: ≈ $0.033/1K chars
Formats: MP3 · WAV · FLAC · OGG

Text-to-speech with public voices and instant voice cloning from a single recording

HeyGenHeyGen Voice 1.0 Turbo

Audio≈ $0.0044/1K chars

Input → output: text / audio → audio
Released: Oct 22, 2026
Price: ≈ $0.0044/1K chars
Formats: MP3 · WAV · FLAC · OGG

Faster HeyGen text-to-speech with public voices and instant voice cloning

HeyGenHeyGen Voice 1.0 Turbo Free

AudioUsage based

Input → output: text / audio → audio
Released: Oct 22, 2026
Price: Usage based
Formats: MP3 · WAV · FLAC · OGG

HeyGen Voice Turbo on shared capacity for tests and prototypes

Fish AudioFish Audio S2.1 Pro

Audio≈ $0.0165/1K bytes

Input → output: text → audio
Released: Jun 1, 2026
Price: ≈ $0.0165/1K bytes
Formats: MP3 · WAV · FLAC · OGG

Flagship multilingual text-to-speech with natural language voice control and realtime streaming

Inworld AIInworld Realtime TTS-2

Audio≈ $0.0385/1K chars

Input → output: text → audio
Released: May 5, 2026
Price: ≈ $0.0385/1K chars
Formats: MP3 · WAV · FLAC · OGG

Conversational text-to-speech with realtime voice direction and audio-aware delivery

MiniMaxMiniMax Speech 2.8

Audio≈ $0.066–0.11/1K chars

Input → output: text → audio
Released: Jan 29, 2026
Price: ≈ $0.066–0.11/1K chars
Formats: MP3 · WAV · FLAC · OGG

High-quality text-to-speech with expressive, natural voice synthesis

Inworld AIInworld TTS-1.5 Max

Audio≈ $0.055/1K chars

Input → output: text → audio
Released: Jan 21, 2026
Price: ≈ $0.055/1K chars
Formats: MP3 · WAV · FLAC · OGG

High-fidelity expressive text-to-speech with rich prosody and multilingual support

AlibabaQwen3-TTS 1.7B Base

Audio≈ $0.0165/1K chars

Input → output: text / audio → audio
Released: Jan 1, 2026
Price: ≈ $0.0165/1K chars
Formats: MP3 · WAV · FLAC · OGG

High-quality multilingual text-to-speech with voice cloning and ultra-low latency

AlibabaQwen3-TTS 1.7B CustomVoice

Audio≈ $0.0165/1K chars

Input → output: text → audio
Released: Jan 1, 2026
Price: ≈ $0.0165/1K chars
Formats: MP3 · WAV · FLAC · OGG

Text-to-speech with preset premium timbres and precise style control

AlibabaQwen3-TTS 1.7B VoiceDesign

Audio≈ $0.0165/1K chars

Input → output: text → audio
Released: Jan 1, 2026
Price: ≈ $0.0165/1K chars
Formats: MP3 · WAV · FLAC · OGG

Text-to-speech with voice creation from natural language descriptions

AI modelDia2 2B

Audio≈ $0.00528–0.0391/use

Input → output: text → audio
Released: Nov 19, 2025
Price: ≈ $0.00528–0.0391/use
Formats: MP3 · WAV · FLAC · OGG

Streaming dialogue TTS with voice cloning, non-verbal cues, and multi-speaker support

ByteDanceSeed Audio 1.0

Audio≈ $0.0029/sec

Input → output: text / image / audio → audio
Released: Jun 4, 2024
Price: ≈ $0.0029/sec
Formats: MP3 · WAV · FLAC · OGG

Versatile speech generation model for expressive TTS, voice conversion, and speech editing

AssemblyaiTTS 1

Audio≈ $0.0174/1K chars

Input → output: text → audio
Released: Oct 28, 2026
Price: ≈ $0.0174/1K chars

AssemblyAI TTS 1 is a text-to-speech model from AssemblyAI. It is suited for voice agents, narration, and multilingual applications, and draws on a public library of several thousand voices across...

ElevenLabsEleven Music v2

AudioUsage based

Input → output: text → audio
Released: Oct 27, 2026
Price: Usage based

Music generation from text prompts, billed per second of generated audio.

ElevenLabsEleven Music v2.5

AudioUsage based

Input → output: text → audio
Released: Oct 27, 2026
Price: Usage based

Music generation from text prompts, billed per second of generated audio.

ElevenLabsEleven Sound Effects v2

AudioUsage based

Input → output: text → audio
Released: Oct 27, 2026
Price: Usage based

Sound effects generation from text prompts, billed per second of generated audio.

Model selection guide

Choose a voice model by identity and control

Decide whether you need designed identity, an authorized clone, a fixed speaker, multilingual output, or low latency before choosing a model.

OmniVoice

Best for: Voice design, 646 languages, mixed-language speech, and authorized cloning
Why choose it: One model covers attribute-based identity, reference audio with its transcript, pace, target duration, and nonverbal cues.
Watch for: Broad language coverage does not guarantee native pronunciation for every name, dialect, or recording condition.

OpenAI TTS (Text to Speech)

Best for: Straightforward narration with a stable preset voice
Why choose it: A simple text-to-speech contract is useful when predictable speaker selection matters more than cloning.
Watch for: Preset voices provide less identity control than design or reference-based models.

xAI Text-to-Speech

Best for: Expressive preset speech and conversational delivery
Why choose it: Provides a dedicated live TTS option with its own voice and format contract.
Watch for: Supported voices, languages, and style controls must be read from the current model fields.

Known limits

What AI voice generation cannot guarantee

Consent is mandatory

A technically possible clone is not automatically lawful or ethical. Use only voices you own or have explicit authority to reproduce.

Similarity can drift

Voice identity, accent, age, emotion, and speaking style can vary with language, text, reference quality, and generation settings.

Pronunciation needs review

Names, acronyms, numbers, code-switching, dialects, and specialist terminology should be reviewed by a fluent speaker.

Performance controls vary

Emotion, speed, target duration, nonverbal cues, cloning, and formats are available only when the selected live model exposes them.

Synthetic speech can deceive

Disclose synthetic voices where appropriate and never use generated speech for impersonation, fraud, false endorsement, or misleading evidence.

Made with giz.ai

Voice examples

Browse real voice examples made with giz.ai.

Editorial transparency

How this page was reviewed

Written by giz.ai Product Team · Reviewed by giz.ai Model Operations · Updated 2026-07-16

giz.ai publishes this AI voice generator page about its own product. Model names, inputs, controls, access, and plan requirements come from the live giz.ai catalog; examples and editorial guidance explain practical use without promising flawless output.

Match the AI voice generator default, offered models, and example inputs to active giz.ai model contracts.
Run the public form through model selection, example application, and the canonical Assistant handoff.
Audition identity, pronunciation, pacing, nonverbal cues, and reference behavior across representative languages.
Verify one canonical URL, visible FAQs, structured data, internal links, desktop layout, and mobile layout.

Clear answers

AI voice generator and cloning FAQ

Is OmniVoice the default voice model?

Yes. This page starts with OmniVoice for multilingual voice design and authorized zero-shot cloning. You can select another live voice model when its voices or controls fit the job better.

How does OmniVoice switch between voice design and cloning?

Without reference audio it uses supported voice attributes. Adding an authorized reference recording and its transcript switches it to cloning.

Can I clone any voice?

No. Only use a voice you own or have clear permission to use. Do not impersonate people or create deceptive audio.

Do all voice models support the same controls?

No. Language, reference audio, transcript, emotion, voice, speed, duration, and format come from each live model contract.

Why are music and sound effects not generated here?

This page is specialized for voices. Use the AI Audio Generator hub for all audio workflows, the AI Music Generator for songs and instrumentals, or the sound tools for effects, ambience, Foley, and video audio.

How much reference audio should I upload?

Use the duration and format accepted by the selected model. A clean, single-speaker recording without music, reverb, overlap, or background noise usually gives a more auditable reference.

Can one designed voice speak several languages?

Yes on models that support cross-language generation, but identity and accent can change by language. Review every target language with a fluent speaker.

How should I direct pronunciation and pacing?

Write the exact script, expand ambiguous abbreviations, add punctuation for pauses, select the correct language, and use speed, duration, or instruction fields only when the model exposes them.

Can I use an AI voice commercially?

Commercial suitability depends on consent, source rights, provider terms, disclosures, and the intended use. Keep evidence of authorization and review the final performance.