Text-to-Speech

Convert text to natural-sounding speech

Modelli text-to-speech per app vocali, audiolibri e IVR

I modelli text-to-speech (TTS) trasformano testo scritto in audio parlato dal suono naturale. La categoria copre dal voiceover IVR piatto alla narrazione espressiva per audiolibri fino agli agenti conversazionali in tempo reale che reggono una telefonata. Si ricorre a un modello TTS quando bisogna dare voce a un software — per accessibilità, produzione di contenuti su larga scala o conversational AI.

27 models available

ElevenLabs Multilingual V2

TTSElevenLabs
Popular

ElevenLabs' most natural-sounding TTS model. Supports 29 languages with emotional range.

€1.003.0s
naturalmultilingualpopular

AudioCraft

TTSReplicate

Meta's AudioCraft framework wrapping MusicGen, AudioGen and EnCodec. Unified text-to-audio research toolkit for music and sound effects.

€0.01
metamusic-generationsound-effects

AudioLDM 2

TTSAudioLDM

Latent-diffusion model for general-purpose text-to-audio. Generates speech, music, and sound effects with a unified prior.

€0.01
audioldmmusic-generationdiffusion

Cartesia Sonic

TTSCustom

Cartesia's ultra-low-latency TTS (~90ms TTFB). State-space model with voice cloning support.

Free
cartesiattslow-latency

Edge TTS

TTSCustom

Microsoft Edge neural voices accessed via the open-source edge-tts wrapper. 400+ voices across 100+ locales, suitable for batch generation.

Free
microsoftttsmultilingual

ElevenLabs v3 (alpha)

TTSElevenLabs

ElevenLabs' v3 alpha TTS. Most expressive voice model with audio tags and laughter, higher latency.

Free
elevenlabsttsexpressive

F5-TTS

TTSReplicate

Open-source flow-matching TTS with strong zero-shot voice cloning. Code MIT, weights CC-BY-NC.

Free
f5ttsopen-weights

Kokoro TTS 82M

TTSReplicate

Open-weights 82M-parameter TTS. Punches above its size class on naturalness benchmarks at a fraction of the inference cost of larger models.

€0.002
kokorottsopen-weights

MAGNeT MusicGen

TTSReplicate

Meta MAGNeT non-autoregressive music generator. Up to 7x faster than MusicGen with comparable quality via masked generative transformers.

€0.007
metamusic-generationmagnet

MusicGen Large

TTSMeta

Meta's 3.3B-parameter MusicGen Large. Text-conditioned music generation with single-stage autoregressive transformer, supports melody conditioning.

€0.02
metamusic-generationopen-weights

MusicGen Medium

TTSMeta

Meta MusicGen Medium (1.5B params). Strong quality-to-speed tradeoff for text-to-music with optional melody guidance.

€0.01
metamusic-generationopen-weights

MusicGen Small

TTSMeta

Meta MusicGen Small (300M params). Fast text-to-music generation suitable for prototyping and low-latency demos.

€0.006
metamusic-generationopen-weights

OpenAI TTS-1

TTSOpenAI

OpenAI's text-to-speech model. Six built-in voices with natural intonation.

€0.602.0s
fastaffordable

OpenAI TTS-1 HD

TTSOpenAI

OpenAI's high-definition TTS model. Better quality for production use cases.

€1.204.0s
high-quality

OpenVoice v1

TTSReplicate

MyShell OpenVoice v1. Cross-lingual voice cloning with flexible style control: emotion, accent, rhythm, pauses, and intonation.

€0.004
myshellttsvoice-cloning

OpenVoice v2

TTSReplicate

MyShell OpenVoice v2. Multilingual zero-shot voice cloning with accurate tone-color reproduction and style/emotion control.

€0.004
myshellttsvoice-cloning

Parler-TTS

TTSReplicate

Hugging Face Parler-TTS Mini. Lightweight TTS conditioned on a natural-language style description for fine-grained control over voice characteristics.

€0.003
parlerttshuggingface

Parler-TTS Large

TTSReplicate

Parler-TTS Large v1. 2.2B parameters, natural-language style prompting and improved prosody over the Mini variant.

€0.005
parlerttshuggingface

PlayHT 2.0

TTSCustom

PlayHT's 2.0 generative voice model. Multi-lingual expressive speech synthesis with sub-second latency and high-fidelity voice cloning.

Free
playhtttsvoice-cloning

Riffusion

TTSRiffusion

Stable-Diffusion-based real-time music generator. Operates on spectrogram images then resynthesizes audio, enables seamless transitions and looping.

€0.008
riffusionmusic-generationopen-weights

RVC Voice Conversion

TTSCommunity

Retrieval-based Voice Conversion. Converts a source recording into a target speaker's voice, preserving pitch, prosody and rhythm.

€0.006
rvcvoice-conversionvoice-cloning

Spark TTS

TTSReplicate

Spark efficient TTS with disentangled control over speaker, content and style. Strong cross-lingual zero-shot performance.

€0.004
sparkttsvoice-cloning

Stable Audio 2

TTSUdio

Stability AI's Stable Audio 2.0. Text-to-music up to 3 minutes of full-length, structured tracks at 44.1 kHz.

Free
stabilitymusic-generationpricing-tbd

StyleTTS 2

TTSReplicate

Style-based TTS using diffusion and adversarial training. Human-level naturalness in zero-shot voice synthesis from a 3-5s reference clip.

€0.004
stylettsttsvoice-cloning

Suno Bark

TTSSuno

Suno's text-prompted generative audio model. Speech, music, ambient sound and effects with non-verbal cues like laughter or sighs.

€0.01
sunobarkmusic-generation

Tortoise TTS

TTSCommunity

Multi-voice expressive TTS. Slow but high-quality with strong prosody and natural intonation. Trained for long-form narration use cases.

€0.01
tortoisettsexpressive

XTTS v2

TTSCommunity

Coqui's XTTS v2 multilingual TTS with voice cloning from 6 seconds of reference audio. Supports 17 languages and emotion transfer.

€0.005
coquittsvoice-cloning

Top text-to-speech picks

Hand-picked across four common criteria — resolved against the live catalog so the picks track price and performance changes.

Migliore in assoluto
ElevenLabs Multilingual V2

ElevenLabs' most natural-sounding TTS model. Supports 29 languages with emotional range.

Learn more
Più economico
Cartesia Sonic

Cartesia's ultra-low-latency TTS (~90ms TTFB). State-space model with voice cloning support.

Learn more
Input più lungo
ElevenLabs Multilingual V2

ElevenLabs' most natural-sounding TTS model. Supports 29 languages with emotional range.

Learn more
Più veloce
OpenAI TTS-1

OpenAI's text-to-speech model. Six built-in voices with natural intonation.

Learn more

Il pricing è quasi sempre per carattere o per migliaia di caratteri. Le voci neurali flagship (ElevenLabs V3, Cartesia Sonic, OpenAI TTS-HD) costano circa €0,15-0,30 per mille caratteri; i tier economici stanno sotto €0,02 per mille. Un tipico capitolo breve di audiolibro (3.000 parole, circa 18.000 caratteri) costa €0,30-€5,00 a seconda del tier. Alcuni fornitori addebitano anche per il voice cloning — una tariffa una tantum per impostare una voce personalizzata più la tariffa standard per carattere al momento della sintesi.

Il triangolo di compromessi è naturalezza, latenza e costo. Le voci flagship sono quasi indistinguibili dalla narrazione umana ma hanno tipicamente una latenza al primo byte di 200-600ms, accettabile per sintesi batch ma lenta in chat in tempo reale. Il TTS in streaming (Cartesia, OpenAI Realtime, ElevenLabs Turbo) mantiene la latenza al primo byte sotto i 100ms emettendo l'audio appena viene decodificato il primo fonema. I tier economici girano alla velocità del flagship ma con artefatti robotici udibili nelle frasi lunghe.

Attenzione al controllo della prosodia: anche i migliori modelli ogni tanto sbagliano l'accento di un nome proprio, pronunciano male un acronimo o perdono l'intenzione emotiva nelle frasi lunghe. Usate tag SSML (dove supportati) o spezzate i passaggi lunghi in chunk più brevi con confini di frase espliciti. Per contenuti multilingue, verificate la pronuncia su ogni coppia di lingue prima di rilasciare — alcune voci parlano un inglese perfetto e un tedesco con accento marcato.

Le top picks qui sopra coprono la voce dal suono più naturale, il workhorse più economico, il modello che supporta l'input più lungo e l'opzione di streaming più veloce.

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