ZONOS2

Paid#19 of 25 in Voice Cloning SoftwareText-to-Speech Software

ZONOS2: A developer-focused voice cloning model with self-hosting, API access, and 34-language support. Ranked #19 of 25 in Voice Cloning Software by our editors (7.2/10); pricing: Paid; best for self-hosted API developers.

7.2/10★★★★☆Editor score

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At a glance

• Editor score
  7.2 / 10
• Pricing
  Paid
• Best for
  Self-hosted API developers
• Free plan
  No
• Paid from
  $20/unit usage-based
• Commercial use
  Yes
• Facts checked
  20 Sep 2026

• Where it wins

  • Zero-shot voice cloning from reference audio
  • Supports multilingual and code-switched speech in 34 languages
  • Self-hosted inference plus OpenAI-compatible API access

• Where it doesn't

  • No free plan is listed
  • Published input limit is 600 characters
  • Hosted API usage is priced per 1M UTF-8 bytes

Our verdict on ZONOS2

ZONOS2 is Zyphra’s open-source, real-time text-to-speech model for developers and organizations building speech applications. It combines zero-shot voice cloning from reference audio with multilingual and code-switched generation across 34 languages. The model is available through Zyphra Cloud’s playground and API, or for self-hosting on Linux. It is a strong fit for teams that want programmatic speech generation, control over inference deployment, and commercial use.

Its main technical draw is the balance between voice cloning and generation controls. ZONOS2 offers stable and expressive modes, target speaking-rate and audio-quality controls, and output at 44.1 kHz. It also uses a sparse mixture-of-experts transformer architecture and provides a self-hosted TTS inference server. Audio can be exported as WAV or PCM, while real-time generation supports applications that need responsive speech output. The published category specifications list a maximum input size of 600 characters.

Pricing is straightforward in the published plan structure. The ZONOS2 API plan is hosted through Zyphra Cloud API and costs $20 per 1M UTF-8 bytes. There is no free plan listed. Developers who prefer a managed endpoint can use the OpenAI-compatible API through Zyphra Cloud, while teams that need deployment control can use the self-hosted option instead. ZONOS2 suits developers building speech products around cloning, multilingual output, and API workflows. It is less suitable for buyers seeking a free tier or a broader packaged application with multiple listed plans and usage options.

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ZONOS2 pricing

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ZONOS2 fact sheet

Alternatives to ZONOS2

• ElevenLabsA broad voice platform with cloning, multilingual synthesis, agents, APIs, and a free plan.9.4
• Fish AudioA flexible voice platform spanning cloning, streaming, transcription, APIs, and self-hosting.9.1
• Resemble AIA production-focused voice platform spanning cloning, streaming, conversion, and self-hosting.8.9

See all ZONOS2 alternatives →

Featured on iTechGuides

ZONOS2 is listed in our Voice Cloning Software directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Last updated 7 Oct 2026 · How we research and update