ElevenLabs vs Resemble AI

Resemble AI stopped selling text to speech and voice cloning to new customers in August 2026. Compare ElevenLabs, self-hosted Chatterbox and other options.

Try CartesiaTalk to Sales

ElevenLabs vs Resemble AI at a glance

On August 13, 2026, Resemble AI said it no longer sells voice generation and isn't taking new voice customers. It now sells deepfake detection. Existing voice customers are still supported, and the Chatterbox models stay open source. If you're choosing a voice API today, the real comparison is ElevenLabs (or another hosted API) against running Chatterbox yourself.

ElevenLabsResemble AI

  1. Availability

    ElevenLabs
    ElevenLabs sells its speech models and API to new customers.
    Resemble AI
    Not open to new voice customers since August 2026. Existing voice customers stay supported.

  2. Hosted model selection

    ElevenLabs
    v4 and v4 Turbo, Flash v2.5 for latency-sensitive use, Multilingual v2 for long-form speech, Eleven v3 for expressive delivery.
    Resemble AI
    Resemble Ultra serves existing voices. Earlier hosted versions, including hosted Chatterbox, are end of life.

  3. Open-source option

    ElevenLabs
    This comparison evaluates the hosted ElevenLabs service.
    Resemble AI
    Chatterbox is an MIT-licensed research release you deploy yourself, with no SLA, paid tier or support.

  4. Languages

    ElevenLabs
    Language coverage varies by model. Flash v2.5 lists 32; Multilingual v2 lists 29.
    Resemble AI
    Self-hosted Chatterbox coverage varies by model; Turbo and Nano are English models.

  5. Voice cloning

    ElevenLabs
    Instant and Professional Voice Cloning are separate workflows with different recording and plan requirements.
    Resemble AI
    No new cloning customers. To move a clone, keep the original recordings; a Resemble voice ID won't work elsewhere.

  6. Deployment ownership

    ElevenLabs
    Confirm any private deployment requirements with ElevenLabs before selecting a plan.
    Resemble AI
    Self-hosted Chatterbox makes inference, scaling and monitoring your responsibility.

  7. Cost comparison

    ElevenLabs
    ElevenAPI lists v4 Turbo and Flash/Turbo at $0.04 and v4, v3 and Multilingual v2 at $0.08 per 1,000 characters.
    Resemble AI
    Resemble's pricing page lists detection products only. For Chatterbox, budget compute and engineering time.

Why teams choose Cartesia

Rated first by listeners

Sonic 3.6 ranks first on the Artificial Analysis Provider Voice Arena, a blind listening test.

First audio in under 90ms

Sonic streams speech fast enough for a live phone call, on the public API.

44 languages, one model

Native accents in every language, with no model to switch when a caller does.

Enterprise ready

SOC 2 Type II, HIPAA-eligible, on-prem and air-gapped deployment, and a 99.9% uptime SLA.

How they stack up

If you use Resemble for voice today

  • Resemble says existing voice customers stay supported, but it won't build new voice models for sale. Plan a move on your own schedule rather than waiting for a deadline.
  • Save generated audio you still need and the recordings behind any cloned voice. You need the recordings, and the speaker's permission, to recreate a voice elsewhere.
  • Run your current scripts through each replacement before you switch traffic. Keep names, numbers and long passages in the test set.

Decide who will run the model

  • A hosted API gives your application a service to call. Self-hosting Chatterbox also requires inference capacity, deployment and monitoring.
  • Chatterbox is now a research release. Resemble ships it with built-in watermarking and no SLA, so treat upgrades and fixes as your own work.
  • Record the exact model used in an evaluation, and don't mix results from different models into one provider score.

Test the output and the integration

  • Use the same names, numbers and long passages for each model. Listen to the codec your customers will hear.
  • Measure first playable audio from your deployment region, including buffering and network time.
  • Check streaming access and concurrent load on the plan you intend to buy. For a custom voice, review ElevenLabs' cloning workflows before preparing recordings.

Trusted by leading enterprises. Speaking from experience.

Discover success stories
2X Solutions logo
arini logo
toby logo
“Cartesia’s state-space models bring enterprise-grade speed and quality to our AI Voice Agents… making it possible for businesses to deploy secure, scalable voice agents that can understand, act, and adapt in real time.”

Ravi Krishnamurthy

VP Product

“With Cartesia's Sonic model, users can interact with a wide range of high-quality, human-like voices in multiple languages, enhancing their experience on our platform.”

Spencer Chan

Head of Poe Product

“Cartesia is leading the charge of building efficient, multimodal models from first principles, starting with their Sonic TTS model.”

Vipul Ved Prakash

CEO

“We didn’t switch to Sonic because it was incrementally better, we switched because nothing else came close… we’ve seen a 2.9% lift in our conversion and a 12.2% increase in customer engagement.”

Akshay Ramaswamy

Staff Product Manager

“Sonic represents a significant evolution over previous TTS models, delivering refined prosodic rhythm, natural intonation, superior pacing and wider emotional range for more “human” sounding voices.”

Tyler Brown

Voice Expert

“Cartesia Sonic is the best voice model today for real-time multimodal use cases.”

Kwindla Hultman

CEO

Frequently asked questions

Does Resemble AI still sell text to speech?

Not to new customers. On August 13, 2026, Resemble AI said it does not sell text to speech, voice cloning, speech-to-speech or voice design as commercial products and is not accepting new customers for them. Existing voice customers continue to be supported. The company now sells deepfake detection, watermarking and identity APIs. The statement is in Resemble's announcement.

What should I use instead of Resemble AI?

Pick by job. For an app or voice agent that streams speech, test a hosted real-time TTS API such as ElevenLabs v4 Turbo or Flash v2.5, or Cartesia Sonic, on your own scripts. For expressive narration, test ElevenLabs v4 or Eleven v3. If you need the model on your own hardware, Chatterbox is still open source; see the open-source TTS guide.

Is Chatterbox still available?

Yes. The Chatterbox repository is MIT-licensed and Resemble says its voice models stay open and free to use as research releases. They carry no SLA, paid tier or enterprise support, and they embed Resemble's PerTh watermark in generated audio. Resemble's hosted API retired its Chatterbox versions in favor of Resemble Ultra, which serves existing customers.

Can I run Chatterbox on my own infrastructure?

Yes. The official repository includes installation and inference examples and uses the MIT license. You are responsible for choosing suitable hardware, serving requests and monitoring the deployment. Check the requirements of the specific model rather than assuming every Chatterbox variant has the same footprint.

Can I move a Resemble voice clone to ElevenLabs?

Not directly. A Resemble voice ID doesn't work in another provider's API. Keep the original recordings you used to create the clone, and make sure you still have permission to use them. Then create a new clone through ElevenLabs' Instant or Professional workflow and test it on your scripts before switching traffic.

Is Resemble AI the same thing as Chatterbox?

No. Resemble AI is the company; Chatterbox is a family of open-source speech models it published. The company now sells detection products. A Chatterbox installation runs on your own infrastructure and is not a hosted API subscription.

How do Resemble AI and ElevenLabs costs compare?

There's no Resemble voice price to compare for a new customer: its pricing page lists detection products only. ElevenAPI lists v4 Turbo and Flash/Turbo at $0.04 and v4, v3 and Multilingual v2 at $0.08 per 1,000 characters, excluding taxes. For self-hosted Chatterbox, compare those rates with your GPU, idle capacity and engineering time.

Which ElevenLabs model should I compare with Chatterbox?

Choose by workflow. ElevenLabs positions Flash v2.5 and v4 Turbo for low latency, Multilingual v2 for stable long-form output and v4 or Eleven v3 for expressive delivery. Compare the selected model with a named Chatterbox release on the same scripts. If Sonic is also on your shortlist, the Cartesia vs Resemble comparison covers the same hosted-versus-self-hosted decision.

Still comparing voice providers?

Explore all comparisons

Get started today

Talk to an expert.

Connect with a member of our team and learn how Cartesia can help you build world-class voice experiences.

Contact Sales

Start building.

Access our models via API and bring a voice agent into production in minutes.

Try Cartesia