Try Cartesia
Resemble AI

ElevenLabs vs Resemble AI

Compare ElevenLabs with Resemble Ultra and open-source Chatterbox. Review model choice, cloning, deployment and the costs to check before launch.

Try CartesiaTalk to Sales

ElevenLabs vs Resemble AI at a glance

Start with ElevenLabs when you want to choose among models for fast responses, narration or expressive speech. Evaluate Resemble Ultra for its hosted voice API, or Chatterbox if you want to run an open-source model yourself. Those are different deployment and cost decisions.

ElevenLabsResemble AI

  1. Hosted model selection

    ElevenLabs
    Flash v2.5 for latency-sensitive use; Multilingual v2 for long-form speech; Eleven v3 for expressive delivery.
    Resemble AI
    Resemble Ultra is the current hosted TTS model. The API uses the model attached to a voice UUID.

  2. Streaming and response time

    ElevenLabs
    Choose the model for your response-time target; Flash and expressive models have different latency tradeoffs.
    Resemble AI
    Synchronous, HTTP streaming and WebSocket synthesis. WebSocket access requires Business or above.

  3. Open-source option

    ElevenLabs
    This comparison evaluates the hosted ElevenLabs service.
    Resemble AI
    Chatterbox is a separate MIT-licensed project that you can deploy and operate yourself.

  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. Confirm hosted Ultra support for your required language.

  5. Voice cloning

    ElevenLabs
    Instant and Professional Voice Cloning are separate workflows with different recording and plan requirements.
    Resemble AI
    Hosted cloning documentation specifies 10 seconds to 3 minutes of audio and Business plan access or above.

  6. Deployment ownership

    ElevenLabs
    Confirm any private deployment requirements with ElevenLabs before selecting a plan.
    Resemble AI
    Self-hosted Chatterbox makes infrastructure your responsibility. Enterprise on-premises options need a separate scope.

  7. Cost comparison

    ElevenLabs
    ElevenAPI meters text-to-speech by characters. Check the selected model and offer.
    Resemble AI
    Request a hosted speech-generation quote covering usage, voice cloning, and streaming access.

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

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.
  • Record the exact model used in an evaluation. Resemble's hosted Ultra model and the Chatterbox repository are separate choices.
  • If private deployment is required, confirm the supported model, hardware and support agreement before comparing prices.

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.
  • Test your required language and accent with the actual voice. Language totals alone do not establish clone quality.
  • Check streaming access and concurrent load on the plan you intend to buy. For a custom voice, review ElevenLabs' cloning workflows before preparing recordings.

Compare the full cost

  • Request a Resemble quote for hosted speech generation. Include your monthly text volume, custom voices, streaming needs and expected concurrent requests.
  • For self-hosted Chatterbox, include compute, idle capacity and the engineering time to operate it.
  • Use the current ElevenAPI pricing page for the other side of the comparison. Match usage and model scope before calculating a monthly total.

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

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