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AI · head to head

Cartesia vs Contabo

Cartesia logo

Cartesia

AI

Real-time voice AI platform for speech generation, transcription, and voice agents

From
Free
Free plan
Yes
Full reviewWebsite
Contabo logo

Contabo

Cloud

Affordable high-performance VPS hosting

From
€4.5/month
Free plan
No
Full reviewWebsite

The short version

  • Only Cartesia has a free tier, so it costs nothing to try first.
  • Each has a real cost: Cartesia instant and professional voice cloning are gated behind paid Pro and Startup tiers, unavailable on the free plan.; Contabo fully unmanaged infrastructure requires all setup and maintenance by customer
  • They diverge on capability: Cartesia covers Sonic text-to-speech, Contabo covers VPS Hosting.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Cartesia and Contabo actually diverge.

Attributes where Cartesia and Contabo differ
AttributeCartesiaContabo
Starting priceFree€4.5/month
Pricing modelfreemiumUnknown
Free tierYesNo
Platformsweb, apiLinux, Windows
CategoryAICloud
FoundedUnknown2003

Identical on both: user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Cartesia

  • Sonic text-to-speech
  • Ink speech-to-text
  • Line voice agent platform
  • Instant and professional voice cloning
  • Flexible deployment
  • Telephony integration

Only in Contabo

  • VPS Hosting
  • Dedicated Servers
  • Object Storage
  • Snapshots
  • DDoS Protection
  • Custom ISO
  • Multiple Locations
  • SSD Storage

What people use each for

The jobs each tool is most often brought in to do.

Cartesia

  • Building low-latency voice agents for customer supportnot Contabo
  • Real-time transcription for conversational applicationsnot Contabo
  • Voice cloning for branded synthetic voicesnot Contabo
  • On-device or on-premise voice AI for regulated industriesnot Contabo

Contabo

  • Web hostingnot Cartesia
  • Game serversnot Cartesia
  • Development environmentsnot Cartesia
  • VPN serversnot Cartesia

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Cartesia

  • Instant and professional voice cloning are gated behind paid Pro and Startup tiers, unavailable on the free plan.
  • Voice agent calls carry a separate per-minute usage fee ($0.06/minute) on top of subscription credits.
  • Enterprise features like SSO and BAAs require a custom sales conversation rather than self-serve upgrade.
  • Free tier concurrency limits (2 TTS, 8 STT concurrent requests) may be restrictive for testing production-like load.

Contabo

  • Fully unmanaged infrastructure requires all setup and maintenance by customer
  • No formal SLA with financial compensation for downtime violations

Pricing, plan by plan

Cartesia

Free
  • FreeFree
    • 20,000 credits/month
    • TTS and STT included
    • 2 concurrent TTS requests, 8 concurrent STT requests
  • Pro$4/month
    • 100,000 credits/month
    • Commercial use license
    • Instant voice cloning
  • Startup$39/month
    • 1.25M credits/month
    • Professional voice cloning
    • Organizations support
  • Scale$239/month
    • 8M credits/month
    • Priority support
    • High concurrency limits

Contabo

€4.5/month
  • Cloud VPS$4.5/month
    • 4 vCPU
    • 8 GB RAM
    • 100 GB SSD
  • Cloud VDS$39/month
    • Dedicated cores
    • 24 GB RAM
    • 180 GB NVMe
  • Dedicated Server$149/month
    • AMD CPU
    • 64 GB RAM
    • 1 TB NVMe

Which should you pick?

Choose Cartesia if

  • You need sonic text-to-speech.
  • You want to start without paying.
  • You work on web, api.
  • You also want ink speech-to-text.
Cartesia review

Choose Contabo if

  • You need vps hosting.
  • You work on Linux, Windows.
  • You also want dedicated servers.
Contabo review

Questions people ask

Is Cartesia or Contabo better?
Neither clearly leads. Cartesia starts at Free and Contabo at €4.5/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Cartesia or Contabo?
Cartesia has a free tier; the other does not. Paid plans start at Free for Cartesia and €4.5/month for Contabo.
Does Cartesia or Contabo run on more platforms?
Cartesia runs on web, api. Contabo runs on Linux, Windows.
Can I use Cartesia for free?
Yes. Cartesia has a free tier, so you can try it without paying. Contabo starts at €4.5/month.
What is Cartesia best used for?
Cartesia is most often used for building low-latency voice agents for customer support, real-time transcription for conversational applications, voice cloning for branded synthetic voices, on-device or on-premise voice ai for regulated industries. Of those, building low-latency voice agents for customer support and real-time transcription for conversational applications are not what Contabo is typically brought in for.
What can Cartesia do that Contabo cannot?
Cartesia covers Sonic text-to-speech, Ink speech-to-text, Line voice agent platform, Instant and professional voice cloning. Contabo covers VPS Hosting, Dedicated Servers, Object Storage, Snapshots.

Answered from the vendors’ own pages

Cartesia: What does Cartesia cost?

Cartesia offers a free plan, Pro at $4/month, Startup at $39/month, Scale at $239/month, and custom Enterprise pricing, each including a monthly credit allotment, with annual billing saving 20%.

Source
Contabo: What is the base pricing for Contabo VPS?

Contabo Cloud VPS starts at EUR 4.50 per month (approximately $4.95 USD) with 4 vCPU cores and 8 GB RAM. Prices scale up to EUR 39+ per month for dedicated performance VPS with higher specs.

Source
Cartesia: Is there a free plan, and what are its limits?

The Free plan includes 20,000 credits per month, both TTS (Sonic) and STT (Ink), 2 concurrent TTS requests, 8 concurrent STT requests, and 1 voice agent slot.

Source
Contabo: Does Contabo raise prices at renewal?

No. Unlike many hosting providers, Contabo does not increase renewal prices. The promotional price you get at sign-up is locked in for future renewals.

Source
Cartesia: How is usage metered?

Usage draws down a monthly credit allotment, with voice agent calls additionally billed at $0.06/minute and telephony via Cartesia phone numbers at $0.014/minute.

Source
Contabo: What data center locations does Contabo offer?

Contabo operates 9 global data center regions including multiple EU locations, US East/Central/West Coast, United Kingdom, India, Singapore, Japan, and Australia.

Source
Contabo: Does Contabo provide managed services?

No. Contabo VPS is fully unmanaged. You handle all setup, security patching, and system maintenance. Managed hosting adds 2 hours per month of dedicated support for a fee.

Source
Contabo: What is Contabo's uptime guarantee?

Contabo maintains a 99.996% uptime guarantee across all plans. The platform includes unlimited traffic and free DDoS protection.

Source
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