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AI · head to head

Cartesia vs Wasabi

Cartesia logo

Cartesia

AI

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

From
Free
Free plan
Yes
Full reviewWebsite
Wasabi logo

Wasabi

Cloud

Hot cloud storage without egress fees

From
$7.99/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.; Wasabi 90-day minimum storage duration with no option to delete before full period without penalty
  • They diverge on capability: Cartesia covers Sonic text-to-speech, Wasabi covers Hot Cloud Storage.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Cartesia and Wasabi actually diverge.

Attributes where Cartesia and Wasabi differ
AttributeCartesiaWasabi
Starting priceFree$7.99/month
Pricing modelfreemiumUnknown
Free tierYesNo
CategoryAICloud
FoundedUnknown2015

Identical on both: platforms (web, api), 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 Wasabi

  • Hot Cloud Storage
  • S3 Compatible API
  • Object Lock
  • Versioning
  • Multi-region
  • Data Migration Tools
  • Immutability
  • Ransomware Protection

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 Wasabi
  • Real-time transcription for conversational applicationsnot Wasabi
  • Voice cloning for branded synthetic voicesnot Wasabi
  • On-device or on-premise voice AI for regulated industriesnot Wasabi

Wasabi

  • Backup and recoverynot Cartesia
  • Media storagenot Cartesia
  • Archive replacementnot Cartesia
  • Ransomware protectionnot 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.

Wasabi

  • 90-day minimum storage duration with no option to delete before full period without penalty
  • Significantly smaller global footprint than AWS with only 16 regions, resulting in higher latency for users in underserved regions
  • Performance can degrade with high-volume transactions requiring throughput management strategies
  • Hot storage only, no cold/archival storage tier for long-term data at lower cost
  • Support responsiveness gaps with teams experiencing multi-day waits for critical issue resolution

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

Wasabi

$7.99/month

No published plan breakdown. See the Wasabi review.

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 Wasabi if

  • You need hot cloud storage.
  • You work on Web, API.
  • You also want s3 compatible api.
Wasabi review

Questions people ask

Is Cartesia or Wasabi better?
Neither clearly leads. Cartesia starts at Free and Wasabi at $7.99/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Cartesia or Wasabi?
Cartesia has a free tier; the other does not. Paid plans start at Free for Cartesia and $7.99/month for Wasabi.
Does Cartesia or Wasabi run on more platforms?
Cartesia runs on web, api. Wasabi runs on Web, API.
Can I use Cartesia for free?
Yes. Cartesia has a free tier, so you can try it without paying. Wasabi starts at $7.99/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 Wasabi is typically brought in for.
What can Cartesia do that Wasabi cannot?
Cartesia covers Sonic text-to-speech, Ink speech-to-text, Line voice agent platform, Instant and professional voice cloning. Wasabi covers Hot Cloud Storage, S3 Compatible API, Object Lock, Versioning.

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
Wasabi: What is Wasabi's pricing structure?

Wasabi offers pay-as-you-go pricing at $7.99 per TB per month as of July 2026, with no egress or API request fees. Reserved capacity plans are available for multi-year terms with volume discounts.

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
Wasabi: Does Wasabi charge for data downloads or API calls?

No. Wasabi includes zero egress fees and zero API request fees, which is a major cost advantage over AWS S3. Customers can plan their budget to the penny without worrying about surprise data transfer charges.

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
Wasabi: Is there a minimum storage duration requirement?

Yes. Wasabi enforces a 90-day minimum storage term. Users who delete data before 90 days are still charged for the full 90-day period.

Source
Wasabi: Is Wasabi S3-compatible?

Yes. Wasabi Hot Cloud Storage is fully S3-compatible, meaning organizations can integrate it into existing workflows without rewriting application code used with AWS S3.

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