Cartesia vs Unreal Speech (2026): Pricing, Features & Which to Choose

Who comes out ahead

Based only on the facts in our directory. The right pick still depends on the job you need done.

Lower starting price
Not comparable
Not comparable: Cartesia does not list a price
Free plan
Tie
Both have one
Higher rating
Cartesia
4.4 against 4.1
Same job?
Yes
Both are Audio tools

Side by side

Compared on	Cartesia	Unreal Speech
Our rating	4.4Better	4.1
Starts at	Free	Free
Free plan	Yes	Yes
Category	Audio	Audio
Plans	Free	Free$0/mo Basic$49/mo Plus$499/mo
Key features	State space model architecture (Mamba-based) for low latency Sonic (TTS), Ink (STT), and Line (voice agent) product suite Top-ranked on independent speech benchmarks Cloud, on-premise, and on-device deployment options Built for regulated industries (finance, healthcare, government)	Substantially lower cost per character than premium TTS providers Roughly 300ms streaming latency suitable for conversational use Single-request generation of very long audio for narration pipelines Per-word timestamps for caption alignment and precise editing Free allowance of 250,000 characters for evaluation
Pros	Architecture specifically optimized for real-time latency Strong independent benchmark rankings Flexible deployment for data residency and compliance needs	Cost structure makes high-volume synthesis economically viable Latency low enough for real-time conversational applications Per-word timestamps enable caption and editing workflows
Cons	No published flat pricing, requires contacting sales for production use Built for developers and enterprises, not casual consumer use Newer company with a shorter public track record	Fewer voices and languages than the largest providers API-only, so there is no interface for non-developers
Company	Cartesia, founded 2023	Unreal Speech

Prices come from each vendor's pricing page, last checked 20260802. Check the vendor before you buy.

FAQ

Questions people ask

Is Cartesia better than Unreal Speech?

In our reviews Cartesia scores 4.4 and Unreal Speech scores 4.1. The better pick depends on the job. Cartesia: A different model architecture built for real-time voice agents. Unreal Speech: A low-cost, low-latency text-to-speech API built for high-volume production use.

Which is cheaper, Cartesia or Unreal Speech?

Cartesia: free. Unreal Speech: free.

Do Cartesia and Unreal Speech have free plans?

Yes, both have a free plan.

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