Cartesia vs Speechmatics (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 3.9
Same job?
Yes
Both are Audio tools

Side by side

Compared on	Cartesia	Speechmatics
Our rating	4.4Better	3.9
Starts at	Free	$0.13/mo
Free plan	Yes	Yes
Category	Audio	Audio
Plans	Free	From $0.13/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)	Speech-to-text in 55+ languages and dialects Low-latency mode built for real-time voice agents English text-to-speech for voice-agent responses AI translation across 69 language pairs Custom models, custom voices and on-premises deployment for Enterprise
Pros	Architecture specifically optimized for real-time latency Strong independent benchmark rankings Flexible deployment for data residency and compliance needs	A meaningful free credit to test the API before paying Broad language coverage backed by an enterprise-grade platform On-premises deployment for organisations that cannot use the cloud
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	Enterprise pricing is not public and needs a sales conversation Accuracy still depends on testing against real audio, not headline language counts alone Text-to-speech is limited to English on the pages reviewed
Company	Cartesia, founded 2023	Speechmatics

Prices come from each vendor's pricing page, last checked 20260922. Check the vendor before you buy.

FAQ

Questions people ask

Is Cartesia better than Speechmatics?

In our reviews Cartesia scores 4.4 and Speechmatics scores 3.9. The better pick depends on the job. Cartesia: A different model architecture built for real-time voice agents. Speechmatics: Enterprise speech API platform for speech-to-text and voice agents in 55+ languages, with $100 in free usage and no card required.

Which is cheaper, Cartesia or Speechmatics?

Cartesia: free. Speechmatics: from $0.13/mo.

Do Cartesia and Speechmatics have free plans?

Yes, both have a free plan.

More comparisons

Cartesia compared with

All Cartesia alternatives

Speechmatics compared with

All Speechmatics alternatives