List your tool

Head to head · 2026

Cartesia vs Deepgram

Pricing, free plans, ratings, features, pros and cons, side by side. Where one comes out ahead, we mark it.

Cartesia

A different model architecture built for real-time voice agents

4.4Free

Visit Cartesia (opens Cartesia in a new tab)

Deepgram

Trains its own speech models from scratch, built for call centers

4.5Free

Visit Deepgram (opens Deepgram in a new tab)

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

    Deepgram

    4.4 against 4.5

  • Same job?

    Yes

    Both are Audio tools

Side by side

Compared onCartesiaDeepgram
Our rating4.44.5Better
Starts atFreeFree
Free planYesYes
CategoryAudioAudio
PlansFreeFree
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 recognition models trained from scratch, not fine-tuned Whisper
  • Real-time streaming transcription API
  • Built for call center and voice agent use cases
  • Usage-based API pricing
  • Free credits for development and testing
Pros
  • Architecture specifically optimized for real-time latency
  • Strong independent benchmark rankings
  • Flexible deployment for data residency and compliance needs
  • Own model training gives more control over accuracy and speed tradeoffs
  • Strong fit for real-time, low-latency transcription needs
  • Long operating history in the speech API space
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
  • No consumer app, requires engineering integration
  • Real-time focus matters less for simple batch transcription needs
  • Costs can scale significantly at high call volume
CompanyCartesia, founded 2023Deepgram, founded 2015

Prices come from each vendor's pricing page, last checked 20260703. Check the vendor before you buy.

FAQ

Questions people ask

Is Cartesia better than Deepgram?

In our reviews Cartesia scores 4.4 and Deepgram scores 4.5. The better pick depends on the job. Cartesia: A different model architecture built for real-time voice agents. Deepgram: Trains its own speech models from scratch, built for call centers.

Which is cheaper, Cartesia or Deepgram?

Cartesia: free. Deepgram: free.

Do Cartesia and Deepgram have free plans?

Yes, both have a free plan.

More comparisons

Cartesia compared with

All Cartesia alternatives

Deepgram compared with

All Deepgram alternatives