# Cartesia vs Suno

> Cartesia: Real-time speech AI for developers: fast text-to-speech, transcription and voice agents
> Suno: Turn text prompts, lyrics or audio into complete songs with vocals

- Cartesia profile: https://finderatlas.com/tools/cartesia
- Suno profile: https://finderatlas.com/tools/suno
- Comparison page: https://finderatlas.com/compare/cartesia-vs-suno
- Last reviewed: October 2026

## Verdict

Cartesia and Suno are both Audio & Speech AI tools. Suno scores higher in FinderAtlas's editorial review (8.7 vs 8.3 out of 10). Both have a free plan or trial. Only Cartesia offers an API. Only Suno is available on iOS and Android.

### Choose Cartesia if

- You want a tool built for Low-latency voice agents, real-time text-to-speech and streaming transcription inside applications.
- Published time to first audio of about 90 ms for Sonic 3.6, suited to live conversation.
- Free tier with 20K credits per month and a $5 Pro plan with commercial use and instant cloning.

### Choose Suno if

- You want a tool built for quick song drafts from a text prompt.
- Creates full songs with vocals and lyrics from a short prompt or your own lyrics.
- Free plan with 50 daily credits and access to v6-mini.

## Pricing

| | Cartesia | Suno |
| --- | --- | --- |
| Pricing model | Freemium | Freemium |
| Free plan or trial | Yes | Yes |
| Starting price | $0 | $0 |

## Features

| Feature | Cartesia | Suno |
| --- | --- | --- |
| Sonic Text-to-Speech | Yes | Not listed |
| Ink Speech-to-Text | Yes | Not listed |
| Managed Agents | Yes | Not listed |
| Voice Cloning | Yes | Not listed |
| Pronunciation Dictionaries | Yes | Not listed |
| Regional API Routing | Yes | Not listed |
| Telephony Support | Yes | Not listed |
| Python and JavaScript SDKs | Yes | Not listed |
| Usage and Access Controls | Yes | Not listed |
| v6 models | Not listed | Yes |
| Text, lyrics and audio inputs | Not listed | Yes |
| Section editing | Not listed | Yes |
| Mashups and sampling | Not listed | Yes |
| Stem separation | Not listed | Yes |
| Suno Studio | Not listed | Yes |
| Custom models and own voice | Not listed | Yes |
| Mobile apps | Not listed | Yes |

## Platforms

| Platform | Cartesia | Suno |
| --- | --- | --- |
| Web | Yes | Yes |
| Windows | No | No |
| macOS | No | No |
| iOS | No | Yes |
| Android | No | Yes |
| API | Yes | No |
| Browser Extension | No | No |

## Cartesia strengths

- Published time to first audio of about 90 ms for Sonic 3.6, suited to live conversation.
- Free tier with 20K credits per month and a $5 Pro plan with commercial use and instant cloning.
- One platform covers text-to-speech, speech-to-text and managed voice agents.
- Regional endpoints in the US, EU and APAC, with on-premise and on-device options.
- Frequent releases: the changelog shows monthly model, voice and API updates in 2026.
- Ranked first on Artificial Analysis speech leaderboards according to the company.

## Cartesia limitations

- The free tier has no instant voice cloning, only 2 concurrent TTS requests and no commercial license.
- Credit-based billing with overage up to $65 per 1M credits can be hard to forecast as usage grows.
- Independent reviews note a smaller preset voice library than some narrative-focused competitors.
- Developer-oriented; there is no consumer app and no released iOS or Android app.

## Suno strengths

- Creates full songs with vocals and lyrics from a short prompt or your own lyrics
- Free plan with 50 daily credits and access to v6-mini
- Edits a single section, line or word without regenerating the song
- Web, iOS and Android apps
- Premier includes Suno Studio with MIDI, effects and multitrack export

## Suno limitations

- Free plan songs cannot be used commercially and are owned by Suno
- Song downloads are capped at 20 per month on Pro and 60 on Premier, with none on the free plan
- Suno Studio, personas and advanced stem splitting require the $30 Premier plan
- Music made entirely by AI may not qualify for copyright protection
- No public self-serve API; Universal Music Group and Sony Music lawsuits against Suno are reported as still ongoing

## FAQ

**Is Cartesia better than Suno?**

It depends on your workflow. Cartesia is built for Low-latency voice agents, real-time text-to-speech and streaming transcription inside applications. Suno is built for quick song drafts from a text prompt.

**What are the key feature differences between Cartesia and Suno?**

Cartesia: Real-time speech AI for developers: fast text-to-speech, transcription and voice agents. Suno: Turn text prompts, lyrics or audio into complete songs with vocals.

**Does Cartesia or Suno have a free plan?**

Yes, both do. Cartesia is freemium and Suno is freemium, and each has a free plan or trial.

**Which is cheaper, Cartesia or Suno?**

Both can be used for free. Paid plans differ in limits and features, so compare the tiers in the pricing table above.