Head to head · Agents · updated Oct 27, 2026
Pipecat vs Cartesia
Pipecat scores 42 to Cartesia's 9 on public evidence for voice & phone agents, and they rank #1 and #4 there. Both are free to start. Numbers below are the same public signals the ranking uses, recomputed nightly — nothing here is sponsored.
Pipecat
Open-source pipeline for voice and multimodal agents, built from swappable frames.
+ The pipeline is explicit, so interruption handling and turn-taking are yours to tune.
− A library, not a dashboard: no call logs or flow editor unless you build them.
Cartesia
Sonic: very low-latency voice generation built for live conversation.
+ Latency low enough for a voice agent that can be interrupted.
− Fewer polished preset voices than ElevenLabs, and it is API-first.
Side by side
public evidence| Pipecat | Cartesia | |
|---|---|---|
| Evidence score / 100 | 42 | 9 |
| GitHub stars | 16,852 | closed source |
| Hacker News stories, 30d | 1 | 0 |
| Release-feed mentions, 30d | 0 | 0 |
| Last activity | 0 days ago | – |
| Pricing | Open source · BSD-2; you pay only the services you plug in | Free tier · Free credits to try; usage-based after |
| Platforms | api, cli, linux, mac | api, web |
| Maker | Daily | Cartesia |
Which one?
Pick Pipecat if
- you want the stronger public evidence (42 vs 9)
- you want open source — self-host it, read it, fork it
- you need it on cli, linux, mac
- a bigger GitHub community matters (16,852 vs 0 stars)
Best for engineers who want the voice loop in their own code.
Pick Cartesia if
- you need it on web
Best for real-time voice agents.