Best AI Voice Agents · head-to-head
Cartesia vs Pipecat Cloud
A sourced, side-by-side comparison for ai voice agents. Cartesia has the lower entry price. Every figure links to the public page it was captured from — the vendor's own wherever the vendor publishes the number, otherwise the named public source — with the date we captured it.
Cartesia has the lower entry price — Cartesia starts at $0/mo, Pipecat Cloud at $0/mo. Free tier: Cartesia Yes, Pipecat Cloud Yes. HIPAA: Cartesia Yes, Pipecat Cloud —.
As of 2026-09-10 · figures link to their source below
Side by side
Cartesia
$0/mo entryPipecat Cloud
$0/mo entrySources — Cartesia: cartesia.ai (verified 2026-09-10) · Pipecat Cloud: daily.co (verified 2026-09-10)
Key features
Cartesia: Sonic state-space TTS built for very low time-to-first-audio, the specific problem Cartesia was founded on; First-party STT (Ink) alongside first-party TTS, so one vendor covers both legs of the pipeline; Voice agents at $0.06/min with optional $0.014/min first-party telephony, cheaper than bolting on a third-party carrier; Optional Zero Data Retention plus SOC 2 Type II, HIPAA, PCI-DSS (service level provider) and GDPR compliance; Entry paid tier at $5/month is the lowest in this set, so the step off free is nearly free
Pipecat Cloud: Managed hosting for Pipecat, the widely used open-source voice-agent framework, so there is a credible exit path to self-hosting; Unlimited concurrency is advertised, though the page directs you to contact Daily rather than publishing a self-serve ceiling — still notable in a category where concurrency is the standard upsell lever; Reserved instances cut the compute rate about 20x for predictable steady-state traffic; Three container sizes priced linearly, so a heavier agent costs proportionally rather than forcing a plan change; Daily WebRTC 1:1 voice transport is free, so a browser-based agent pays compute only; Krisp VIVA noise suppression included to 10,000 minutes/month