Cartesia Line vs ElevenLabs Conversational AI (ElevenAgents)

Cartesia Line and ElevenLabs Conversational AI (ElevenAgents) are both Realtime Voice Agent APIs, compared here on pricing, compliance, capabilities, and developer experience from structured, cited data - not reviews or paid placement. Cartesia Line starts lower at $0.06 per minute vs $0.08 for ElevenLabs Conversational AI (ElevenAgents). For coding-agent use, ElevenLabs Conversational AI (ElevenAgents) scores higher on agent-friendliness (65 vs 55).

Comparedby a transparent data-readiness score computed from each API's published, sourced fields. No reviews, no paid placement. How we rank.

Data last verified 2026-06-21, with every field cited on each profile.

Head-to-head, from published, cited fields (auto-generated; no paid placement)
Field	Cartesia Line	ElevenLabs Conversational AI (ElevenAgents)
Starting price	$0.06 minute	$0.08 minute
Pricing model	Hybrid	Hybrid
Free tier	✓	✓
Self-serve signup	✓	✓
SOC 2	Type II	Type II
HIPAA	✓	✓
GDPR	✓	✓
Webhooks	✓	✓
Sandbox	✗	✗
Documented actions	25	18

Full data and citations: Cartesia Line · ElevenLabs Conversational AI (ElevenAgents). See more Realtime Voice Agent APIs.