Alternatives to Cartesia Line

For each task Cartesia Line is listed in, the highest-ranked other options of the same kind, ranked only from public benchmarks.

Voice agents: voice-agent platforms

S Cartesia Line · Cloud · 1,034 on Artificial Analysis Speech Agent Arena (cascaded agent platforms)

Alternatives to Cartesia Line for voice agents
Tier	Name	Approach	Runs	Rated by	Price	Skill	Compare
S	ElevenLabs ElevenLabs	Voice-agent platforms	Cloud	998 on Artificial Analysis Speech Agent Arena (cascaded agent platforms)	Free tier · $6/mo	beginner	vs Cartesia Line
B	Deepgram Voice Agent API Deepgram	Voice-agent platforms	Cloud	916 on Artificial Analysis Speech Agent Arena (cascaded agent platforms)	Free tier	intermediate	vs Cartesia Line
B	Retell AI Retell AI	Voice-agent platforms	Cloud	via GPT-Realtime-2.1	Free tier	intermediate

Tiers come only from public benchmarks; tools without a result of their own inherit the tier of the best model they offer. How we rank.