Cartesia alternatives
Top pick for realtime low-latency voice agents. ElevenLabs for voice library breadth.
Overall 7.81 (curated_estimate, high) · score asOf 2026-09-14 · last reviewed 2026-09-14. This is not an Elo and not a live price board. Provider · JSON
Jobs: speech-synthesis, voice-agents, realtime-tts, production-stt, voice-agent-platform
| Provider | Why listed | Overall | Δ vs subject | asOf |
|---|---|---|---|---|
| Deepgram Default STT and strong voice-agent platform. Standard Flux TTS / Voice Agent rates live since 2026-09-15… | same_jtbd_runner, same_jtbd_pick · realtime-tts, production-stt, voice-agent-platform | 8.5high | +0.69 | 2026-10-19 |
| ElevenLabs Default voice layer for talking agents. Combine with Twilio for phone; watch cloning policy. | same_jtbd_pick, same_jtbd_runner · speech-synthesis, voice-agents, realtime-tts | 8.27high | +0.46 | 2026-09-14 |
| Vapi Depot pick for shipping a phone/voice agent without assembling vendors. LiveKit when you want OSS + realtime… | same_jtbd_pick · voice-agent-platform | 8.09high | +0.28 | 2026-09-14 |
| Rime Realtime TTS latency peer. Depot pick stays Cartesia; ElevenLabs for library; Hume expressive; Rime when Mist… | same_jtbd_runner · speech-synthesis, realtime-tts | 8.27high | +0.46 | 2026-09-14 |
| Retell AI Best Vapi peer for balanced inbound voice agents with clear $/min math. Vapi remains Depot default; Bland for… | same_jtbd_runner · voice-agents, voice-agent-platform | 8.2high | +0.39 | 2026-09-14 |
| OpenAI Media (Images/Audio) Convenient if you're already on OpenAI. For best image variety/cost, keep Fal in the toolkit. | same_jtbd_runner · speech-synthesis, production-stt | 8.15high | +0.34 | 2026-09-14 |
| Bland AI Pick for high-volume outbound when bundled $/min and dialer features beat BYOK flexibility. Vapi/Retell when… | same_jtbd_runner · voice-agents, voice-agent-platform | 7.78high | -0.03 | 2026-09-14 |
| Hume AI A/B vs Cartesia when emotional prosody is the product. Cartesia remains the low-latency default; ElevenLabs… | same_jtbd_runner · speech-synthesis, realtime-tts | 7.63high | -0.18 | 2026-09-14 |
| LiveKit Cloud Default when the agent is a realtime session (voice or video) you want to own. Vapi for turnkey telephony… | same_jtbd_runner · voice-agent-platform | 8.48high | +0.67 | 2026-09-14 |
| Twilio Default when agents need SMS/voice globally. For email-only, don't drag Twilio in. | same_jtbd_runner · voice-agents | 8.26high | +0.45 | 2026-10-19 |
| Speechmatics Depot pick for multilingual/production STT beyond English-first stacks. Deepgram remains default $/min… | same_jtbd_runner · production-stt | 8.24high | +0.43 | 2026-09-14 |
| OpenAI Default when you want maximum capability and ecosystem glue. Multi-home critical paths behind OpenAI-compat… | same_jtbd_runner · voice-agents | 8.22high | +0.41 | 2026-09-14 |
Prices are not ranked on this page. For a job, use the sourced quote (separate input and output rows, Depot Pick unchanged): speech-synthesis, voice-agents, realtime-tts, production-stt.
Alternatives are other catalog providers that share a JTBD as pick or runner-up. If fewer than three exist, same-category active providers fill the list and are labeled same_category. Overall deltas are catalog scores. kind=curated_estimate is not a lab measurement. Pricing rows are sourced or explicitly null. Do not parse pricingNotes. A single normalized USD figure is set only for a provider with exactly one token row.