Home › Voice agents
Best Voice agents, ranked
11 agents, scored on our rubric. Last updated 2026-10-23.
| # | Agent | Score | Starting price | Best for |
|---|---|---|---|---|
| 1 | LiveKit Agents Open-source framework and cloud for realtime voice and video agents. | 8.1 | Free (Build plan); Ship $50/mo | Engineering teams building custom realtime agents |
| 2 | Vapi Developer platform for building voice AI agents for phone and web. | 8 | $0.05/min platform fee + provider costs | Developers building custom phone agents |
| 3 | Retell AI Voice agent platform for call centers with low-latency, configurable call flows. | 8 | $0.055/min infrastructure + LLM/voice/telephony | Businesses deploying phone agents quickly |
| 4 | ElevenLabs Agents (ElevenAgents) Voice agents built on ElevenLabs voices, with telephony and tool calling. | 8 | $0.08/call minute (LLM extra) | Brands that need natural, multilingual voices |
| 5 | Pipecat Open-source Python framework for realtime voice and multimodal agents. | 7.9 | Free; Pipecat Cloud from $0.01/min | Developers who want full control of the voice stack |
| 6 | Deepgram Voice Agent API Single API bundling STT, LLM orchestration and TTS for voice agents. | 7.4 | $0.075/min (Standard) | Developers wanting one API for the voice pipeline |
| 7 | OpenAI Realtime API Speech-to-speech model API for low-latency voice agents. | 7.4 | $32/1M audio input tokens, $64/1M output (gpt-realtime-2.1); mini is cheaper | Builders wanting a single speech-to-speech model |
| 8 | Bland Phone-call AI platform with bundled LLM, STT and TTS pricing. | 7.3 | $0.14/min (Start, no platform fee) | High-volume outbound/inbound calling |
| 9 | PolyAI Enterprise voice agents for customer service, delivered as a managed service. | 6.8 | Custom (sales-led) | Large enterprises replacing IVR |
| 10 | Synthflow Enterprise voice AI platform for contact centers. | 6.7 | From $30,000/yr (enterprise contracts) | Contact centers wanting a managed platform |
| 11 | Hume EVI Empathic speech-to-speech voice interface with emotional expression. | 6.5 | Free tier existed; pricing now in-app only | Apps where tone and empathy matter |