Voice-agent platforms, compared as one production bill.
Side-by-side comparisons of pricing, tool calling, telephony, evals, and enterprise controls across the platforms teams evaluate most.
Compare voice-agent platforms
vs ElevenLabs
ElevenLabs Conversational AI is a voice-first agent layer built on the company's well-known TTS.
- ElevenLabs
- $0.08/min
- headline rate
- SpeechifyAI
- Quoted per contract
- all-in
vs Vapi
Vapi is a flexible, API-driven way to build voice agents, but its $0.05/min is an orchestration fee; you add STT, LLM, TTS, and telephony on top…
- Vapi
- $0.05/min
- headline rate
- SpeechifyAI
- Quoted per contract
- all-in
vs Retell
Retell gives developers low-latency voice infrastructure with itemized pricing: voice infra at $0.055/min plus TTS, LLM, and telephony add up to…
- Retell
- $0.11/min
- headline rate
- SpeechifyAI
- Quoted per contract
- all-in
vs Bland
Bland is known for high-volume outbound with a clean all-in number ($0.11-0.14/min), but the lower rate sits behind a $299-499/mo platform fee.
- Bland
- $0.11–0.14/min
- headline rate
- SpeechifyAI
- Quoted per contract
- all-in
vs Deepgram
Deepgram's Voice Agent API bundles STT, LLM, and TTS at $0.075/min: strong, low-level infrastructure.
- Deepgram
- $0.075/min
- headline rate
- SpeechifyAI
- Quoted per contract
- all-in
vs Cartesia
Cartesia (Line) is ultra-low-latency voice infrastructure with a $0.06/min headline, but telephony adds $0.014/min and the "LLM included" is a…
- Cartesia
- $0.06/min
- headline rate
- SpeechifyAI
- Quoted per contract
- all-in
vs Synthflow
Synthflow's main pricing page leads with enterprise contracts starting at $30,000/year; compare pages surface a $0.08/min trial rate with $10 free…
- Synthflow
- $0.08/min
- headline rate
- SpeechifyAI
- Quoted per contract
- all-in
vs Hume
Hume's EVI is an expressive, empathic speech-to-speech model priced $0.04-0.07/min, but that excludes the LLM (billed separately by your provider) and…
- Hume
- $0.04–0.07/min
- headline rate
- SpeechifyAI
- Quoted per contract
- all-in