Agora Conversational AI Engine vs OpenAI Realtime API
How the two platforms compare on pricing, live demos, calls, integrations, and setup — highlighted where they differ.
Developer API
Agora Conversational AI Engine
Realtime conversational infrastructure for low-latency voice agents in apps, devices, phone experiences, and avatar interfaces.
Developer API
OpenAI Realtime API
Realtime speech-to-speech API for building low-latency voice agents over WebRTC, WebSocket, or SIP.
Highlighted rows differ between these picks
| Attribute | Agora Conversational AI Engine | OpenAI Realtime API |
|---|---|---|
| Platform type | Developer API | Developer API |
| Pricing | Usage Based pricing Usage-based realtime media, conversational AI, model, and optional service costs | Usage Based pricing $32/M audio input tokens and $64/M audio output tokens for gpt-realtime |
| Test it | Open live demo | Open live demo |
| Calls | — | Inbound, Outbound |
| Human handoff | Yes | Yes |
| Setup difficulty | Technical | Technical |
| Use cases | Custom Voice Apps Education Customer Support Interactive Entertainment | Customer Support Appointment Scheduling Lead Qualification Custom Voice Apps |
| Useful for |
|
|
| Integrations | ||
| Agora RTC | — | |
| Speech providers | — | |
| LLMs | — | |
| TTS providers | — | |
| Virtual avatars | — | |
| Custom applications | — | |
| WebRTC | — | |
| WebSocket | — | |
| SIP | — | |
| OpenAI Agents SDK | — | |
| +2 more across these tools — see each profile for the full list. | ||
Platform type
- Agora Conversational AI Engine
- Developer API
- OpenAI Realtime API
- Developer API
Pricing
- Agora Conversational AI Engine
Usage Based pricing
Usage-based realtime media, conversational AI, model, and optional service costs
- OpenAI Realtime API
Usage Based pricing
$32/M audio input tokens and $64/M audio output tokens for gpt-realtime
Test it
- Agora Conversational AI Engine
- Open live demo
- OpenAI Realtime API
- Open live demo
Calls
- Agora Conversational AI Engine
- —
- OpenAI Realtime API
- Inbound, Outbound
Human handoff
- Agora Conversational AI Engine
- Yes
- OpenAI Realtime API
- Yes
Setup difficulty
- Agora Conversational AI Engine
- Technical
- OpenAI Realtime API
- Technical
Use cases
- Agora Conversational AI Engine
- Custom Voice AppsEducationCustomer SupportInteractive Entertainment
- OpenAI Realtime API
- Customer SupportAppointment SchedulingLead QualificationCustom Voice Apps
Useful for
- Agora Conversational AI Engine
- • Realtime application developers
- • Global voice experiences
- • Multimodal and avatar agents
- • Provider-flexible architectures
- OpenAI Realtime API
- • Developer teams
- • Speech-to-speech agents
- • Tool-using voice workflows
- • Custom web and phone experiences
Integrations
| Agora Conversational AI Engine | OpenAI Realtime API | |
|---|---|---|
| Agora RTC | — | |
| Speech providers | — | |
| LLMs | — | |
| TTS providers | — | |
| Virtual avatars | — | |
| Custom applications | — | |
| WebRTC | — | |
| WebSocket | — | |
| SIP | — | |
| OpenAI Agents SDK | — |
+2 more across these tools — see each profile for the full list.
What would these cost to run?
Enter your call volume once and see Agora Conversational AI Engine and OpenAI Realtime API priced at the same usage, ranked alongside every other platform.