Features, pricing, and fit
Compare ElevenLabs Agents and Realtime API on voice capabilities, pricing, and fit.
Compare ElevenLabs Agents and OpenAI Realtime for AI phone agents, then match channels, workflows, and deployment models to your call flow.
Voice-first agent platform with visual workflows, custom-model choices, phone/web/mobile deployment, and built-in testing and evaluation.
Teams that need a managed voice library and agent workflows spanning telephony, web, and mobile.
Explore its buying criteria: AI phone agents.
Model-level realtime API for text and audio input/output over WebRTC, WebSocket, or SIP, with function calling.
Product and engineering teams building a spoken application around a realtime model instead of a packaged contact-center product.
Explore its buying criteria: AI phone agents · Voice AI platforms.
ElevenLabs Agents checked 2026-10-09; OpenAI Realtime checked 2026-09-04.
Use the table below to compare each provider’s documented scope.
Before you decide
ElevenLabs Agents: Monthly plans include call minutes and concurrency. LLM usage is billed separately; external telephony providers bill their own carrier charges. Enterprise terms are custom. OpenAI Realtime: Token-based API pricing for text, audio, and image modalities; audio input/output rates are published per million tokens. Ask both vendors to quote the same expected workload, required channels, and implementation scope. Include required subscriptions and usage charges before comparing the total; the listed starting prices alone may cover different work.
The recorded knowledge and data sources for ElevenLabs Agents include Knowledge-base documents from files, URLs and text; Retrieval-augmented generation (RAG). For OpenAI Realtime, they include Not publicly documented. Ask each provider to demonstrate access for the exact systems you use, with permissions, freshness, and failure behavior. A source missing from this directory is not proof that a provider cannot support it.
Use the same representative calls, approved instructions, and escalation rules in both pilots. How does it handle interruption and uncertainty? Which actions can it complete, and which require approval? What context reaches a human during transfer? Record conversation quality, completed tasks, human handoffs, and total cost in the buyer worksheet. Check these specific cautions before launch: ElevenLabs Agents: Voice cloning requires authorization and governance. Budget for LLM usage, external carrier charges, overage and concurrency. Warm transfer messages require native Twilio; SIP REFER requires trunk support and has no warm message. OpenAI Realtime: Not a turnkey contact center. Implement telephony operations, identity, tools, monitoring, evaluation, retention, and escalation.
Record your requirements and pilot results in the buyer worksheet →
Swipe or scroll the table to see every column.
| Criterion | ElevenLabs Agents | Realtime API |
|---|---|---|
| Provider type | Voice agent platform and speech API | Native realtime multimodal model API |
| Best fit | Teams that need a managed voice library and agent workflows spanning telephony, web, and mobile. | Product and engineering teams building a spoken application around a realtime model instead of a packaged contact-center product. |
| Key capabilities | voice library; custom voices; tools; knowledge bases; phone and web agents | audio-to-audio conversation; WebRTC; WebSocket; SIP; tools |
| Team sizes | startup; mid-market; enterprise; developer | startup; mid-market; enterprise; developer |
| Call surfaces | phone / PSTN; SIP; web voice; mobile; API / SDK | WebRTC; WebSocket; SIP; API / SDK |
| Voice stack | Cascaded STT-LLM-TTS using ElevenLabs voices | Native audio input/output with tool calling |
| Telephony | Native Twilio integration; SIP trunks for inbound and outbound calls | SIP connection; carrier integration remains buyer responsibility |
| Call controls | Configurable turn-taking, interruptions and timeouts; Human transfer with channel-specific conference, blind and SIP REFER modes | Not publicly documented |
| Languages | Multilingual voice configuration; verify speech recognition, selected model and voice coverage for each required language. | Not publicly documented |
| Integrations | Client, webhook, code and MCP tools | Not publicly documented |
| Knowledge and data | Knowledge-base documents from files, URLs and text; Retrieval-augmented generation (RAG) | Not publicly documented |
| Pricing model | Monthly plans include call minutes and concurrency. LLM usage is billed separately; external telephony providers bill their own carrier charges. Enterprise terms are custom. | Token-based API pricing for text, audio, and image modalities; audio input/output rates are published per million tokens. |
| Pricing signal | Regular monthly: Free 15 min; Starter $6/75, Creator $22/275, Pro $99/1,238, Scale $299/3,738, Business $990/12,375 min. Extra minutes $0.08; concurrency burst $0.16. LLM and external carrier charges are separate. | GPT-Realtime audio $32 per million input audio tokens and $64 per million output audio tokens. |
| Free plan or trial | Free plan includes 15 minutes. | Not publicly documented |
| What stands out | ElevenAgents combines ElevenLabs voice selection and cloning with visual workflow building, custom LLM options, conversation controls, and evaluation tooling. | GPT-Realtime accepts and returns audio directly, while the Agents SDK supplies transport helpers plus tools, guardrails, handoffs, and session history. |
| Considerations | Voice cloning requires authorization and governance. Budget for LLM usage, external carrier charges, overage and concurrency. Warm transfer messages require native Twilio; SIP REFER requires trunk support and has no warm message. | Not a turnkey contact center. Implement telephony operations, identity, tools, monitoring, evaluation, retention, and escalation. |
Teams that need a managed voice library and agent workflows spanning telephony, web, and mobile.
ElevenAgents combines ElevenLabs voice selection and cloning with visual workflow building, custom LLM options, conversation controls, and evaluation tooling.
Product and engineering teams building a spoken application around a realtime model instead of a packaged contact-center product.
GPT-Realtime accepts and returns audio directly, while the Agents SDK supplies transport helpers plus tools, guardrails, handoffs, and session history.
Verify current pricing, limits, security, and required integrations directly with each provider before purchasing.
Test recognition, speech quality, interruptions, language switching, tool use, and human transfer with your own calls in the required language. Availability can vary by model, plan, and phone route.
DocsBot documents multilingual voice workflows and Japanese support. Verify the exact voice, phone path, and transfer behavior in your pilot. Review DocsBot language information ↗
Other providers’ language claims reflect cited vendor material; confirm Japanese and other required languages directly with each provider.
Listing does not imply endorsement or a performance guarantee. This directory is published by DocsBot. Editorial policy
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