ElevenLabs Agents vs Synthflow
A side-by-side comparison of capabilities, autonomy, integrations, and pricing to help you choose.
Short answer: choose ElevenLabs Agents if you want platform for building real-time voice and chat ai agents (Supervised agent, subscription); choose Synthflow if you want no-code platform to build and run ai voice agents for phone calls (Autonomous agent, usage).
| ElevenLabs Agents | Synthflow | |
|---|---|---|
| What it is | Platform for building real-time voice and chat AI agents | No-code platform to build and run AI voice agents for phone calls |
| Type | platform | platform |
| Autonomy | Supervised agent | Autonomous agent |
| Pricing | subscription · Free tier; paid plans from ~$5/mo + usage | usage · ~$0.09/min voice engine (LLM + telephony billed on top); free PAYG tier |
| Best for | developers, mid-market, enterprise | smb, mid-market, enterprise, developers |
| Deployment | saas, api | saas, api |
| Modalities | voice, text, api | voice, text, api |
| Models | proprietary, model-agnostic, claude, gpt, gemini | model-agnostic, gpt, proprietary |
| Protocols | mcp, function-calling, rest-api | rest-api, function-calling |
| Integrations | Twilio, Genesys, Vonage, Telnyx, Plivo, HubSpot | Twilio, Telnyx, RingCentral, Vonage, Salesforce, HubSpot |
| Capabilities | 4 documented | 4 documented |
ElevenLabs Agents
- +LLM-agnostic on top of best-in-class proprietary text-to-speech and its own speech-to-text
- +Strong first-class telephony story (Twilio, SIP, multiple carriers) with sub-second latency
- +Flexible build paths: no-code builder, SDKs, WebSocket API, function calling, and MCP
- -Layered, recently changed pricing (bundled minutes plus overage plus pass-through LLM cost) makes total cost hard to predict
- -Autonomy is bounded to configured tools, not autonomous out of the box
Synthflow
- +Genuinely no-code visual builder with fast setup, a common point of praise in reviews
- +In-house telephony plus broad SIP and CRM integration, with a white-label and reseller program for agencies
- +Natural low-latency voices (ElevenLabs) and a free pay-as-you-go tier to start
- -Per-minute cost adds up at volume once LLM and telephony are stacked on the voice-engine rate
- -LLM choice is OpenAI-centric in practice rather than fully model-agnostic
Which should you choose?
ElevenLabs Agents is platform for building real-time voice and chat ai agents, best for developers, mid-market, enterprise. Synthflow is no-code platform to build and run ai voice agents for phone calls, best for smb, mid-market, enterprise, developers. The right choice depends on the autonomy level you want, your existing integrations, and your budget, all compared above.