Compare AIOnCalls's flat-rate pricing to Retell AI's stacked per-minute component pricing — voice infrastructure, text-to-speech, LLM, and knowledge base billed separately.
Retell AI bills voice infrastructure, text-to-speech, the LLM, knowledge base usage, and phone numbers as separate line items. AIOnCalls uses one shared credit wallet across a simple plan ladder.
Retell AI's Pay-As-You-Go pricing starts at $0.07–$0.31/minute for voice agents, built from stacked component rates — Retell Voice Infrastructure at $0.055/minute, text-to-speech at $0.015/minute, LLM costs from $0.001–$0.32/minute depending on model, plus add-ons like a $0.10 branded caller ID fee and $2/month per phone number. AIOnCalls uses one flat monthly rate with a single credit wallet, so the final bill isn't assembled from five separate meters.
| Feature | AIOnCalls | Retell AI |
|---|---|---|
| Starting price | $49/month, flat | $0.07–$0.31/minute usage-based (Pay-As-You-Go), built from stacked component rates |
| Pricing model | Simple credit wallet, one rate | Stacked component pricing — voice infrastructure, text-to-speech, LLM, knowledge base, caller ID, and phone numbers billed separately |
| CRM-triggered calling | Yes, built in | Not documented on Retell AI's public pricing page |
| AI Conversation Memory | Yes, built in | Not documented on Retell AI's public pricing page |
| CRM integrations | HubSpot, Salesforce, Zoho + 2,000 apps via Zapier | HubSpot, plus Make, Twilio, Vonage, n8n, and Go High Level |
| Languages supported | 90+ | Not specified on Retell AI's public pricing page |
| REST API & Webhooks | Yes, on Business plan and above | Yes, included on the base Pay-As-You-Go tier |
| Target user | Business teams, no-code setup with developer API available | Both developers (API/webhooks) and business users (pre-built templates) |
Retell AI pricing reflects its publicly published pricing page as of August 2026 (Pay-As-You-Go: $0.07–$0.31/min voice agents, component rates including $0.055/min voice infrastructure and $0.015/min text-to-speech; Enterprise is custom). Verify current rates directly with Retell AI.
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