| Vistara AI India | ₹2.00–₹3.00 per connected minute | All-in: Indian telephony, speech recognition, AI model and voice. Unanswered calls free. No setup fee. | Self-serve sign-up, no-code agent builder, Excel upload campaigns. ₹150 free credit. | REST API, webhooks, Google Sheets, HubSpot, Salesforce, Zoho, copy-paste prompts for AI coding tools. | Indian businesses running Hindi/Hinglish outbound or inbound calls at volume on a per-minute INR budget. |
| Bolna India | $0.06/min (≈ ₹5.5) pay-as-you-go, plus telephony and a platform fee | Speech recognition, LLM and voice when using bundled models. Bolna adds telephony and a platform fee per minute but does not publish those amounts. | Self-serve; $5 free credits; minimum top-up $10. | API-first, bring-your-own model keys, dashboard. | Developers who want to choose and tune their own speech and LLM models. |
| Ringg AI India | ₹6 per connected minute (voice agents) | Ringg says its voice rate includes its own Indian speech recognition (Parrot), TTS, a fine-tuned LLM and telephony. | Self-serve with free credits on sign-up. | Voice, chat/WhatsApp and browser agents in one product; on-prem on enterprise plans. | Teams that want voice and WhatsApp/chat agents from one vendor. |
| Caller.Digital India | ₹9.42/min (pay-as-you-go, bring your own AI keys) or ₹10.15/min (Growth, AI models included) | Growth includes speech recognition, LLM and TTS. On pay-as-you-go you bring and pay for your own AI model keys. | Self-serve DIY plans; Basic plan includes 30 concurrent calls (₹352/month per extra line). | Bring-your-own-key AI models; LiveKit-based infrastructure. | Teams that already hold their own AI model contracts and want an Indian calling layer. |
| Gnani.ai India | Not published (demo-led sales) | Not published. | Demo-led for enterprise agents; developer API sign-up for speech APIs. | Cloud, private cloud, on-premise or air-gapped deployment; collections, KYC and support agents; voice biometrics. | Large banks and insurers that need on-premise deployment or voice biometrics. |
| SquadStack India | Not published (quoted per use case) | Not published. | Sales-led: discovery call, proposal, then a pilot. | Set up by SquadStack as part of the engagement. | Enterprises that want an outsourced, managed outbound programme rather than a self-serve tool. |
| Verloop.io India | Not published (demo-led sales) | Not published. | Sales-led onboarding. | Helpdesk and support-channel integrations. | Support teams automating inbound chat and voice queries. |
| Exotel India | Voicebot pricing not published | Not published. | Sales-led for AI voice agents. | Telephony APIs, IVR, contact-centre software, CRM connectors. | Businesses that need numbers, IVR and a human-agent contact centre. |
| Ozonetel India | Voicebot pricing not published | Not published. | Sales-led. | Contact-centre, IVR and CRM integrations. | Contact centres with human agents that want to add automation. |
| Bland AI United States | $0.12–$0.14/min (≈ ₹11–₹13) | Talk time. Telephony is billed separately through your carrier or Bland's built-in Twilio at pass-through cost. | Self-serve; Start plan capped at 100 calls/day and 10 concurrent calls. | API, webhooks, bring-your-own telephony. | US and English-language calling at enterprise scale. |
| Vapi United States | $0.05/min platform fee + model and telephony costs | Hosting only. Speech recognition, LLM, voice and telephony are billed at provider cost. | Self-serve for developers; $5 free credits. | API, SDKs, SIP, WebSockets and WebRTC. | Engineering teams assembling their own voice stack. |
| Retell AI United States | $0.07–$0.31/min (Retell's published range) | Each component priced separately; no charge for SIP trunking or custom telephony. | Self-serve; $10 free credits and 20 free concurrent calls. | API, SDKs, SIP trunking, no-code agent builder. | Developers who want a builder UI on top of a pick-your-model stack. |