ThinnestAI vs Exotel
Not a versus — use both. Exotel is the SIP carrier, ThinnestAI is the AI agent on top.Exotel is India's leading cloud telephony carrier. ThinnestAI is the voice AI agent brain. They work best together — not against each other.
You need the AI conversation layer — LLM, STT, TTS, flow editor, dashboards, INR billing. Wire Exotel as your SIP carrier underneath via BYOK.
You only need PSTN connectivity, click-to-call, basic IVR and call recording — no LLM, no real conversation. Exotel's CCaaS does this without an AI platform.
You're outside India — Exotel is India-only. Use Twilio + ThinnestAI, or Plivo/Telnyx as your carrier with ThinnestAI on top.
- Exotel is a carrier. ThinnestAI is a voice AI platform. They are not direct competitors — most customers use them together.
- Exotel's voice-bot / AI agent layer is thin compared to specialist voice AI platforms. That's where ThinnestAI fits on top.
- Recommended setup: Exotel (or Vobiz / Twilio) as your SIP carrier, ThinnestAI as your agent brain via BYOK phone integration.
Pricing note
Exotel's business phone plans start around ₹9,999 for 5 months with 3 agents — credit-based (₹1 = 1 credit). They do not publish a per-minute rate for AI voice agents; voice bot pricing is quote-based. ThinnestAI is ₹1.5/min for the voice AI platform layer. A typical customer pairs ThinnestAI (agent brain) with Exotel / Vobiz / Twilio (carrier + phone numbers).
Feature-by-feature comparison
| Feature | ThinnestAI | Exotel |
|---|---|---|
| Core product | Voice AI agent platform | Cloud telephony + IVR + carrier |
| AI agent flow editor | Best-in-class drag-and-drop for LLM agents | IVR-style flow, less polished for LLM agents |
| BYOK LLM / STT / TTS | Full BYOK | Limited integrations |
| India PSTN coverage | Via Exotel / Vobiz / Twilio BYOK | Native carrier — this is Exotel's core strength |
| AI per-minute pricing | Flat ₹1.5/min published | Not publicly disclosed |
| Contact-center features | Voice agents | Full CPaaS + CCaaS suite |
You need an Indian cloud telephony carrier
- You need +91 phone numbers with SIP trunking at carrier scale.
- You need IVR, call recording, call tracking, dialer, call analytics.
- You want one SOC 2-compliant vendor for both telephony and basic voice bots.
- You value Exotel's 7,000+ customer track record and carrier relationships.
You want a modern voice AI platform — with Exotel as the carrier
- Exotel's voice-bot layer is thin. ThinnestAI is a dedicated voice AI platform.
- BYOK flexibility — pick your own LLM, STT, TTS per agent.
- No-code flow editor designed for LLM agents, not IVR menus.
- You can still use Exotel as your SIP carrier under ThinnestAI via BYOK — this is complementary, not competitive.
Try ThinnestAI free
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Frequently asked questions
Should I pick Exotel or ThinnestAI?
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It's usually not either/or. Exotel is a telco; ThinnestAI is a voice AI platform. Most production setups use a carrier (Exotel, Vobiz or Twilio) for PSTN plus ThinnestAI for the agent brain. We complement each other.
Can I use Exotel's SIP trunk with ThinnestAI?
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Yes via BYOK SIP. ThinnestAI supports Twilio and Vobiz BYOK today; Exotel SIP trunk integration is supported on request.
Is Exotel's own voice bot good enough?
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For basic IVR-style flows with Hindi/English/Hinglish, yes. For advanced LLM-driven agents with branching, tool calls, multi-provider routing and Indic language quality, a specialist voice AI platform like ThinnestAI is purpose-built for that layer.
Can ThinnestAI replace Exotel entirely?
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No — we are not a telco. You still need someone to provide your +91 numbers, SIP trunks and carrier relationships. We recommend using Exotel, Vobiz or Twilio for that layer.