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Retell AI Alternative · India

Retell AI alternative in India —
Indian languages, rupee billing

Retell AI does excellent English voice agents with strong testing tools. For Indian languages, rupee billing with GST, Indian numbers and WhatsApp alongside calls, ThinnestAI was built around those needs.

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Retell AI alternative in India

India-first, not India-only: voice in all 22 scheduled Indian languages plus 50 languages for other markets. Not in India? See the global comparison.

ThinnestAIIncluded
22 scheduled Indian languages
Rupee billing with GST
Indian numbers
Calling hours per campaign
Curated models and voices

Features

Feature comparison

FeatureRetellThinnestAI
Indian languagesDepends on the providers you choose Voice in all 22 scheduled Indian languages, native script
Price modelFrom $0.07/min, varies by model and voice, in US dollarsOne flat per-minute rate in rupees — see pricing
GST invoices
Call simulation and testing Mature (Retell strength)Test chat, browser calls and a full call log
Indian numbersBring your own carrier Buy from us, or import Plivo, Vobiz, Twilio or Telnyx
Security and dataSOC 2 and HIPAA programmesNo certification published; data for India workspaces stored in Mumbai
ChannelsVoice and chatPhone, WhatsApp, website chat, Telegram — one memory

Where it differs

Languages, numbers and calling rules, built in

Indian languages

01

Indian languages

Voice in all 22 scheduled Indian languages in native script, with Hinglish code-switching, off one knowledge base.

Indian numbers

02

Indian numbers

Buy an Indian number from us, or import your Plivo, Vobiz, Twilio or Telnyx number.

Calling rules

03

Calling rules

You set calling hours per campaign on the called person’s clock (TRAI allows 9am–9pm); data for India workspaces is stored in Mumbai. Telemarketer registration and consent stay your responsibility.

Honest fit

When Retell is the right call

Retell wins when:

  • —US or EU operations with HIPAA and SOC 2 as hard requirements — we do not publish either.
  • —Call-simulation tooling matters — Retell’s testing suite goes deeper.
  • —Your customers are English-first.
  • —You want client SDKs and widgets for your own app.

If those describe you, pick Retell.

Pricing

How the bills differ

Retell prices each component separately, so the per-minute cost changes with the model and voice you choose, in US dollars. ThinnestAI is one flat per-minute rate in rupees with GST invoices, phone line included on a number from us. Our current rates are on the pricing page.

FAQ

FAQ

Can I migrate Retell agents to ThinnestAI?

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Yes. System prompts, tool definitions and webhook patterns carry over with light changes. An agent here is configured in a tabbed settings screen (instructions, knowledge, channels, actions, templates, voice, campaigns), so most of the work is pasting the prompt and re-pointing the tools.

Does ThinnestAI have call simulation like Retell?

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Not an equivalent suite. You can talk to your agent in the editor and call it from the browser, and every real call lands in the call log with transcript, recording playback and CSV export. Retell’s simulation tooling goes deeper.

How fast is ThinnestAI on Hindi calls?

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We do not publish a latency figure; carrier-call performance on our stack is not measured yet. Ask for a pilot on your own numbers and traffic and compare directly.

Does ThinnestAI work outside India?

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Yes. International workspaces (US, UK, UAE and elsewhere) store data in London, bill in US dollars and import numbers from Twilio, Telnyx or Plivo. Voice agents speak 50 languages, plus all 22 scheduled Indian languages for India.

Do I need my own model or voice provider keys?

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No. The language model, speech recognition and voices run on our curated, platform-managed stack inside the flat rate. Bringing your own phone number is supported: import a Plivo, Vobiz, Twilio or Telnyx number.

Is there an SDK comparable to Retell’s?

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Not the same. We offer a REST API, an MCP server and signed webhooks, and the web widget is a one-line script tag. Retell ships client SDKs and widgets we do not.

What call analytics does ThinnestAI give?

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A full call log (transcript, recording playback and CSV export on every call) plus campaign connect rate, average talk time and why calls failed: busy, declined, unreachable or voicemail. Signed webhooks fire when a call or campaign finishes, so you can feed your own analytics.

How is ThinnestAI priced in India?

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One flat per-minute rate in rupees with GST invoices, phone line included on a number from us; current rates are on the pricing page. Enterprise volumes are negotiated.

Related

Related

ThinnestAI vs Retell (global)

Complete feature-by-feature comparison.

Vapi alternative in India

For Indian teams evaluating Vapi.

ThinnestAI in India

Indian languages, numbers and rupee billing.

Pricing

Current rates for India and international workspaces.

Start a free pilot

No card required. Build an Indian-language agent and run it on your own traffic.

Start a free pilotFull feature comparison