What is a WhatsApp RAG chatbot?
A WhatsApp RAG chatbot uses retrieval-augmented generation: before the AI writes a reply, it retrieves the relevant facts from your data - catalogue, FAQs, pricing, policies - and answers only from what it found. A plain LLM chatbot answers from its general training and will confidently improvise. A RAG chatbot answers from your knowledge base, which is why InboxWA can validate every deployment against an eval suite and guarantee an 85%+ pass rate on our Data + RAG setup service (see how we measure it).
On WhatsApp this matters more than on a website widget. It is where Indian buyers ask "price kya hai?", "COD available?", "delivery kitne din?" at 11 pm - and where a wrong answer costs the order.
Prompt mode vs RAG mode: which one do you need?
InboxWA ships AI in two modes, and both are included in the subscription - Starter (Rs999/mo) gets prompt mode, Growth (Rs2,499/mo) gets full RAG:
- Prompt mode (Starter, Rs999/mo). You describe your business, tone and rules; the AI replies in your voice, handles greetings, qualifies leads and answers general questions. 1,000 AI calls/mo included. Right for small teams that mostly need instant, on-brand first responses.
- RAG mode (Growth, Rs2,499/mo). The AI is grounded on your actual catalogue, FAQs and pricing, auto-replies with sources, and escalates to a human when unsure. 2,500 AI calls/mo included, plus 25,000 contacts, 10 seats, unlimited chatflows, webhooks and a built-in HubSpot contact push (Perfex and other CRMs are scoped integrations). Right for D2C brands and SMBs where answers must match the price list.
You can start in prompt mode and move to RAG later - the pricing page has the full plan matrix.
How much does a WhatsApp AI chatbot cost in India in 2026?
Here is the honest comparison. The figures below were verified in July 2026 from the vendors' own pricing pages and help centres; the short version is that InboxWA includes customer-facing AI from Rs999/mo, while on Wati it starts effectively at Rs5,999/mo and on AiSensy at roughly Rs5,000/mo (base plan + add-on).
| Platform & plan | Monthly price (ex-GST) | Customer-facing AI included? | AI responses included / mo | Meta fee markup |
|---|---|---|---|---|
| InboxWA Starter | Rs999 | Yes - prompt-mode AI in your tone | 1,000 AI calls (overage Rs0.25) | Zero - Meta's exact rates |
| InboxWA Growth | Rs2,499 | Yes - RAG on your catalogue + human escalation | 2,500 AI calls (overage Rs0.20) | Zero - Meta's exact rates |
| Wati Growth | Rs2,499 | No - AI Support Agent (KnowBot) is Pro/Business-only | 0 | ~20% (third-party BSP measurements) |
| Wati Pro | Rs5,999 | Yes - AI Support Agent | 250 free responses | ~20% (third-party BSP measurements) |
| AiSensy Basic + AI Agent add-on | Rs1,500 + Rs3,500 = Rs5,000 | Only via the Rs3,500/mo add-on | 3,500 AI messages | ~26% above Meta list rates (2026 rate cards) |
As of July 2026. Sources: wati.io/pricing, Wati's help centre on the AI Support Agent (KnowBot), aisensy.com/pricing and AiSensy's AI Agents page. Markup estimates from independent 2026 BSP rate-card measurements; neither vendor publishes an official markup figure. Vendor prices change - always confirm on their pages.
Why our AI never invents a price
LLMs hallucinate, and a hallucinated discount on WhatsApp is a legally awkward promise made in writing. So InboxWA takes price generation away from the model entirely. When a customer asks a price or availability question, the answer comes from a deterministic lookup against your synced catalogue (Shopify sync supported) - the AI formats the reply, but the number is fetched, never generated. An AI that guesses prices is a liability, not a feature; ours looks prices up.
The second safety layer is the confidence gate. Every candidate reply is scored; if retrieval did not surface a confident answer, the AI does not reply at all. The conversation routes to your team inbox with full chat context, an agent gets assigned, and the customer never repeats themselves. This is what separates "AI that helps sales" from "AI your team apologises for".
What does an AI call cost? (Fresh = 1, cached = 0.5)
Most platforms meter AI vaguely ("credits", "sessions") and publish top-up prices only in help articles. InboxWA meters one thing: the AI call. A fresh generated answer costs 1 call; a cached answer to a repeat question costs 0.5, so common questions get cheaper as your bot matures. Overage is published up front and there is no per-seat pricing anywhere:
| Plan | Price / mo (ex-GST) | AI calls included | Overage per call | AI mode |
|---|---|---|---|---|
| Starter | Rs999 | 1,000 | Rs0.25 | Prompt mode |
| Growth | Rs2,499 | 2,500 | Rs0.20 | RAG + human escalation |
| Scale | Rs4,999 | 5,000 | Rs0.15 | RAG, up to 3 numbers, RBAC |
Annual billing saves about two months (~16.7%). Compare: Wati tops up its separate AI Co-pilot credits at $60 per 1,000, and AiSensy's AI-message overage rate is not published, as of July 2026.
Built for India: Hinglish, DPDP, zero Meta-fee markup
Meta's published India rates from January 2026 are Rs0.8560 per marketing conversation, Rs0.1150 utility and Rs0.1250 authentication (user-initiated service conversations are free, first 1,000/mo) - see Meta's own pricing documentation. InboxWA passes these through a wallet at Meta's exact rates. If Meta charges Rs0.8560 for a marketing conversation, that is exactly what leaves your wallet - InboxWA adds zero markup. On 10,000 marketing conversations that is Rs8,560, versus Rs10,700 on a platform with a 25% markup: Rs2,140 saved every month before you even look at subscription fees. Full maths in our API pricing comparison.
Beyond the fees: the AI replies in Hinglish by default, data is hosted in India, the platform is DPDP Act aligned with an opt-in consent ledger per contact, and we connect to Meta's Cloud API directly (no reseller). The same AI plugs into abandoned cart recovery, COD verification to cut RTO, order tracking and win-back flows.
When Wati or AiSensy might suit you better
Credit where due. Wati is a mature, widely-adopted BSP (G2 4.6/5 from 482 reviews as of July 2026) with a large integration surface - Salesforce on its Business tier, HubSpot on Pro - and its AI Support Agent can ingest PDFs up to 200 MB. If you are an enterprise standardising on Salesforce at Rs16,999/mo, Wati is a fair shortlist. But users on Trustpilot (~3.5/5, ~240 reviews) report cancellation friction and bills 30-50% above sticker once seat fees, session overages and the unpublished ~20% Meta-fee markup stack up.
AiSensy has a genuinely free entry tier (API access at Rs0 plus per-message charges) and a strong Click-to-WhatsApp ads manager, attractive for broadcast-first teams. But chatbots and AI are both paid add-ons - Rs2,500/mo for 5 chatbot flows, Rs3,500/mo for the AI Agent - and users on Trustpilot and G2 (4.3/5 from 110 reviews) report support delays and platform instability. Our detailed teardowns: Wati alternative and AiSensy alternative.
Verdict: who should pick InboxWA's AI chatbot?
If you are an Indian SMB or D2C brand that wants a WhatsApp chatbot trained on your own data - with prices it cannot hallucinate, Hinglish it speaks natively, and a human takeover when confidence drops - InboxWA gives you that from Rs999/mo, with RAG at Rs2,499/mo and zero markup on Meta fees. Pick Wati if you need Salesforce-grade enterprise integrations and accept the metered AI tiers; pick AiSensy if you only broadcast and do not need AI at all. For everyone in between, paying Rs5,000-5,999/mo to unlock what InboxWA includes at Rs999-2,499/mo is hard to justify.
Want the knowledge base built for you? Our Data + RAG setup (Rs49,999, 7-10 days) carries an 85%+ eval pass-rate guarantee; custom integrations start at Rs1,49,000. Or talk to the founder - founder-run, New Delhi, and [email protected] is answered by the people who wrote the code.
Frequently asked questions
How much does a WhatsApp AI chatbot cost in India in 2026?
On InboxWA, AI is included in every plan: Starter at Rs999/mo bundles 1,000 AI calls with prompt-mode AI, and Growth at Rs2,499/mo bundles 2,500 AI calls with RAG grounded on your own catalogue. As of July 2026, comparable customer-facing AI on Wati requires the Rs5,999/mo Pro plan (250 AI responses included) and on AiSensy a Rs3,500/mo add-on on top of a base plan. All prices ex-GST.
Can I train a WhatsApp chatbot on my own data?
Yes. InboxWA's Growth plan (Rs2,499/mo) uses retrieval-augmented generation (RAG): the AI is grounded on your catalogue, FAQs and pricing, so answers come from your data, not a generic model. If you want it done for you, the Data + RAG knowledge-base setup service (Rs49,999) ships in 7-10 days with an 85%+ eval pass-rate guarantee.
Will the AI quote wrong prices to my customers?
No. On InboxWA, price and availability answers come from deterministic lookups against your synced catalogue; the language model never generates a price. If a question falls outside what the system can answer confidently, the chat is handed to a human with full context instead of the AI guessing.
Does the WhatsApp chatbot understand Hinglish?
Yes. The AI reads and replies in Hinglish and mixed Hindi-English, in your brand tone. Most Indian WhatsApp buyers type in Hinglish, so on InboxWA this is default behaviour on every plan, not a paid language pack.
What is an AI call, and how many are included?
One fresh AI-generated answer costs 1 AI call; a cached answer to a repeat question costs 0.5. Starter includes 1,000 AI calls/mo (overage Rs0.25/call), Growth 2,500 (Rs0.20), Scale 5,000 (Rs0.15). There is no per-seat charge on top.
What happens when the AI does not know the answer?
A confidence gate scores every reply before it is sent. Low-confidence questions are not answered by the AI at all: the conversation routes to your team inbox with the full chat context, so a human continues without the customer repeating themselves.
Is there a free trial of the WhatsApp AI chatbot?
Yes. InboxWA offers a 7-day free trial of Growth features, including the RAG chatbot, with no card required. After that, plans start at Rs999/mo ex-GST, and annual billing saves about two months (roughly 16.7%).
Put a grounded AI on your WhatsApp number this week
7-day free trial of Growth features, including the RAG chatbot. No card required. Plans from Rs999/mo ex-GST, zero markup on Meta fees.