Chatbots are among the most misestimated projects — in both directions. Some expect a few hundred dollars; others brace for six figures. The truth is that cost depends entirely on which kind of bot you need, and the difference between the two kinds is fundamental.
The short answer: a simple rule-based bot costs $3,000 – $10,000. An AI bot built on a language model runs $15,000 to $60,000 — plus an ongoing monthly running cost that most quotes never mention.
The two kinds: the difference that decides everything
Rule-based bots. They work from predefined menus and scripts: "press 1 for order status." They answer precisely what they were designed for and fail completely on anything outside the script. Cheap, quick to deploy, and sufficient if your customers' questions are repetitive and finite.
LLM-based bots. Built on a large language model, they understand free-form phrasing and answer from your own content. More expensive and more complex, but they handle questions you never anticipated — and this is what people usually mean today by "AI chatbot."
| Criterion | Rule-based | LLM-based |
|---|---|---|
| Upfront cost | $3,000 – $10,000 | $15,000 – $60,000 |
| Monthly running cost | $50 – $300 | $300 – $3,000 |
| Understands free-form phrasing | ❌ | ✅ |
| Answers from your documents | Limited | ✅ |
| Answer predictability | Very high | Requires tuning |
| Delivery time | 2 – 5 weeks | 6 – 16 weeks |
Cost table — 2026
| Tier | What it covers | Cost | Timeline |
|---|---|---|---|
| Rule-based bot | Fixed scripts, FAQs | $3,000 – $10,000 | 2 – 5 weeks |
| Basic AI bot | Answers from your content, one channel | $15,000 – $30,000 | 6 – 10 weeks |
| Integrated AI bot | + system integration, multi-channel, human handoff | $30,000 – $60,000 | 3 – 5 months |
| Enterprise platform | + multiple languages, analytics, permissions, auditing | $60,000+ | 5 – 9 months |
Indicative estimates. Cost follows the number of integrations, channels, and the accuracy level required.
The cost most quotes omit: operations
An AI bot charges you per conversation, because every message consumes tokens from the language model provider. This is an ongoing item that does not end at delivery.
| Item | Monthly cost |
|---|---|
| Language model calls | $100 – $2,000 |
| Vector database (searching your content) | $30 – $300 |
| Hosting | $50 – $400 |
| Monitoring and continuous tuning | $200 – $1,500 |
Realistic total: $380 – $4,200 per month depending on conversation volume.
How do you estimate model cost? The rough formula: monthly conversations × average messages per conversation × cost per call. A bot handling 3,000 monthly conversations averaging 6 messages typically consumes between $100 and $500 monthly — rising with longer context and more capable models.
A question you must ask: "roughly what will each conversation cost me?" Anyone who cannot answer that has not built an AI bot in a real production environment.
The specific challenges of Arabic
This is what distinguishes a chatbot project in our market, and what an inexperienced provider overlooks:
Dialects. Your customer may write in Modern Standard Arabic, Saudi, Egyptian, or Gulf dialect — and may mix them within a single sentence. Modern models handle this well, but testing must cover your actual audience's dialects, not MSA alone.
Arabizi. Many users write Arabic in Latin letters and numerals ("3ayez a3rf"). A bot that cannot handle this fails with a large share of your audience.
Diacritics and spelling variation. Arabic is usually written without diacritics, and common variations (hamza forms, taa marbuta) must not break comprehension.
RTL rendering. The chat interface itself needs correct right-to-left support, including Arabic and English mixed within one message.
Accuracy matters more than fluency. A bot that answers in beautiful Arabic with wrong information is worse than one that says "I don't know." Always require a human handoff mechanism when the bot's confidence drops.
When does a bot earn its cost? Calculate it yourself
Monthly saving = repetitive enquiries × share the bot can resolve × average cost per enquiry
An illustrative example: 2,000 monthly enquiries, the bot resolves 60%, average handling cost of $3 each:
2,000 × 0.60 × 3 = $3,600 saved monthly
Against an AI bot costing $25,000 with $800 monthly running cost, net saving is roughly $2,800 monthly — recovering the investment in about 9 months.
The numbers above are illustrative. Use your own. And if you do not know how many repetitive enquiries you receive monthly, start by measuring that before any decision — a bot serving 200 enquiries monthly rarely justifies $25,000.
Cheaper alternatives
- A well-written FAQ page — resolves a large share of repetitive enquiries at near-zero cost. Always start here.
- A rule-based bot on WhatsApp — $3,000–$8,000, sufficient if your questions are finite and predictable.
- An off-the-shelf support tool — starts at tens of dollars monthly, and many include a built-in bot.
- A custom bot earns its cost when enquiry volume is high, your content is specialised, or you need integration with internal systems.
Related reading
-
AI for business — evaluating whether an AI use case is worth building at all.
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RAG and AI knowledge bases — how a bot answers from your own content.
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What AI costs to run — the ongoing cost in detail.
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Choosing an AI model for Arabic — evaluation criteria and testing methodology.
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PDPL compliance — passing data to an external model is a transfer.
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API security — securing the layer your bot connects to.
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MVP or full product? — start with a narrow-scope bot before scaling.
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E-commerce cost in Saudi Arabia — the bot as a layer on top of your store.
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In-house maintenance or a contract? — the ongoing cost of running a bot.
Frequently asked questions
How much does a simple chatbot for my website cost?
A rule-based bot working from fixed scripts costs between $3,000 and $10,000 and deploys in 2 to 5 weeks, with $50–$300 monthly running cost. It is sufficient if your customers' questions are repetitive and limited in number.
What is the difference between a rule-based and an AI bot?
Rule-based follows preprogrammed scripts and fails outside them, but is cheap and entirely predictable. AI-based is built on a language model that understands free-form phrasing and answers from your content, but costs more and needs tuning and ongoing monitoring to keep answers accurate.
What does running the bot cost monthly?
Between $380 and $4,200 monthly for an AI bot depending on conversation volume, covering model calls, vector database, hosting, and tuning. A rule-based bot is far cheaper: $50–$300 monthly. Model cost rises proportionally with conversation count.
Does the bot handle Arabic dialects?
Modern models handle Gulf, Egyptian, and Levantine dialects well, but quality varies. What matters most is that testing covers your actual audience's dialects and Arabizi (Arabic in Latin script), not MSA alone. Ask your provider for real testing in your customers' dialect before committing.
What if the bot gives wrong information?
This is the primary risk with AI bots. Three practices reduce it: restricting the bot to answer only from your approved content, setting a confidence threshold below which it hands off to a human, and periodically reviewing conversation logs. Human handoff is not an optional extra but a necessity.
How long does deployment take?
Rule-based bot: 2–5 weeks. Basic AI bot: 6–10 weeks. Bot integrated with your systems: 3–5 months. Multilingual enterprise platform: 5–9 months. Preparing your content and documents in an organised form is what most affects the timeline.
Conclusion
A chatbot costs between $3,000 for a rule-based bot and $60,000 for an integrated AI platform — plus ongoing monthly running costs that most quotes omit.
Start by measuring how many repetitive enquiries you actually receive. If it is a few hundred monthly, a good FAQ page or a rule-based bot will serve you. An AI bot earns its cost at higher volumes or with specialised content.
Want an accurate estimate for your situation? Get in touch for a free assessment — including a straight opinion if a bot is not worthwhile at your current size. See our AI solutions services.