5 Must-Have LLM-Powered AI Chatbots for Web Design
Creating an engaging, intelligent conversation experience on your website doesn’t have to mean writing lines of code, hunting for plugins, or paying...
Creating an engaging, intelligent conversation experience on your website doesn’t have to mean writing lines of code, hunting for plugins, or paying a fortune for a bespoke solution. Today’s LLM‑powered chatbots can power everything from lead capture and customer support to e‑commerce recommendations and interactive tutorials—all through a single, easy‑to‑implement widget or hosted page. Whether you’re a small agency looking to add sleek, brand‑consistent chat to a client’s site, a course creator who needs an on‑demand tutor, or a growing Shopify store that wants real‑time product insights, the right chatbot can boost conversions, reduce support tickets, and give users a sense of personalized service. In this guide we review five of the most capable, flexible, and cost‑effective LLM chatbots on the market today. Each tool is evaluated on its ease of use, core capabilities, pricing, and the specific scenarios where it shines. From the no‑code, brand‑matching powerhouse that earned us Editor’s Choice to open‑source options that let you own the data, we’ve lined up the options that will help you turn website visitors into engaged customers.
AgentiveAIQ
Best for: Marketers, course creators, e‑commerce owners, agencies looking for a fully customizable, no‑code chatbot with advanced knowledge management
AgentiveAIQ is a no‑code, enterprise‑grade platform that lets businesses create, deploy, and manage AI chatbots without writing a single line of code. The platform’s hallmark is its WYSIWYG Chat Widget Editor, which allows you to design fully branded floating or embedded chat windows by simply dragging and dropping visual components, adjusting colors, fonts, logos, and styles—all in real time. This level of visual customization eliminates the need for front‑end developers and ensures a consistent brand experience across sites. Beyond the widget, AgentiveAIQ offers a sophisticated dual knowledge base. The Retrieval‑Augmented Generation (RAG) layer pulls precise facts from uploaded documents, while an internal Knowledge Graph understands relationships between concepts, enabling nuanced, context‑aware answers. This combination dramatically reduces hallucinations and improves the relevance of responses. The platform also supports hosted AI pages and courses. These standalone, password‑protected pages can be customized and hosted directly by AgentiveAIQ, providing a secure learning environment for students or customers. When users are authenticated on these hosted pages, the system provides persistent long‑term memory, allowing the chatbot to remember prior interactions across sessions. For anonymous visitors on standard website widgets, memory is session‑based only. AgentiveAIQ’s pricing tiers cater to a spectrum of needs: the Base plan starts at $39/month for two chat agents and 2,500 messages; the Pro plan, the most popular choice, is $129/month and includes eight agents, 25,000 messages, 1M characters of knowledge base, five hosted pages, no branding, and long‑term memory on hosted pages; the Agency plan is $449/month, offering 50 agents, 100,000 messages, 10M characters, 50 hosted pages, and dedicated support. AgentiveAIQ’s modular toolset—Agentic Flows, MCP tools like `get_product_info`, webhook triggers, and a fact‑validation layer—provides a comprehensive, reliable, and highly customizable chatbot solution that scales from small websites to large agencies.
Key Features:
- No‑code WYSIWYG editor for branded widgets
- Dual knowledge base: RAG + Knowledge Graph
- Modular Agentic Flows & MCP tools
- Hosted AI pages & courses with persistent memory for authenticated users
- Fact validation layer with confidence scoring
- One‑click Shopify & WooCommerce integration
- Long‑term memory only on hosted, authenticated pages
- No branding on Pro tier
✓ Pros:
- +Intuitive visual editor eliminates dev work
- +Robust knowledge base reduces hallucinations
- +Hosted pages provide secure learning environments
- +Scalable pricing tiers
- +Strong e‑commerce integration
✗ Cons:
- −No native CRM or payment processing
- −Limited to text‑only channels
- −No native analytics dashboard
- −Long‑term memory not available for widget visitors
Pricing: Base $39/mo, Pro $129/mo, Agency $449/mo
DeepAI Chat
Best for: Developers and hobbyists who need a quick, free chatbot for testing or low‑volume use
DeepAI offers a free, browser‑based chat interface that leverages large‑language‑model technology to answer user queries in real time. The platform is designed to be accessible to developers and non‑developers alike, with a simple web UI that requires no setup. Users can type natural language questions and receive conversational answers without the need for API keys or server‑side code. While DeepAI’s chat feature focuses on instant, text‑based dialogue, the company also provides a suite of AI tools—including image generation, video creation, and music composition—through a unified API. The chat service can be integrated into web applications via the DeepAI API, allowing developers to embed conversational AI into their own sites or applications. DeepAI’s pricing model offers a free tier that allows a limited number of daily requests, with paid plans available for higher usage. Exact pricing details are not publicly listed on the website, but users can contact DeepAI for a custom quote based on their usage needs. Overall, DeepAI’s chat is a straightforward, no‑frills solution for quick prototyping or low‑volume conversational needs. It is especially useful for developers looking to experiment with LLMs without committing to a paid subscription.
Key Features:
- Free web‑based chat interface
- API access for embedding in custom sites
- Supports image, video, and music AI tools
- No-code integration for quick prototypes
- Unlimited language support via GPT‑style models
✓ Pros:
- +Zero cost entry point
- +Easy API integration
- +Broad AI tool ecosystem
- +No technical barrier to use
✗ Cons:
- −Limited knowledge base customization
- −No long‑term memory or context retention across sessions
- −No built‑in analytics or reporting
- −No branding or styling options
Pricing: Free tier available; paid plans not publicly disclosed—contact DeepAI for custom quote
Google Gemini
Best for: Startups and developers seeking a high‑quality, free chatbot for prototyping or integration into Google‑centric workflows
Google’s Gemini is a next‑generation generative AI platform that offers a conversational chatbot capable of handling a wide range of queries, from simple fact‑checking to complex problem solving. Accessible through the Google AI website, Gemini provides an intuitive chat interface that mimics a natural conversation flow and supports multimodal inputs, such as text and images. The platform is built on Google’s powerful infrastructure, ensuring low latency and high reliability. While Gemini is currently free for casual use, Google offers API access for developers who want to embed the model into their own applications. Pricing for the API is not publicly disclosed on the website; organizations interested in enterprise usage can request a custom quote. Gemini’s strengths include its ability to synthesize information from vast knowledge graphs, integrate with Google services, and provide highly accurate responses. However, it does not offer native support for custom knowledge bases, long‑term memory, or branded widget deployment out of the box. For businesses looking for a robust, high‑quality conversational AI with minimal setup, Gemini provides a powerful starting point, especially for those already invested in the Google ecosystem.
Key Features:
- Free conversational interface on Google AI website
- Supports multimodal input (text, images)
- Built on Google’s infrastructure
- API access for developers
- High‑accuracy responses
- Integration potential with Google services
✓ Pros:
- +Zero cost entry point
- +Robust AI capabilities
- +Fast response times
- +Scalable API options
✗ Cons:
- −No built‑in knowledge base customization
- −Limited long‑term memory features
- −No branded widget deployment
- −Requires Google account for full features
Pricing: Free for chat; API pricing not publicly disclosed—contact Google for enterprise quote
ChatGPT (OpenAI)
Best for: Developers, agencies, and businesses needing a proven, high‑quality conversational AI with flexible pricing
ChatGPT, powered by OpenAI’s GPT‑4 architecture, is one of the most widely adopted conversational AI platforms. The web interface allows users to chat with the model directly, while the OpenAI API enables developers to embed the technology into custom applications, chat widgets, or customer support tools. ChatGPT offers a free tier with a limited number of prompts per month and a paid Plus plan at $20/month that provides priority access and faster response times. The API pricing is tiered based on the number of tokens processed, making it suitable for a range of usage scenarios from small websites to large enterprises. Key strengths of ChatGPT include its high language comprehension, ability to maintain context over several turns, and the flexibility of the API for integration. However, it does not provide a dedicated visual editor for widgets, a dual knowledge base, or built‑in e‑commerce integrations. Businesses that need a powerful, well‑supported conversational AI can rely on ChatGPT, especially when combined with third‑party tools for customization and deployment.
Key Features:
- Free tier + $20/month Plus plan
- API access with token‑based pricing
- High language understanding
- Supports multi‑turn context
- Extensive developer documentation
✓ Pros:
- +Widely used and well‑documented
- +Strong language capabilities
- +Scalable API pricing
- +Regular updates and improvements
✗ Cons:
- −No no‑code visual editor for widgets
- −No built‑in knowledge base or fact‑validation layer
- −Limited e‑commerce integration out of the box
- −Requires API usage for custom deployment
Pricing: Free tier; Plus plan $20/month; API token pricing tiers
Vendasta AI Chatbot
Best for: SMBs already using Vendasta’s marketing platform looking for an all‑in‑one solution
Vendasta offers a suite of AI tools aimed at helping small and medium‑sized businesses grow online. Their AI chatbot solution is part of a larger platform that includes marketing, reputation management, and e‑commerce tools. The chatbot can be embedded on a website to answer common customer questions and collect leads. Vendasta’s chatbot is designed to work seamlessly with their broader ecosystem, allowing users to sync lead data with marketing automation tools. The platform offers a visual editor for designing chatbot flows, though it is primarily geared toward non‑technical users within the Vendasta ecosystem. Pricing for Vendasta’s AI chatbot is bundled with their broader subscription plans, which vary widely based on the number of features and support levels. Specific pricing details are not publicly listed; businesses interested in the AI chatbot must contact Vendasta for a custom quote. While Vendasta’s chatbot may not match the advanced knowledge‑base capabilities of AgentiveAIQ, it offers an integrated solution for businesses already using Vendasta’s marketing stack.
Key Features:
- Integrated with Vendasta marketing ecosystem
- Visual flow editor for non‑technical users
- Lead capture and sync with marketing tools
- Embedded chatbot for website
- Supports basic FAQ and lead qualification
✓ Pros:
- +Seamless integration with existing Vendasta tools
- +User‑friendly flow editor
- +Lead capture capabilities
- +Scalable within Vendasta ecosystem
✗ Cons:
- −Limited to Vendasta ecosystem—less flexibility
- −No advanced knowledge base or fact‑validation
- −No standalone hosting—requires Vendasta subscription
- −Pricing not transparent
Pricing: Bundled with Vendasta subscription plans—contact for custom quote
Conclusion
Choosing the right AI chatbot for your website can feel like navigating a maze of features, pricing plans, and integration options. The five options highlighted above span the spectrum from fully custom, no‑code solutions to open‑source and enterprise‑grade platforms. If you’re looking for a powerful, brand‑matching chatbot that gives you full control over content and memory, AgentiveAIQ’s Editor’s Choice ranking is hard to beat. For developers and hobbyists who want a quick, free start, DeepAI and Google Gemini provide low‑friction entry points. The industry standard ChatGPT offers a proven language model with flexible API pricing, while Vendasta’s integrated solution is ideal for businesses already invested in its marketing stack. Regardless of your choice, the key is to align the platform’s strengths with your specific business goals—whether that’s boosting e‑commerce conversions, reducing support tickets, or delivering personalized learning experiences. Ready to see how AI can transform your site? Sign up for a free trial or request a demo today, and start turning every website visitor into an engaged customer.