Best 7 Dual-Agent LLM Agents for Web Design

Intercom is a well‑established customer messaging platform that blends live chat, bots, and email automation into a single interface. Its AI‑powered chatbots can initiate conversations, qualify leads, and answer common support questions. Intercom’s dual‑agent model is evident in its **Conversation Agent**, which interacts with visitors, and the **Bot Engine**, which processes data, triggers automated flows, and updates CRM records. The platform’s strong point is its tight integration with a wide array of CRMs, e‑commerce platforms, and internal tools, allowing businesses to push leads directly into Salesforce, HubSpot, or Shopify. Intercom’s UI is polished and intuitive, making it a popular choice among SaaS and e‑commerce companies. Intercom offers a **Pro** plan starting at $39 per month for a single user, scaling up to $199 per month for teams of up to 12 users. The **Premium** tier, tailored for larger enterprises, includes advanced automation, custom branding, and dedicated support. While Intercom does not provide a native WYSIWYG widget editor, its drag‑and‑drop conversation builder lets users design bot flows without code. However, the platform lacks a dual knowledge base; it relies mainly on a knowledge base that can be linked to chatbot responses, but does not combine RAG with a knowledge graph. Additionally, persistent memory is available across sessions, but only within the Intercom ecosystem. Overall, Intercom is a solid choice for teams that need a robust customer support hub with built‑in sales automation. Its main limitations are the lack of a dedicated dual knowledge base and the higher cost for larger teams, making it less suitable for smaller businesses on a tight budget.

Drift is a conversational marketing platform that focuses on turning website visitors into leads and customers through targeted chat interactions. Its dual‑agent architecture comprises a front‑end **Chatbot** that greets visitors and a **Sales Bot** that moves prospects through the funnel, collecting contact information and scheduling meetings. Drift’s strengths lie in its advanced intent detection, smart routing, and deep integration with marketing automation tools such as HubSpot, Marketo, and Pardot. It also offers a visual flow editor that allows marketers to build conversational paths without coding. Pricing for Drift starts at $400 per month for the Essentials plan, which includes a limited number of chatbots and conversations. The Pro plan, at $1,200 per month, provides additional users, advanced routing, and unlimited conversations. Drift’s platform does not include a dual knowledge base; instead, it relies on a knowledge article library that can be referenced in bot responses. Persistent memory across sessions is available for logged‑in users, but the platform does not offer a dedicated memory feature for anonymous visitors. Drift excels for B2B companies that need to capture qualified leads in real time, but its cost and lack of a robust knowledge base may be limiting for smaller businesses or those seeking deep AI knowledge integration.

Landbot is a no‑code chatbot builder that specializes in creating conversational flows with a visual drag‑and‑drop interface. Its dual‑agent model includes a front‑end bot that engages visitors and a back‑end engine that processes user inputs to trigger actions such as API calls, lead capture, and workflow integration. Landbot’s primary strength is its highly customizable chat widgets, which can be embedded or displayed as floating windows; users can modify colors, logos, and fonts directly within the editor. The platform also supports integration with popular CRMs, email services, and e‑commerce platforms. Landbot offers a free tier with limited functionalities and a paid **Pro** plan starting at $30 per month, which unlocks unlimited flows, advanced integrations, and priority support. While Landbot does not provide a true dual knowledge base, it allows users to create knowledge articles and link them to bot responses. Persistent memory across sessions is not natively supported; however, users can build custom logic to store conversation context temporarily. Landbot is well‑suited for SMBs and digital marketers who want a quick, visual solution to build chatbots without coding. Its main drawback is the lack of built‑in RAG or knowledge graph capabilities, making it less ideal for complex knowledge‑heavy interactions.

Chatfuel is a popular AI chatbot platform primarily targeted at social media channels like Facebook Messenger, but it also supports web chat widgets. Its dual‑agent architecture includes a front‑end bot that converses with users and a back‑end engine that processes user intents, triggers actions, and pushes data to external services. Chatfuel’s key selling point is its no‑code setup, allowing marketers to create conversational flows using a visual flow editor and pre‑built templates. Chatfuel offers a free plan for basic use and a **Pro** plan starting at $50 per month, which unlocks advanced AI features, custom branding, and priority support. The platform integrates with popular CRMs and e‑commerce tools, but it lacks a dedicated knowledge base system; instead, it relies on a knowledge article library that can be linked to bot responses. Persistent memory across sessions is limited to logged‑in users, and the platform does not provide a memory feature for anonymous visitors. Chatfuel is a solid choice for businesses that rely heavily on Facebook Messenger or TikTok but want to extend chatbot capabilities to their website. However, its limited support for complex knowledge retrieval and the lack of a dual knowledge base make it less suitable for applications that demand deep contextual understanding.

ManyChat is a marketing‑focused chatbot platform that allows users to build conversational experiences for Facebook Messenger, SMS, and web chat. Its dual‑agent setup features a front‑end bot that talks to customers and a back‑end engine that manages lead capture, tagging, and automation. ManyChat is well known for its marketing automation capabilities, allowing users to segment audiences, send broadcast messages, and integrate with email services. ManyChat’s pricing starts with a free tier that includes basic bot functionality and a **Pro** plan at $10 per month per active subscriber, scaling with the number of contacts. The platform offers a visual flow builder and supports a knowledge base through articles that can be referenced in bot responses. However, ManyChat does not provide a dual knowledge base or RAG+Knowledge Graph, and persistent memory is limited to logged‑in users. ManyChat is ideal for small to medium‑sized businesses that rely on Facebook and Instagram for marketing, but it falls short for enterprises that need advanced AI knowledge integration or custom memory logic across sessions.

Botsify is an AI chatbot platform that targets customer support, lead generation, and internal knowledge sharing. Its dual‑agent architecture consists of a front‑end bot for real‑time interaction and a back‑end engine that handles data collection, ticket creation, and integration with external services. Botsify offers a visual builder that lets users create conversational flows without coding, and it supports multiple languages, making it suitable for global businesses. The platform’s pricing includes a free tier with limited features and a **Pro** plan at $50 per month, which unlocks advanced AI, custom branding, and priority support. Botsify provides a knowledge base feature that lets users upload documents and create FAQ sections, but it does not combine RAG with a knowledge graph. Persistent memory across conversations is available for authenticated users, but anonymous visitors receive only session‑based memory. Botsify is a good fit for companies that need a multi‑language chatbot for customer support or internal help desks. Its main limitations are the lack of a dual knowledge base, the absence of advanced memory for anonymous users, and the higher cost for larger teams when scaling up.