​​Big Sur AI and Chatbase are both AI chatbot platforms, but they have distinct strengths and ideal use cases.

 if your priority is a conversion-focused AI chatbot with top-notch response quality and quick deployment.

 Businesses of all kinds (SaaS, services, e-commerce, etc.) seeking to boost engagement, capture leads and drive sales conversions.

 All business sizes, with larger feature set for e-commerce merchants (especially ones on Shopify) that want a tailored AI agent.

 if you need a general-purpose chatbot for customer support or knowledge base queries, with many integrations.

 Businesses of all kinds (SaaS, services, etc.) that need an easy-to-set-up FAQ or support bot.

 Small to mid-sized companies looking for an affordable no-code chatbot solution.

Below, we go in details and compare them on many fronts:

Where does each platform shine (and fall short)?

 How well do they connect with other tools?

 The quality of responses and user experience.

 What data does each provide to improve your business?

Which is better, from Chatbase’s flat plans with limits to Big Sur’s more generous approach?

 Real customer feedback, forum insights, and testimonials for both platforms.

Big Sur AI vs Chatbase: Key Differences at a Glance

Let’s break down some key points side-by-side:

Features: Big Sur AI Excels at Business Impact; Chatbase Handles Basic Q&A

Big Sur AI is purpose-built for sales conversions - whether your business is trying to win new leads or assist existing customers, whereas Chatbase is a generalist for website Q&A.

Big Sur’s feature set revolves around guiding visitors to your products and services. It's like you've extended your own team into an always-on, expert salesperson there to help potential and existing customers discover value. 

Big Sur AI’s Sales Agent lifts conversion rates by 4x

Big Sur’s original flagship product, the AI Sales Agent, provides real-time product advice and answers complex product questions to boost buying confidence. It is proven to lift conversion rates 4x for e-commerce brands.

Recently, Big Sur released its AI Web Agent, which brings the same amazing conversion-focused experience to any type of business—from law firms to agencies to SaaS companies and more. The AI Web Agent engages with prospective and current customers, putting crucial answers at their fingertips 24/7. The AI Web Agent is proven to make your website more effective.

Big Sur AI offers a wider range of capabilities 

In addition to driving more sales for your business, Big Sur’s platform has a larger feature set (e.g. an 

 for auto-generating landing pages) aimed at lifting engagement and overall site traffic. This is totally unique amongst available chatbots - there is no other solution on the market that allows you to increase performance of your website with a chatbot AND drive more traffic to your revenue with an AI content marketing solution.

Chatbase’s chatbot covers the basic use cases (especially for support)

Chatbase, on the other hand, offers a broad, entry-level chatbot capability that is suitable for answering support FAQs, retrieving info from documents, and handling generic queries.

You train a Chatbase bot on your content (website, files, etc.), and it will answer questions based on that knowledge. It’s not 

 tailored to sales but effective for support across many industries.

It essentially covers what most “chat with our website” bots do – helpful for support or basic sales questions in any sector. Chatbot does not include features above and beyond the basic chatbot.

Big Sur AI wins with best-in-class response quality

Thanks to proprietary real-time AI and machine learning models that pull from multiple data sources, Big Sur AI is able to go beyond the surface level to engage deeply - from answering questions to providing highly personalized recommendations. The agent only uses your company’s materials (like SaaS documentation, content inventory, product details) and has built-in guardrails against hallucination. Answer quality is world-class and outperformed every other agent we’ve tested.

This can lead to highly accurate, context-rich answers for visitors.

For example, in an e-commerce context, Big Sur’s AI will not only tell a customer which product fits their needs, but also 

cross-reference website content, past customer engagements, and related product information on the fly to give a well-rounded answer.

Chatbase’s responses are strong for general queries – it also uses retrieval augmented generation (RAG) techniques behind the scenes to ground answers in your data – but its focus is answering questions, not selling. So while Chatbase will accurately pull info from, say, your knowledge base, it may not proactively recommend products or ask follow-up questions like Big Sur’s sales-trained agent does.

In short → Big Sur’s AI is trained to drive conversions (and resolve inquiries), whereas Chatbase’s AI is primarily trained to resolve an inquiry.

User Experience & UX Design: Big Sur Offers a Dynamic Experience; Chatbase a Standard Chat Widget

Big Sur AI provides a more immersive UX for visitors on your site

Whereas Chatbase’s interface is a typical chat widget, Big Sur’s chat can be embedded flexibly and even injects dynamic prompts on your webpages – for instance, it can show 

 on product or service landing pages or product recommendations while customers browse e-comm stores ⤵️

This is part of Big Sur’s strategy to engage users contextually.

For example, the AI might nudge a visitor with “Need help finding integration documentation?” on a web page where connecting to another service is the most likely next step in the product’s journey.

The chatbot window itself is adapted to your site and feels like a natural part of the journey. Big Sur’s AI agent UI is completely customizable to match your site’s look and feel, including colors, fonts, placement, and even incorporating your brand voice guidelines into the agent’s interactions.

One of Big Sur’s design partners noted that it 

“provides an assisted browsing experience… instrumental in converting visitors into buyers”

– indicating the UX is tuned to keep visitors engaged, not annoyed.

Chatbase’s widget is familiar and straightforward – a chat bubble that opens a conversation. To match your branding, you can customize the basic appearance (colors, chat icon, welcome message).

It works well and is what users expect from a support chatbot. However, it doesn’t (by default) have the fancier on-page personalization that Big Sur AI offers.

“Chatbase, by contrast, appears as a basic chatbot similar to many others.”

If your goal is a straightforward Q&A interface, Chatbase’s UI is perfectly fine. But if you want the chatbot to feel like an interactive user guide baked into the site experience, Big Sur has an edge with its more flexible embedding and proactive prompts.

Another UX factor is multi-channel support. Chatbase allows you to deploy the chatbot on unlimited websites (even on the free plan) and also integrate with channels like Slack, WhatsApp, or Messenger for chat (via its integrations). So, your Chatbase agent isn’t limited to your website – you could use it internally on Slack or on social messaging platforms, extending the user experience to those channels.

Big Sur AI, in contrast, is more limited (for now). It doesn’t currently offer a Slack bot or Facebook Messenger bot; its UX is centered on helping the visitors on your website today.

Integrations & Workflows: Chatbase Has the Upper Hand in Third-Party Integrations

Chatbase supports a broad range of integrations out of the box, whereas Big Sur AI integrates deeply with any website, but has fewer third-party hooks (for now).

Chatbase provides API access on all paid plans and offers native integrations or extensions for popular services.

According to its documentation, Chatbase can connect with:

For example, you could have the Chatbase bot automatically create a ticket in Zendesk via Zapier when a customer indicates dissatisfaction, or let users query the bot from a WhatsApp chat. This makes Chatbase a flexible choice if you need your chatbot to plug into CRM systems, marketing tools, or multi-channel support workflows.

Big Sur AI’s integrations aren’t as wide, but the AI chatbot agent can go from deep website crawl to live AI agent on your site in minutes, which isn’t the case for Chatbase. It’s the highest speed-to-quality AI chatbot agent on the market.

Out of the box, Big Sur can be integrated onto any website, including:

For e-commerce businesses, Big Sur AI has native integrations like Shopify, Magento, BigCommerce, WooCommerce, and Salesforce Commerce Cloud that allow the AI agent to pull product catalogs, orders, and customer data seamlessly from your store. It also has a Klaviyo integration that sends events (like chat topics) to your Klaviyo lists for marketing automation.

Workflow automation: Chatbase leads, but Big Sur is Quickly Catching Up

Chatbase includes an “AI Actions” feature (5 to 15 actions depending on plan) which lets the chatbot perform tasks like booking a meeting, sending a message to a Slack channel, or other automated steps. This is quite powerful if you want your chatbot to 

Big Sur AI’s primary agent is more focused on the conversational side, though it does cover some actions relevant to e-commerce (e.g., adding items to cart or guiding through a quiz). The platform is catching up, though, with a ton of AI-powered actions being deployed weekly for non-e-commerce workflows👇

Neither platform currently has a built-in live chat handoff (where a human agent takes over the conversation in the same chat window). Chatbase users have pointed out this gap: while the bot is great at automated answers, if a customer needs a human, there isn’t a native transfer feature (you’d have to send an email or use another chat system). As a pre-sale tool, Big Sur AI is likewise designed to operate autonomously; complex questions can be routed to a support system, but it’s not a live agent chat solution like Intercom.

Best AI Chatbots for Websites in 2025 (Top 6 Compared)

Chatbase vs Big Sur AI: Which AI Chatbot Should You Pick in 2025?

AI chatbots have gone from gimmick to game-changer in 2025. Instead of clunky scripts and generic responses, today’s top tools deliver human-like support, convert more visitors, and provide real-time answers — all without the wait or overhead of live agents.

Whether you're running an e-commerce store, SaaS platform, or content site, modern AI chatbots can make your website feel like a personalized, always-on assistant.

In this guide, we compare the 6 best AI chatbots for websites in 2025 — covering features, pricing, pros, and best use cases — so you can choose the right solution for your goals.

Why You Need an AI Chatbot on Your Website in 2025

Website visitors today don’t want to dig through menus or wait for a live chat agent. They’ve gotten used to something faster, more direct — and more helpful.

, users are becoming conditioned to getting 

 to complex questions. They expect websites to work the same way: no searching, no forms, no hold music. Just clear, useful information delivered on demand.

That shift in user behavior has created a huge opportunity for brands. The right AI chatbot can:

 by helping visitors find the right product or service faster

 in real time, using your own content and data

 and guide users through your funnel 24/7

And unlike traditional live chat or scripted bots, 

modern AI chatbots are powered by large language models

 that can understand nuance, follow context, and deliver natural, helpful replies — even when the question is messy or unstructured.

If you want your website to meet modern expectations and compete with brands already using AI to boost engagement, it’s time to get serious about your chatbot strategy.

Before AI chatbots, you had two choices for helping users get the right information on your website:

You’ve definitely seen these pop up when you visit a website. They ask you to click through pre-made questions and answers that are often incorrect, lack context, and are just trying to collect information from you, not solve your problem. Most sites try to disguise these chatbot pop-ups as human-written messages or AI, but they’re neither.

Visitor satisfaction rates are low with pre-made chatbot interactions, and conversions to revenue-driving actions are also low.

The second option, which you get to eventually through pre-made questions, is to get connected with a human support or sales agent.

Delays are too long for visitors, who want to ask questions right away but have to wait for a human to connect, which most often takes some time.

It’s too expensive for corporations to have enough human agents to be available to answer visitors’ questions in real-time.

Because of ChatGPT and its competitors (Claude, Grok, Gemini, etc.), there will be a new option in 2025: AI-native chatbots.

And thanks to modern software, your website can also offer a ChatGPT-like experience by integrating with one of the vendors below.

These aren’t just upgraded live chats — they’re intelligent agents built from the ground up to understand your content, personalize responses, and guide visitors toward action in real time. No scripts, no delays, no handoffs — just instant, high-quality help that feels natural, not robotic.

Here are the six best AI chatbots for websites in 2025 (more details below) ⤵️

 Best for high-quality AI agents across any industry, plus the only option to offer AI content marketing tools

Best for AI agents with lots of integrations

Best for off-the-shelf AI customer support

Best for combining AI with automation for customer support

Best for customer support for large-scale organizations

 Best for advanced users wanting a visual workflow builder

They all have different approaches and styles. For example, Big Sur AI is built to work out-of-the-box on your site, Intercom has a more traditional chatbot approach, and Botpress is a “build it yourself” option.

Below, we compare them in detail (capabilities, strengths, weaknesses, price, best use cases) so that you can pick the best one for your website.

#1. Big Sur AI (Best for high-quality AI agents)

 AI-powered website assistant focused on making your business more successful - by helping customers, increasing discovery and lead capture, and driving sales

 chatbot assistant, personalization engine, and content marketer for websites.

Big Sur AI has an AI Website Agent offering for companies in any industry, as well as an AI Sales Agent specifically for e-commerce.

Designed as AI-native from the ground up, our agents deliver deep personalization by syncing your website’s unique content and proprietary data in real time. They interact naturally with visitors anywhere on your site, providing relevant, helpful answers that guide users toward their goals — whether that’s making a decision, finding information, or completing an action.

Our best-in-class technology means our AI agents always have the right answer and maintain your brand voice in every interaction.

Why pick Big Sur AI over other AI chatbot solutions?

Although known for its AI shopping assistant for e-commerce brands, Big Sur AI just released its AI-native website assistant for all types of websites.

Here’s how it outshines competitors and why it’s ranked #1 👇

Instant answer quality without work on your side: 

Automatically syncs your website’s back-end data (products, services, analytics, customers, traffic patterns, documentation, etc.) to tailor the AI agent to your content and offerings.

A live AI agent can be spun up in minutes, compared to days or weeks for alternatives. 

The experience for visitors goes beyond a simple chat interface. Big Sur AI’s agent can be appended anywhere on your webpages, and visitors can interact with answers in multiple intuitive ways.

Affordable pricing tiers designed to get you started quickly. You get unlimited user conversations, so you don’t need to worry about accidentally going over budget or cutting off your most-engaged visitors.

Not only does Big Sur AI offer AI agents for your website, but we also offer tools to drive more traffic with our AI Content Marketer. Automatically generate and optimize your landing pages for both SEO rankings and sales conversions.

Key Features and Capabilities of Big Sur AI

 Automatically crawl every page on your website. Select which pages are to be included and excluded from the AI chatbot’s training.

 Tailor your agent to fit your website experience and brand.

Big Sur AI has the unique ability to be integrated both as a regular chatbot on the X or Y axis of any web page, but also in custom website components, like under product descriptions or next to buttons ⤵️

 You can instruct the AI agent to do specific tasks or fire automated workflows when certain criteria are met when visitors engage. You can fire actions like take a visitor’s information, trigger automated subscriptions, update records, etc.

 Ask Big Sur’s AI agent to automatically create landing pages based on your documentation data or frequent conversation topics with visitors.

Here’s a real landing page examples created by the AI agent (e-commerce example) ⤵️

 Gives you deep analytics on what customers are asking, what’s converting, and where drop-offs happen—so you can optimize your site for conversions.

Pros: What do brands like most about Big Sur (according to reviews)?

 In short, Big Sur AI combines AI chatbot, website personalization & conversion optimizer, landing page builder, and visitor support into one platform.

 Type in your website’s URL into Big Sur AI’s hub (

), and you’re live in minutes—no dev team needed.

 Big Sur was built from the ground up to leverage AI. All features have native AI capabilities that make legacy providers obsolete (general product searches, non-AI product recommendations, generic chatbots, etc.).

Cons: What do people dislike about Big Sur AI?

❌ New platform, not as widely adopted legacy Chatbot providers like Intercom.

Big Sur AI’s pricing gives you more volume than Chatbase, and doesn’t have as many volume paywalls that force you to upgrade (more on this below).

, supports up to 1,000 monthly site visitors, unlimited user conversations, 100 web pages, 10 files (8MB each), and 5 team members.

, supports up to 10,000 monthly site visitors, unlimited user conversations, 15,000 web pages, 50 files (8MB each), 50 team members, and one domain. Additional visitors at $6 per 1,000.

, unlimited site visitors, conversations, pages, files, team members, multi-domain support, and a dedicated account manager with Slack channel.

#2. Chatbase (Best for chatbot-triggered actions)

Octane’s pricing is pretty straightforward but can sneak up on you as you scale your e-commerce business.

This guide aims to clarify what’s included with each of Octane AI’s plans, how the cost will scale over time, potential surprises in the future, and more.

If you find Octane’s pricing too limiting, especially at high volumes, or need more than quizzes to help your brand grow, we’ll suggest modern 

Octane AI pricing increases with quiz engagement volume — not completions. You pay whether users finish the quiz or not.

Premium features (like removing branding, advanced logic, and Klaviyo blocks) are locked behind higher-tier plans.

Entry-level plan starts at $50/month for 200 engagements; high-volume plans can cost $5,000+/month.

You must provide credit card info to start the 14-day free trial (available only after requesting a demo and installing via Shopify).

The platform can be difficult for non-technical teams to set up, and implementation help often costs extra.

Users report frustration with hitting engagement caps quickly, making low-tier plans feel limited.

 offer performance-based pricing, faster setup, and more powerful AI experiences (like adaptive quizzes and AI sales agents).

Octane’s pricing strategy is based on two factors:

 on your site. For example, 200 quiz interactions will cost you $50/mo, and 200,000 interactions, $5,000/mo.

. For example, with the business plan, you can remove Octane’s logo from your quizzes or send Klaviyo emails to your responders.

 $50/month, including 200 monthly engagements, unlimited quizzes, pop-ups, and email/SMS opt-in collection with basic integrations.

 It starts at $200/month for 1,500 engagements and includes advanced quiz logic, shareable results pages, custom CSS, A/B testing, and dynamic email templates.

 It starts at $500/month for 4,500 engagements, including all Plus features, a dedicated account manager, managed services, and custom enterprise solutions.

: Octane counts engagements, not completions. This means that each time someone interacts with a quiz, it counts as an engagement, whether they convert or not. Therefore, you can max out your engagements by having 200 people answer one question and leave your site, without buying anything.

Octane AI provides a 14-day free trial for new users integrating the platform with their Shopify store. To activate the trial, you need to:

Request a demo with Octane’s sales team by providing your information (view image below).

Install Octane AI from the Shopify App Store. 

Provide valid credit card information through Stripe. 

The trial period begins immediately after accepting a plan in Stripe. During the trial, you have full access to the selected plan's features, allowing you to evaluate the platform's suitability for your business needs. 

After the 14-day trial, billing will commence automatically based on the chosen plan.

Starting price → $50 USD per month for 200 monthly engagements.

Given that you do not need or use premium features (removing watermarks, email automation, etc.), Octane will cost more as you get more quix engagements. Example: $200 per month for 1,500 engagements. ⤵️

The plan is built for smaller businesses or early-stage stores that want to begin collecting zero-party data and personalizing customer experiences.

 Build interactive product recommendation quizzes tailored to your catalog and customer needs.

 Deploy email and SMS opt-in pop-ups that integrate directly with your ESP and SMS platforms.

 Connect with tools like Klaviyo, Recharge, and Zapier to sync data and automate messaging workflows.

 Capture contact information during quizzes or through standalone pop-ups to grow your marketing lists.

 Gather valuable customer insights like preferences, pain points, and goals directly through quiz responses.

 Show personalized product results based on quiz logic, improving conversion rates and product discovery.

 Customize quizzes and pop-ups with your brand’s colors and fonts for consistency with your site.

✖️ Limited to 200 engagements per month 

✖️ No advanced logic or branching in quizzes 

✖️ No A/B testing or custom CSS options 

Starting at $200 USD per month for 1,500 monthly engagements.

Yes — pricing scales based on monthly quiz engagements. If you don’t need premium add-ons like Smart Copy or the Insights Analyst tool, you’ll still pay more as engagement volume grows. Example: $200 per month for 1,500 engagements. ⤵️

This plan is geared toward growing eCommerce brands looking to scale their personalization efforts with more flexibility and smarter targeting. 

 Ask deeper, more personalized questions and guide users through complex paths based on their answers. 

 Fully editable and brandable landing pages that display tailored product recommendations based on quiz responses. 

 Modify the look and feel of quizzes and pop-ups with custom styling for a pixel-perfect match to your brand. 

 Show opt-in forms and quizzes to users based on behavior, location, page visits, and more. 

 Test different quiz versions, pop-up styles, and targeting strategies to find what performs best. 

 Automatically inject quiz answers and product recommendations into Klaviyo emails for hyper-personalized follow-ups. 

 Designed to handle higher site traffic and interaction volume without disruption.

✖️ Limited to number of engagements per pricing tier (e.g., 1,500/month for $200) 

✖️ AI tools like Smart Copy cost extra 

Starting at $500 USD per month for 4,500 monthly engagements.

Pricing scales significantly based on engagement volume and any added custom solutions.

Octane’s public pricing only details costs up to 200,000 monthly engagements. Companies exceeding this limit will have to discuss their projected engagement volumes with their Octane AI account manager to get a custom price.

The Enterprise plan is designed for high-growth brands and larger teams that need premium support, customization, and the flexibility to run large-scale zero-party data strategies. It includes:

 Including advanced logic branching, custom CSS, pop-up targeting, A/B testing, and Klaviyo dynamic blocks.

 Get hands-on guidance, onboarding support, and strategy recommendations from a named Octane AI expert.

 Tailored quiz experiences, advanced integrations, and unique workflows developed for your store’s specific needs.

 Access to Octane’s team to help with quiz creation, optimization, and ongoing maintenance.

 Handle significantly larger audiences and higher traffic spikes with scalable infrastructure.

 Faster response times and elevated support from the Octane AI team when technical or strategic questions arise. 

 Regular check-ins to analyze performance and uncover new growth opportunities.

✖️ Engagement-based pricing still applies (4,500/month included; additional usage may cost more)

✖️ AI tools like Smart Copy and Insights Analyst are not included by default

✖️ Custom solutions may come with added setup costs

✖️ High-volume pricing is opaque (unknown above 200,000 engagements)

Reaching Octane’s plan limits automatically upgrades your plan and unlocks new capabilities.

For example, as you reach past 1,500 engagements per month, you’ll unlock the ability to set conditional branching quiz logic, sync quiz engagement data to Google Analytics, and all other features under the “Plus” plan.

Not forcing double price bumps for other plans’ features is a plus, but it comes at a downside for brands with smaller volumes 👇

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Chatbase vs Big Sur AI: Which AI Chatbot Should You Pick in 2025?

Best AI Chatbots for Websites in 2025 (Top 6 Compared)