Agentic AI: HubSpot Customer Agents & Custom GPTs

Using Agentic AI: HubSpot Customer Agents & Custom GPTs in Action

By Brittany NaderMay 8 /2025

What Is Agentic AI and Why Does it Matter?

If you’ve ever wished you could clone yourself just to keep up with all the emails, customer questions and content creation, we have good news. Agentic AI is here to make your life a whole lot easier, automating complex tasks and tackling customer service inquiries when human intervention isn't always necessary.

Agentic AI refers to autonomous agents, artificial intelligence systems capable of decision-making and task execution without constant human oversight. Built on large language models (LLMs) and advanced reasoning algorithms, these agentic AI systems are designed to handle multi-step tasks, adapt to new inputs in real time and make decisions in line with predefined goals.

That means they can do things like:

  • Carry on complex, contextual conversations with customers
  • Triage support tickets and route them to the right team
  • Draft follow-up emails based on customer history
  • Search your knowledge base and suggest the best answers

In marketing, customer service and sales, that means you’re looking at tools that are:

  • Always on (AI agents operate 24/7)
  • Incredibly fast at answering questions and qualifying leads
  • Personalized, thanks to behavior and intent tracking

Understanding Agentic AI Systems

Autonomous AI agents simulate human decision-making by using defined roles and dynamic input analysis. They work toward specific goals—whether that’s routing a support ticket or qualifying a sales lead—by analyzing customer behavior, preferences and conversation data in real-time to execute tasks effectively.

Think of an autonomous AI agent as a really smart digital coworker, adept at problem-solving and efficient task execution. You give it a role, a little training and access to your systems and it takes it from there. Some real-world examples include:

  • AI chatbots don’t just spit out canned replies, but reference your knowledge base and make smart decisions on when to escalate
  • Lead qualifiers that can ask the right questions on your site, assign a lead score and pop that contact into the right workflow
  • AI-driven email assistants that suggest the perfect subject line, or flag a high-value customer about to churn

And while they’re smart, they’re also manageable—you set the boundaries and rules and you can update them anytime.

You’ve likely seen these agents in action: a chatbot that helps resolve tier-1 support issues or an automated assistant that directs your question to the right department. These tools are no longer novelties—they’re becoming essential to modern business operations, especially as they analyze vast amounts of data.

Key Benefits of Agentic AI Models

In many companies, teams are overextended. With lean teams comes the inevitable outcome where individuals wear many hats or shift priorities at a moment's notice. Marketers, for instance, are juggling the ongoing duties of writing content, running campaigns, managing CRMs, analyzing data and so forth.

Agentic AI lightens that load in a way that showcases its capabilities, saving time while preserving and even at times improving the customer experience. Here’s how:

Major Time Savings: No more answering the same “Do you have a manual for XYZ machine?” type questions. AI handles the FAQs while your team focuses on complex, high-touch work.

Around-the-Clock Support: Your customers don’t care if it’s 3 AM. Agentic AI doesn’t either. These tools respond instantly, guide users to answers and escalate as needed—all without clocking out.

Better Personalization: Because these tools use behavioral data, they can tailor responses in a way that actually feels human. Think “Hey, saw you were checking out our packaging solutions—need help finding specs?” instead of “How can I assist you today?”

Scalable Growth: Whether you’ve got 10 site visitors a day or 10,000, AI agents scale without needing extra hires or burnout, thanks to their ability to process real-time data.

Data You Can Use: Most Agentic AI tools include performance dashboards that show you exactly what’s working (and where the AI needs help). You’re not flying blind.

In real-world applications, companies report faster ticket resolution, higher conversion rates, and better customer sentiment when agentic AI is deployed strategically.

HubSpot Customer Agents Powered by Artificial Intelligence

HubSpot’s Customer Agents harness agentic AI to support marketing, sales and service teams through smart automation and real-time customer interactions. These AI-powered tools do more than respond—they learn, adapt through continuous learning and optimize over time.

HubSpot’s Customer Agents are built right into your CRM. That means they’re not guessing when they talk to your customers—they’re referencing actual contact records, behavioral data and lifecycle stages.

Here’s what they can do:

  • Chat with website visitors and offer context-aware support or lead generation
  • Follow up with contacts after form fills, downloads, or demos
  • Route tickets or conversations to the right person or team
  • Generate email replies based on customer history

Because they’re native to HubSpot, setup is pretty close to effortless—and they can tap into your workflows, lists and contact properties out of the box.

Automating Customer Interactions With HubSpot AI Agents

With HubSpot and Breeze AI, businesses can:

  • Handle FAQs with context-aware chatbots
  • Qualify leads based on conversation content
  • Route requests automatically based on keywords or intent

Within the platform, Customer Agents are easy to configure. You can customize tone, behavior and response logic, and assign them to specific chatflows that appear on targeted pages. Setup includes triggers, welcome messages and fallback handling—all without coding.

Increasing Customer Satisfaction Through AI-driven Experiences

HubSpot AI personalizes the entire customer journey. It uses behavioral data to deliver relevant messages and recommendations, which can lead to:

  • Higher Net Promoter Scores (NPS)
  • Increased conversions from chats and emails
  • Fewer escalations due to resolved first-touch inquiries

Exploring Custom GPTs and Their Impact

We all know about ChatGPT at this point. But what you might not know is that you can create your own GPT—customized to your brand, your tone and your goals.

These custom GPTs can be trained with your product info, brand guidelines, service documentation, FAQs, customer personas or past work examples. Then you plug them into your workflows, customer service chats, email assistants and more.

Custom GPTs are fine-tuned versions of generative AI models trained specifically on a company’s knowledge base, tone and messaging, utilizing natural language processing. Unlike generic chatbots, they provide nuanced, brand-aligned responses to user queries.

How Custom GPTs Drive SEO and Referral Traffic

GPTs can:

  • Embed internal links and CTAs directly into responses
  • Act as conversational search engines, improving session length and lowering bounce rate
  • Guide visitors toward conversion goals like blog signups or product demos

Example prompt: "What’s the best product for high-speed fabric welding?"
Response includes a product link, helpful resources and a “Learn More” CTA.

Leveraging Custom GPTs for Enhanced Customer Engagement

With intent-based logic, Custom GPTs can:

  • Lead users through sales funnels
  • Offer targeted product education
  • Suggest support resources or escalate issues

Tone, clarity and confidence remain consistent, building trust and boosting satisfaction with every interaction.

Real-World Application: Implementing a Custom GPT 

At Kuno, we helped Miller Weldmaster implement a Customer Agent powered by HubSpot’s Breeze AI. A global manufacturer of industrial fabric welding machines, their team wanted to better support their customers while reducing the manual workload on their team.

Working with Kuno, they built out:

A Custom GPT Trained on Product Knowledge

We fed in product guides, manuals, videos, FAQs, and support documentation. The result? A bot that can answer even the technical stuff (with accuracy!) in a conversational way.

A Support-Focused Chatbot

We integrated the GPT into a 24/7 support chatbot on their site. It helps customers troubleshoot, access manuals and even guides them through basic maintenance.

Automated Ticket Routing

If the AI can’t solve the issue? It creates a support ticket and routes it to the right human—with all the context included.

Smarter Lead Qualification

On the sales side, the chatbot now asks pre-qualifying questions and adds that info to the contact record. Reps don’t waste time with dead-end leads.

As a bonus, the team at Miller Weldmaster didn’t have to overhaul anything. The tools plugged right into their existing HubSpot setup.

Integrating Agentic AI

We learned a lot from working with Miller Weldmaster, and we’re happy to pass some of that intel along:

Train the AI with the right stuff: Your custom GPT is only as smart as the info you give it. Make sure you’re feeding it up-to-date, useful content. Think videos, manuals, blog posts, sales decks, emails—whatever you’ve got.

Make your chatbot approachable: Nobody wants to talk to a robot that sounds like a robot. We helped Miller Weldmaster create a friendly tone and guide users through simple interactions. Little things like “Need help troubleshooting?” go a long way.

Set boundaries and fallback plans: Sometimes a human needs to step in. Make sure your AI knows when to escalate, and make it easy for the customer to reach someone if needed.

Setting Up Effective Queries and Prompts

Additionally, prompts like “Need more info?” or “Read our tech guide” direct users toward valuable site content. By embedding SEO-friendly keywords and internal links, Custom GPTs also support organic search visibility.

Tracking Success With Custom GPTs

Miller Weldmaster uses built-in HubSpot reports to monitor:

  • Resolved chats
  • Human handoffs
  • Unanswered questions
  • Visitor feedback
  • Topic-level knowledge gaps

These insights allow for ongoing optimization and improved customer outcomes.

So… How Do You Get Started With Agentic AI Work?

Honestly? You don’t have to go all-in at once. Start small. Here’s how:

  1. Choose a goal. Want to reduce support tickets? Qualify more leads? Pick a priority.
  2. Create a custom GPT. Feed it your resources. Train it like you would a new team member.
  3. Set it up in HubSpot. Plug it into your chatbot, email sequences or internal team tools.
  4. Test. Tweak. Scale. Watch how it performs. Make adjustments. Grow its role as you build trust.

If you’re already using HubSpot, you’ve got a major head start. And if you’re working with a partner like Kuno? Even better. We can help you build, train and optimize every step of the way.

How Kuno Creative Empowers Businesses Using Agentic AI and GPTs

Kuno Creative brings deep strategic and technical expertise to AI implementations. Whether you’re just exploring AI or ready to roll out a full-scale integration, we provide end-to-end support—from planning and training data prep to optimization and reporting.

Kuno Creative’s Approach to Custom GPT Development

  • Discovery sessions to align with voice, audience and goals
  • Iterative testing to refine tone, increase accuracy and boost conversions
  • Collaboration with your team to build prompt libraries and keyword strategies

Enhancing Digital Performance With Agentic AI

AI systems can be powerful tools when trained and used properly. While no AI solutions will replace the complexity or depth of the human mind and spirit, AI agents learn how to help us with specific tasks that elicit measurable results, such as:

  • Increased web traffic and session time
  • Higher-quality leads with lower acquisition costs
  • Streamlined sales processes and faster support resolution

See What Artificial Intelligence Can Do for You

Whether it’s a custom GPT that knows your brand better than your intern, or a Customer Agent that handles your customer queries while you sleep—this tech is ready right now. With the right mix of human oversight and intervention, we're experts at enabling AI agents to operate independently to help with repetitive tasks.

Let’s build something smart together for your business. Contact us today.

AI Playbook

Frequently Asked Questions About Agentic AI and Custom GPTs

What Exactly Is Agentic AI?

Agentic AI refers to a type of AI system that can operate independently—meaning it can make decisions, gather information and complete complex tasks without someone steering the wheel. These AI agents aren’t just waiting for instructions—they’re acting with intention. Whether it’s answers support tickets or helps qualify leads, Agentic AI operates with autonomy that feels almost human.

How Does Agentic AI Benefit Customer Service?

Agentic AI takes care of the repetitive stuff so your human team can focus on higher-level conversations. It offers instant responses, reduces wait times and can handle complex tasks like triaging requests or providing product-specific guidance. AI agents gather data from previous interactions and use it to create a more personalized, efficient experience for your customers.

Can Agentic AI Integrate Easily with HubSpot?

Yes! HubSpot is ahead of the curve here. Their AI agents and customer service tools are built right into the CRM, which means setup is straightforward and doesn’t require heavy customization. You can connect your workflows, tickets, contact data, and even knowledge base with just a few clicks.

What Are Custom GPTs and How Do They Work?

Custom GPTs are specialized Generative AI models trained on your business’s specific data. Instead of a generic AI that knows a little about everything, these models know a lot about you. You can load them with brand guidelines, product docs, internal processes—even tone of voice. From there, they can answer questions, draft emails or generate content that actually sounds like your company wrote it. After all, in a sense, you did.

How Can Custom GPTs Boost My Website’s SEO?

Think of a Custom GPT as a conversational search engine built just for your site. Instead of users bouncing when they don’t find what they need, the GPT keeps them engaged—answering questions, guiding them to pages and recommending content. This reduces bounce rate, increases time on site and tends to encourage more internal clicks, all of which signal to Google your content’s legitimacy, along with your website and brand.

Are There Risks Involved in Using Generative AI or Large Language Models?

There are some, yes—but they’re manageable. Risks include occasional inaccuracies, hallucinations (when the AI confidently makes something up), or outdated information. That’s why it’s important to regularly monitor outputs and keep your GPT trained with up-to-date data. With Agentic AI systems, you can also program in confidence thresholds and escalation points to ensure a human jumps in when needed.

How Quickly Can a Business Expect Results From Custom GPTs?

Most businesses see a noticeable difference within the first few weeks—especially when the GPT is used for support or lead gen. You’ll likely see an increase in engagement, more qualified leads and fewer repetitive tasks on your plate by integrating multiple agents into your workflow. Over time, as the model learns and your team refines it, those results should only get better.

What Metrics Should Be Tracked When Using AI Customer Agents?

Key KPIs to watch include:

  • Resolution rates (how often the AI solves the issue)
  • Escalation rates (when a human needs to step in)
  • Prompt click-through rate (how often users engage)
  • Time on site
  • Bounce rate
  • Feedback scores (was the AI helpful?)

These metrics will help you gauge not just performance, but also where your AI agents can improve.

Is Agentic AI Suitable for Small Businesses?

Agentic AI can be very beneficial for small businesses that have digital processes that can be automated, want to increase efficiency without hiring more staff and are open to learning and adopting new technologies.

However, small businesses should start incrementally, choosing use cases that offer quick wins (like automated customer support or lead follow-up), and scale from there.

Tools like HubSpot make it incredibly simple to implement AI agents and custom GPTs—no dev team required. You get 24/7 support, smarter workflows, and a more responsive customer experience without hiring more people.

How Does Kuno Creative Help Implement Agentic AI Solutions?

We help you every step of the way—from strategy to execution. That includes:

  • Defining your goals and ideal AI use cases
  • Creating and training Custom GPTs using your business data
  • Building and deploying AI agents in HubSpot
  • Ongoing optimization to ensure the AI gets smarter (and more helpful) over time

We don’t set and forget—we help you build an AI system that actually yields results.

Brittany Nader
The Author

Brittany Nader

Brittany uses her journalism experience to tell stories that make an impact. Before Kuno, she worked as a Content Marketing Specialist for several brands. She freelances as a producer and writer for Northeast Ohio's NPR station and has won several awards from the Society of Professional Journalists.
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