Introducing Personize: The Generative Personalization Engine Changing Sales & Marketing Forever

By Hamed Taheri, CEO & Founder of Personize

The Problem That Sparked Personize

In my years working with sales and marketing teams, I’ve seen one persistent challenge: personalization.

We all know personalization drives engagement, conversion, and loyalty. Customers expect experiences that feel tailored to them, yet most businesses are stuck delivering generic campaigns. Why? Because true personalization at scale has always been impossible… until now.

For decades, companies invested in CRMs, communication platforms, and web content. They built massive infrastructures to manage millions of contacts and publish endless campaigns, yet utilization remained expensive and ineffective. Reps wasted hours clicking through CRM records. Marketers fought with rigid tools or agencies to produce copy that still felt generic. And when AI tools emerged, they focused on generating content, not carrying forward the context that makes personalization meaningful.

The introduction of GPT-3 marked a turning point. For the first time, generative AI showed it could not only create human-like content but also reason, make decisions, and act like an expert, processing data while generating output.

Meanwhile, customer data exploded: emails, recordings, notes, digital assets, so much of it siloed or outdated. Marketing libraries went stale, and as discovery shifted from search to AI, updating and personalizing content at scale became impossible.

We founded Personize to change that,  harnessing generative AI to automate research, data entry, content creation, optimization, and reasoning, so businesses can finally deliver personalization at scale.

Introducing the Generative Personalization Engine (GPE)

At the core of Personize is what we call the Generative Personalization Engine (GPE), a breakthrough AI system that combines three things that have never worked together before:

1. Research – Agents dig into CRM data, behavioral signals, and external sources to understand each prospect.
2. Reasoning – AI agents adapt to reason like domain experts, applying the education and experience your team has built over years. They qualify, segment, plan, strategize, take actions, and engage accounts based on your business’s unique logic.
3. Writing – They generate personalized outreach, playbooks, and campaigns that sound like they were crafted by your best rep or marketer.

Unlike other AI tools, our GPE doesn’t just create content. It powers personalization at scale across 10,000, 50,000, or even millions of contacts. Every message, every touchpoint, every play is tailored, contextual, and aligned to your brand voice.

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CortexUCM™: A Living Customer Memory

One of our most exciting innovations is CortexUCM™ — Unified Customer Memory.

Think about most platforms: they forget what happened yesterday. An email opened last week, a call transcript from a month ago, or a support ticket logged last year rarely makes its way into today’s outreach. That’s why so much marketing feels tone-deaf.

CortexUCM™ changes everything. It creates a living memory of every interaction, across sales, marketing, and CX touchpoints. Each AI agent inside Personize taps into that memory, meaning your next campaign is smarter because it remembers what worked before.

For the first time, your CRM becomes a continuous learning system. That’s personalization that compounds, not resets, over time.

AI Content Producer: Game-Changing for Marketing Teams

While sales teams are unlocking speed and precision, marketers need another superpower: producing and continuously updating high-quality, on-brand content at scale.

That’s why we have developed AI ContentProducer, our newest feature in Personize.

It expands the reach of personalization beyond outbound into inbound marketing by generating fully researched, SEO- & AI-optimized blog posts, evergreen industry-specific pages, and thought leadership content automatically.

Instead of spending weeks briefing writers, waiting on drafts, and reworking content to align with your ICP, marketers can:

• Turn one idea into dozens of publish-ready assets.
• Tailor content by industry, persona, or buyer stage.
• Ensure consistency of tone, compliance, and brand voice.

This is inbound marketing acceleration, without the bottlenecks.

The Features That Make It Work

In addition to CortexUCM™ and AI ContentProducer, Personize offers a suite of agentic features built natively inside HubSpot:

• AI Studio – Build, test, and deploy AI agents with no code, directly in HubSpot workflows.
• AI Researcher – Combines CRM plus external data for deep, real-time insights on accounts and contacts.
• AI Writer – Generates hyper-personalized copy for email, LinkedIn, call scripts, landing pages, and more.
• AI SmartProperties – Embeds AI-generated insights directly into HubSpot fields for automation and reporting.
• AI AgentCatalog – Access prebuilt expert agents or bring your own, seamlessly integrated.

Every feature is designed to keep you working inside HubSpot, eliminating the friction of exporting data or adding disconnected platforms.

The Benefits Our Customers Are Already Seeing

Early adopters of Personize are reporting dramatic impact:

• Time savings – SDRs spend less time researching and formatting, and more time having real conversations.
• Revenue lift – Campaigns and sequences are converting faster, with higher reply and meeting rates.
• Content velocity – Marketing teams can publish more, targeted content without adding headcount.
• Operational efficiency – By embedding into HubSpot, Personize reduces tool sprawl and automates where it counts.

One customer put it perfectly: “Personize is unlike anything else we’ve seen. It’s solving the toughest go-to-market challenges: saving our sales teams hours of manual prep while surfacing new revenue opportunities we couldn’t reach before.”

Why This Matters Now

The sales and marketing tech landscape is crowded. AI copilots can help draft an email. CRM add-ons can summarize a record. Prospecting tools can give you more contacts.

But none of those solve the real gap: native, end-to-end personalization inside HubSpot.

Today’s buyers expect businesses to engage them the way AI systems like ChatGPT interact: with memory, context, and relevance. Every touchpoint should feel like it was designed just for them, while still working at the scale of millions.

Personize is built directly into HubSpot, which means GTM teams don’t need to export data, learn another system, or stitch together disconnected tools. Instead, every insight, every action, and every piece of personalized content is embedded where your teams already work — in HubSpot workflows, records, and properties.

For sales reps, this means leads come pre-qualified with personalized sequences and call scripts already waiting. For marketers, this means campaigns adapt automatically to ICP logic, customer behavior, and brand rules without leaving HubSpot. For RevOps, it means one source of truth, one automation engine, and no wasted effort reconciling tools.

With Personize, HubSpot transforms from a CRM into a Generative Personalization Engine — giving GTM teams the power to research, reason, and personalize at scale without friction.

The Future of Personalization

For the first time, businesses can truly know their customers and create one-to-one experiences that drive revenue and outpace competitors. With the Personize GPE built into your CRM, teams are freed from content bottlenecks and repetitive research. They gain scalable memory of every customer interaction, stay fully in the know, and deliver tailored engagement at every step.

What matters most is the quality and impact of each message, not the volume.

This is what we mean when we say:
👉 If you’re still manually clicking through contacts in 2025, you’re already behind.

Join Us!

Personize officially launches on September 22, 2025.

To celebrate, we’re opening our Founders Club, limited to the first 25 members. It’s an exclusive community of forward-thinking sales and marketing leaders who want early access, direct input into the roadmap, and unique benefits as we grow. Apply here!

And join us on September 24 as we host live webinaJ live webinar to showcase Personize in action and share real-world use cases from our early customers. Join here!

If you’re ready to turn your HubSpot into a true personalization engine, now is the time to join us.

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