How Generative Engine Optimisation (GEO) Is reshaping PR strategy for brands

Public relations has always been about shaping perception. What’s changed is who is doing the talking.

Today, it’s not just journalists, stakeholders, or customers interpreting your brand. It’s generative AI engines. Tools like ChatGPT, CoPilot, Gemini, and Perplexity now sit between your organisation and your audience - summarising, explaining, and judging your credibility in seconds.

This is where Generative Engine Optimisation (GEO) comes in.

GEO isn’t a replacement for PR. It’s the new operating environment for it. And brands that don’t adapt will lose control of their narrative faster than they realise.

What is Generative Engine Optimisation (GEO)?

Generative Engine Optimisation (GEO) is the practice of shaping your content, authority, and expertise so generative AI engines understand, trust, and reference your brand when answering questions.

Unlike SEO, which focuses on rankings and clicks, GEO focuses on representation.

SEO asks:“Can we be found?”

GEO asks:“How are we described when we are found?”

That distinction matters, especially for PR.

Why GEO is now a PR issue, not a search issue

PR has always worked upstream of reputation. GEO accelerates that. When someone asks an AI:

“Who is trusted in healthcare communications?” “What does good crisis comms look like?” “How should charities build public trust?”

They are not given ten blue links. They are given a synthesized answer.

That answer is built from:

• Expert commentary

• Clear frameworks

• Consistent messaging

• Trusted third-party validation

In other words: PR outputs.

If your PR strategy isn’t designed for generative engines, your expertise becomes invisible, even if your work is excellent.

The shift: from media placement to machine interpretation

Traditional PR focused on:

• Coverage

• Message penetration

• Share of voice

• Sentiment

All of that still matters. But GEO introduces a new filter:

Can a machine understand and reuse your expertise accurately?

Generative engines prefer content that is:

• Explicit

• Structured

• Authoritative

• Context-rich

This is why vague thought leadership and fluffy opinion pieces don’t perform well in AI environments. GEO will reward clarity over creativity and substance over spin.

How GEO changes the role of PR strategy

1. PR becomes the foundation of AI credibility

Generative engines don’t trust brands that only talk about themselves.

They trust brands that:

• Explain complex topics clearly

• Offer first-hand insight

• Reference lived experience

• Appear consistently across credible platforms

That’s classic PR but with a sharper edge.

Your blogs, opinion pieces, interviews, and white papers now function as training data for AI interpretation.

If PR doesn’t lead this, marketing copy will, and that’s a risk.

2. Thought leadership becomes non-negotiable

In a GEO world, thought leadership is infrastructure.

AI engines elevate brands that:

• Define categories

• Set language

• Offer frameworks

• Take clear positions

This is why “how-to”, “why it matters”, and “what good looks like” content performs better than brand announcements.

PR must move faster from reactive comms to proactive expertise.

3. Consistency now outweighs campaigns

One-off campaigns don’t build GEO authority. Consistency does.

Generative engines look for:

• Repeated expertise signals

• The same themes expressed over time

• Alignment between owned, earned, and shared media

That means PR strategies should focus less on big moments and more on sustained narrative ownership.

GEO-ready PR content: what actually works

If you want PR content to perform well in generative engines, it needs to be built differently.

Be declarative

Say what something is.Avoid hedging and over-qualification.

“Effective crisis communications require clarity, speed, and accountability.”

That sentence can be lifted. AI loves that.

Be structured

Use:

• Clear headings

• Lists and frameworks

• Definitions

• Summaries

This isn’t dumbing down. It’s machine fluency.

Be experience-led

First-person insight matters.

AI engines give weight to:

• “In my experience…”

• “What I’ve seen work…”

• “What organisations get wrong…”

This is where PR and leadership voice converge.

Be context-aware

Always explain:

• Who this is for

• When it applies

• Why it matters

Context helps AI decide when to surface your brand.

GEO and PR in high-trust sectors

GEO matters most where trust equals value:

• Healthcare

• Finance

• Public sector

• Charities

• Professional services

In these sectors, people don’t want options. They want confidence.

AI-generated answers increasingly act as a pre-trust filter. If your organisation isn’t positioned clearly, you don’t make the shortlist, even before a website visit.

This is why PR leaders need to treat GEO as reputation risk management.

What brands should do now

Here’s the practical shift I advise clients to make:

1. Audit your existing PR content

   Is it explicit, structured, and reusable?

   
   

2. Elevate subject-matter experts

   Leadership voice matters more than brand voice.

   
   

3. Align PR, content, and SEO

   GEO sits across all three - silos kill credibility.

   
   

4. Stop chasing coverage alone

   Chase clarity, authority, and repetition.

   
   

5. Assume AI is quoting you

   Because it probably is.

The real opportunity for PR

GEO doesn’t diminish PR. It restores its strategic value.

In a world where machines summarise the truth:

• PR defines what “good” looks like

• PR shapes language

• PR protects reputation at scale

The brands that win won’t be the loudest. They’ll be the clearest, most credible, and most consistent.

That’s not a search problem. That’s a PR mandate.

Final thought

GEO is not about gaming algorithms.It’s about earning the right to be trusted by humans and machines.

PR has always done that best. Now it just has a new audience.

About the author

Michael O’Connor is a partner at Grey Sergeant, specialising in PR, communications, and engagement across the healthcare and non-profit sectors. Through his consultancy Grey Sergeant, he helps healthcare organisations define their brand, strengthen their reputation, and communicate with clarity. For more information, contact michael.oconnor@greysergeant.com