AI Marketing

# How AI is Redefining
Paid Advertising in 2025

Vikram Rao
CEO, NEXUS · Mar 2025
6 min read

## The Shift Is Already Happening

Three years ago, the idea of an AI autonomously managing your entire Google Ads account would have seemed far-fetched. Today, it's not just possible — it's producing results that human optimisation alone simply cannot match.

Performance Max campaigns, Meta's Advantage+ suite, and a new generation of third-party AI tools are processing millions of signals per second to serve the right ad to the right person at the right moment. The advertisers winning in 2025 are the ones who understand how to work with these systems, not against them.

## What's Changed

The biggest shift is in creative. AI can now generate thousands of ad variations, test them in real-time, and automatically surface the best performers. Human creativity is still essential — but its role has evolved from producing a few polished ads to feeding the machine with high-quality raw material.

Audience targeting has also fundamentally changed. Manual interest and demographic targeting is giving way to broad audience signals, where the AI uses first-party data and behavioural patterns to find your best customers automatically.

## How to Adapt Your Strategy

The advertisers we see struggling are those still trying to micro-manage campaigns the way they did in 2019. The ones thriving have embraced a new role: setting clear goals, feeding the algorithm quality creative, and letting the machine optimise the execution.

"Your job as a marketer is no longer to control every variable. It's to give the algorithm everything it needs to succeed — the right objective, the right creative, and the right data."

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The Shift Is Already Happening What's Changed How to Adapt
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