AI for
Marketing
Agencies
Clients are asking why they're paying you when they could just use ChatGPT. Gartner says 22% of CMOs are already cutting back on agencies because of GenAI. We help you rebuild the back office, defend the strategic work, and re-price for outputs before someone else does it for you.
22%
OF CMOs CUTTING AGENCY USE (GARTNER)
~9%
WPP HEADCOUNT CUT IN 2025
$500K
SORRELL'S NEW PRICE FOR A $2.5M AD
The billable hour is dying. Sorrell said so himself.
Sir Martin Sorrell has said his teams now deliver for $500,000 in four to six weeks what used to cost $2.5m and four months. He told Digiday the billable hour is dying and he's moving Monks onto subscription-style fees because the maths on time-and-materials doesn't work anymore.
WPP cut headcount by roughly 9% in 2025 and has dropped freelancer use by a quarter over two years. Forrester forecasts another 15% reduction in agency jobs in 2026, after an 8% cut in 2025. Rory Sutherland, Ogilvy UK's vice chairman, has said there is "no connection at all between the hours you spend on a problem and the value of the solution."
If the holdcos can't defend the hourly rate, you can't either. The agencies that come out the other side will sell outcomes instead of timesheets.
YESTERDAY'S AGENCY
- Bills time, not outcomes
- Juniors writing first drafts
- Deck factory, briefing chains, status calls
- Client asks "why not just use ChatGPT?"
- Margins compressing every renewal
REBUILT AROUND AI
- Priced per output, per asset, per result
- Drafts written by your own agents, on your brand
- Brief, deck, variants and report all generated
- You're the AI capability they're buying
- Margin held because cost of delivery collapsed
Five parts of an agency we already automate.
Not slide decks about AI. Working software running inside your agency, against your tools, on your brand. The stack we build with creative and media shops.
Brief to deck
RFP or client brief in, first-cut strategy deck out. Your house template, your tone, your past wins as context. The senior reviews and reshapes, doesn't start from a blank slide.
Copy on brand
A model fine-tuned on your client's tone-of-voice docs, past campaigns and approved copy. Variants for paid, organic and email in one pass. CAP code checks built in.
Asset factory
Midjourney, Firefly, Runway and ElevenLabs wired into one pipeline with brand guardrails, licence logging and an approval queue. Static, video, voiceover, sized for every placement.
Reporting that writes itself
GA4, Meta, TikTok, LinkedIn, search console, Looker. Pulled, summarised, written up in your account team's voice. Monday morning client emails, drafted before they wake.
Client call to action
Every call transcribed, decisions extracted, actions assigned, contact reports drafted. The bit account managers hate doing, and now don't. Searchable across every account.
Where we come in.
We're an agency too. We build agentic systems for clients and run our own ops the same way. We've already done this for ourselves. Now we help other shops do it.
No twelve-month consulting engagement. A short audit, the first working agent live, then a roadmap to rebuild the rest. You own the prompts, the fine-tunes and the code.
BOOK AN AGENCY AUDITAgency audit
We look at your timesheets, your retainers and your delivery process. We tell you which of your hours are already commoditised by ChatGPT, which clients are at risk, and the three workflows to automate first. Priced and named up front.
Capture the agency brain
Brand books, tone-of-voice docs, past decks, winning RFPs, client backgrounders. Loaded into one place your AI can read. Without this every agent sounds like ChatGPT. With it, they sound like you.
Launch the first agent
Pick the workflow with the worst margin. Brief to deck. Or weekly client reports. Or asset variants. Live, used by the account team straight away. Hours that used to be billed at junior rates now happen overnight.
Re-price the offer
We sit in with you and your commercial lead and rework the retainer. Outputs and outcomes, not days. Most of our agency clients raise effective rates while still telling the buyer the price has come down.
It's already happening to your peers.
Three things published this year, none of them predictions. Each one makes the next client conversation harder.
22% of CMOs already cutting back.
Gartner's 2025 CMO Spend Survey, 402 CMOs across North America, the UK and Europe. 22% said GenAI lets them reduce reliance on agencies for creativity and strategy. 39% said they're planning to cut agency budgets outright.
Your clients are behind you.
95% of UK digital advertising businesses use AI. Across UK business as a whole, the number is 16%. Your CMO has read three articles. You're already running the tools. That gap is the most sellable thing you've got.
A 100% gen-AI campaign delivered.
Brandtech's Pencil produced a fully generative campaign for French leather house Lancel. Not a test, not a hack day. A real campaign for a real brand. The AI-native shops aren't theoretical, they're winning pitches.
Sources: Gartner 2025 CMO Spend Survey (gartner.com, 12 May 2025); IAB UK "Powering Growth: The UK's Hidden AI Engine" (iabuk.com, May 2026); Brandtech Group / Pencil case study for Lancel, 2024; Digiday on Sir Martin Sorrell and S4 Capital/Monks (March 2026); Forrester "Predictions 2026: Marketing Agencies" (forrester.com).
The people who built this industry, on what's coming.
"The billable hour is dying."
SIR MARTIN SORRELL, S4 CAPITAL / MONKS, DIGIDAY MAR 2026
"There is no connection at all between the hours you spend on a problem and the value of the solution."
RORY SUTHERLAND, VICE CHAIRMAN OGILVY UK, THE DRUM FEB 2026
"The end of the world isn't nigh, it's AI."
SIR JOHN HEGARTY, BBH FOUNDER, THE DRUM APR 2024
The ones we get asked first.
Won't this just make my juniors redundant?
The work juniors used to do is already going. WPP's own freelancer pool is down 25%. The choice isn't "keep the junior layer or replace it" anymore, it's "let your clients use ChatGPT instead of paying you, or make your juniors ten times more productive doing strategic work." We help with the second one.
My creatives say AI work is soulless. Are they wrong?
They're right about the bad version. Coca-Cola's 2024 AI Christmas ad got called "soulless" in the press for a reason. We don't replace your creatives' taste. We give them tools that take the drudgery off, so the work they put out has more of their thinking in it, not less.
Doesn't ChatGPT or Copilot already do this?
For a marketer in-house, often yes. For your agency, the point isn't access to a model, it's the system around it. Your brand books, your client tone-of-voice docs, your past decks, your approvals, your asset library, your placement specs, your media plans. None of that lives inside ChatGPT. We build the layer that does.
What about ASA and ICO rules on AI content?
CAP's May 2025 guidance is clear: no blanket requirement to disclose AI use, but the CAP code on misleadingness applies regardless of how content was made. The ICO has said legitimate interest is the only available basis for training generative models on web-scraped personal data, and that vague transparency notices won't pass the balancing test. We build that in, so your client doesn't end up in front of either of them.
We serve EU brands. What about the EU AI Act?
The prohibited-practices and AI-literacy provisions have been in force since 2 February 2025. Article 50 transparency obligations on chatbots and deepfakes apply from 2 August 2026. Prohibited-practice fines reach €35m or 7% of global turnover; transparency breaches up to €15m or 3%. Either way they apply to your client, not just the model provider. We bake the disclosure logic, the literacy training and the audit trail into the build.
How do we re-price retainers without losing the client?
You don't tell them you've taken cost out. You tell them what they're getting, in outputs. "20 paid variants a week, weekly insight report, monthly creative refresh" lands very differently to "three FTEs at our rate card." Most agencies we work with come out with a higher monthly fee, a happier client, and more capacity. We help with the conversation.
How much does it cost?
The audit is fixed-fee. The first agent is priced before we start building, scoped against the audit. After that it's per workflow, fixed per phase. We tell you the number up front. You own everything we build.
Who owns the prompts, fine-tunes and code?
You do. Source, prompts, fine-tune weights, evals, the lot. Host it with us or take it in-house. We're not in the business of locking agencies in. The holdcos already tried that with WPP Open.
Get ahead of the conversation your clients are about to have.
Bring us your last three retainers and your last three pitch losses. On a 30-minute call you'll have a clear view of which hours your clients are about to stop paying for, which workflows to automate first, and how to re-price what's left.