An AI Creative Agentcy is a creative advertising agency built around AI agents, one where strategy, creative and production run on agentic AI workflows instead of the large teams and billable hours that defined the traditional agency. The name is a deliberate blend of agent and agency: the agency runs on agents, and the agents are the agency.
It is the label Brave New World® uses for itself, because it is the most honest description of how the work actually gets made. Most people search for it as an AI creative agency; we spell it agentcy on purpose.
Agency + agent = “Agentcy”
For twenty years the creative agency was built on two things: big teams and billable hours. An AI Creative Agentcy keeps the part that always mattered (taste, strategy, original ideas) and hands the slow operational layer to AI agents that research, draft, iterate and produce at machine speed.
The shift is measurable. In the ANA's 2023 In-House Agency report, the share of member brands with an in-house agency grew from 42% in 2008 to 82% in 2023, and WFA research found two-thirds of major multinationals running an in-house agency, with a fifth more considering one. Brands are taking the slow, billable layer away from agencies; an AI Creative Agentcy removes it with agents instead.
So “Agentcy” is not a typo. It marks a real shift: the unit of work is no longer the human hour, it is the agentic workflow. Fewer people, faster cycles, the same craft, often better, because the team spends its time on judgement instead of production drudgery.
AI is only as good as the people using it
Almost every agency now uses AI. That is not the same as creating an advantage with it. A large language model in untrained hands just produces generic work faster. The same model, in the hands of people who genuinely understand creative solutions and advertising, becomes a real force. The expertise comes first; AI amplifies it. This is an AI-enabled creative service, not an AI-replaces-the-team gimmick.
Adoption is no longer the differentiator. McKinsey's 2025 State of AI research shows agentic and generative AI spreading across more business functions, with the hard part still the move from pilot to real business outcomes; and in WFA research eighty per cent of multinational brand owners said they were concerned about how agencies use generative AI, and fewer than half (44%) had policies or guidelines. The question brands ask is not whether an agency uses AI but who supervises it.
Three things make the difference.
1. Craft and advertising judgement first. AI does not invent the idea, the strategy or the taste. Senior creative and advertising people do. AI clears away the slow, manual layer so that judgement is what brands are paying for. The tools are commodities; knowing what to do with them is not.
2. AI on every brief, not in the demo. Brave New World® runs its own multi-agent workflow, the Creative Intelligence System, on every single brief (see how AI agents make an advert, step by step), augmenting research, strategy and creative development. It is the operating system of the agency, not a service line bolted on for show.
3. Production at velocity. Generative film, image and copy run through our own studio in London: work that once needed a full live-action shoot now ships in a fraction of the time.
The pay-off lands with the brand: the same senior thinking, delivered with far less time and cost.
What an AI Creative Agentcy is not
- Not an AI tooling reseller. Anyone can buy a subscription. The advantage is in the hands holding the tools: senior creative and advertising judgement, an agentic workflow, deep production muscle.
- Not a holding-network shop. Brave New World® is independent and founder-led. Strategy, creative and production sit in one room.
- Not a prompt shop. AI is woven through the process, not bolted on as a novelty service.
Why it matters for brands
Brands want three things the old model made expensive: speed, transparency and control. An AI Creative Agentcy makes all three cheaper. The same senior team that once needed a department behind it can now move a brief from insight to finished film in days or weeks rather than months, without losing the craft that makes work worth making.
Analog vs. Human + AI: time, cost and impact
The clearest way to understand an AI Creative Agentcy is to compare it with analog creative services, the traditional, pre-AI agency model.
| Dimension | Analog creative services | Human + AI creative services |
|---|---|---|
| Time | Weeks to months per campaign. Big teams, sequential hand-offs and long production timelines. | Days to weeks. Agentic research and drafting compress the slow middle; in-house production ships in a fraction of a live-action timeline. |
| Cost | Priced by headcount and billable hours: you pay for the team, not the outcome. | Priced to the outcome. AI clears the manual operational layer, so brands pay for senior thinking, not for the hours around it. |
| Impact | One or two executions, tested late and optimised slowly. | More ideas explored and more variants tested in market, learning every cycle: guided by people who know what good advertising looks like. Taste, strategy and the final call stay human. |
This is the “Human + AI” part that matters: AI is not replacing the creative team, it is removing the drudgery so senior people spend their time on judgement. The result is faster and cheaper, and because more ideas get tested in market, better informed at every cycle.
Want to see what that looks like on your own brief? Send us a brief: every brief gets a senior team and a reply within one working day.
The short version
An AI Creative Agentcy is what the creative agency becomes when AI stops being a tool it borrows and becomes the way it works: real power in the hands of people who know creative and advertising, and real time and cost savings for the brands they work with. Brave New World® is a working example: founder-led and boutique by choice.
Further reading: How to Choose an AI Creative Agency: UK & EU Checklist, AI Ad Agencies Explained and AI in Creativity: What It Changes and What It Can't.