OpenAI, put to work on the marketing that matters.

Marketing teams use OpenAI models and ChatGPT to analyse campaign performance, research audiences and competitors, draft ads, emails and product copy, summarise calls and documents and prepare reports. The biggest gains come when these tasks are built into structured workflows and agents rather than handled one prompt at a time. That way, outputs are consistent, grounded in your own data and reviewed by the right people before anything is published or changed.

An OpenAI agency helps you put OpenAI models and ChatGPT to work in your business. At Vertical that covers AI audits, agent design, content workflows, custom GPTs, integrations, governance and training. Because we also run paid media, email, CRM and content, we understand the work these tools are meant to support. We are an independent agency, and we build with OpenAI models where they are the right fit for the task.

ChatGPT is the application people use directly, with workspace plans for teams that add shared tools and admin settings. The OpenAI API lets developers build the same models into other systems, such as automation workflows, internal tools or agents that work with your CRM and analytics. Many businesses use both: ChatGPT for everyday tasks across the team, and the API for automated processes that run in the background.

Custom GPTs are tailored versions of ChatGPT set up with specific instructions, knowledge and tools. For a marketing team, that might be a GPT that writes in your tone of voice, one that checks copy against brand guidelines or one that turns meeting notes into briefs. They are useful when they solve a clear, repeated task and are maintained properly. We design them around real workflows and keep them up to date.

We ground every content workflow in your tone of voice, brand guidelines, product information and approved claims. Models draft, and experienced writers and editors review, refine and approve before anything is published. We also build checks for common problems such as invented facts, off-brand phrasing and claims you cannot support. The result is faster content that still sounds like you and stands up to scrutiny.

It can be, with the right setup. We help you decide what data should and should not be shared, review the relevant workspace and API data settings and configure access so only the right people and systems can use it. Sensitive information can be excluded or anonymised. We document clear policies, so your team knows what is appropriate. Good governance makes AI use safer and more consistent across the business.

Yes. Through the API, automation platforms such as Make, n8n and Zapier, or custom integrations, OpenAI models can work with data from your CRM, ad accounts, analytics, email platform and documents. That lets agents analyse real performance, draft content based on current products and prepare reports automatically. Our <a href="/services/agentic-automation" class="vb-inline-link">agentic automation</a> team designs these connections carefully, with clear permissions and review steps.

Both offer excellent models with different strengths, and the right choice often depends on the task, your existing tools and how you want to work. Some businesses standardise on one, while others use different models for different jobs. We work with both, test them against your real tasks and recommend what performs best for you. Our <a href="/services/ai-solutions-development" class="vb-inline-link">AI solutions development</a> work is model-agnostic by design.

We run practical training built around your team's actual work, showing how to brief, review and improve AI outputs with examples from your own campaigns and content. We pair that with clear guidelines and well-designed custom tools, so good habits are easy to follow. Our <a href="/services/ai-training-and-adoption" class="vb-inline-link">AI training and adoption</a> programmes focus on consistent, confident use rather than one-off workshops.

Start with a conversation about how your team uses AI today and where time is being lost. We usually begin with a short audit of current tools, tasks and data, then share a prioritised plan covering quick wins and larger builds. We will tell you plainly where OpenAI will make a real difference to your marketing and where another approach would serve you better.