How to train ChatGPT on my brand voice?

ROI answers

Training ChatGPT – or similar large language models – on your brand voice involves ‘fine-tuning’ the model using examples of your existing content, essentially teaching it to replicate your specific tone, style, and terminology.

  • Knowledge Base Upload: Current systems include the ability to upload comprehensive brand guidelines, style guides, and existing marketing materials directly into the platform.
  • Content Batch Processing: ROI.com.au’s platform now features automated batch processing of your website copy, blog posts, social media content, and even customer service transcripts.
  • Voice Persona Creation: We utilise advanced prompting techniques to define a ‘voice persona’ – outlining key characteristics like formality, humour, and target audience – to guide the fine-tuning process.
  • Australian Language Optimisation: Our systems are specifically optimised for Australian English, ensuring accurate colloquialisms and avoiding US-centric phrasing.

In 2026, Australian businesses must also be mindful of compliance with the updated Australian Consumer Law regarding AI-generated content; transparency about AI usage is key. ROI.com.au’s process includes documentation and audit trails to demonstrate responsible AI implementation, ensuring your brand remains compliant. We also ensure data residency within Australia for peace of mind.

Instead of navigating the technical complexities of fine-tuning and compliance yourself, let our experts handle it. We can take care of all this for you. Contact ROI Growth Agency today to discuss how we can personalise ChatGPT to perfectly represent your brand.


The bottom line

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