Train ChatGPT to Clone Your Voice

Feb 5, 2025 | Tutorials

Wouldn’t it be great, if you could use ChatGPT (or another LLM) to perfectly mimic your voice?

The good news is, this is super easy.

The key is in the acronym GPT – Generative Pre-trained Transformer.

The LLM (Large Language Model) is Pre-trained on content, and then Transforms what it knows (in conjunction with a prompt) to Generate new media.

In addition to the training data that OpenAI (or Perplexity, or Claude, etc) used to train their LLMs, you can add your own content to the training data.

All you need to do is supply the GPT with samples of your content, like so:

Step-By-Step Tutorial: Train ChatGPT to Clone Your Voice

  1. Sign in to ChatGPT
  2. Click on your profile in the upper right
  3. Click on ‘Customize GPT’ (this will affect all future chats universally)
  4. Answer questions
  5. Create a new chat, and paste your website URL to your website at the end of the prompt:
  6. Read my website, and 3 of my recent blog posts, to get a sense for my voice and tone. Reflect back to me how you would describe my writing style.
      • If you are not a blogger, upload writing samples in PDFs, or provide links to your writing online.
  7. Test the voice. Ask it to write 3 social media posts in your voice and style.
  8. Give feedback. Highlight what you like and dislike. Ask it to do more of some things (concise witticism, big metaphors) and less of what you don’t (hashtags, emojis, or whatever).
  9. Repeat 3 times.
  10. Copy one post from the output, paste it into a social media platform, and edit as needed.

If you have a Plus account, you can create a CustomGPT trained on your voice.

  1. Click on your profile picture in the upper right
  2. Click on ‘My GPTs
  3. Click on ‘Create GPT’
  4. Follow steps above from 6 onwards

You will have to select this CustomGPT from the sidebar to use its Pre-Training. I find it helpful to add a pun in your name that adds AI in place of one of the vowels. Mine is CAILAN – the AI version of Caelan.

Once you have a voice clone, you can produce content easily and quickly. Just be careful: don’t produce slop.

There is enough garbage on the Internet. If you’re going to use GenAI for content creation,. be human about it. Use creative taste to decide what gets published, because in the age of GenAI, creative taste matters more than volume.