Earlier this year OpenAI introduced GPT-4o, a cheaper version of GPT-4 that is almost as capable. However, GPT is trained on the whole Internet, so it might not have the tone and style of output for your project – you can try to craft a detailed prompt to achieve that style or, starting today, you can fine-tune the model. “Fine-tuning” is the final polish of an AI model. It comes after the bulk of the training is done but it can have strong effects on the output with relatively little effort. OpenAI says that just a few dozen examples are enough to change the tone of the output to one that...

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