OpenAI opens GPT-3.5 Turbo up for custom tuning

Fine-tuning lets businesses essentially hone ChatGPT to a more focused model that’s especially efficient for certain tasks. The supervised training would make a bot that’s unique to the client company so that it offers, say, reliable responses in a specific language or with more concise wording. Until now, business customers were limited to GPT-3 variants for this, like davinci-002 or babbage-002.

The model would come pre-trained, like GPT-4, up to September 2021 before being fed company…