Following our initial overview of fine-tuning, let’s focus on the foundation of fine-tuning: datasets. These are the essential tools that shape the abilities of Large Language Models LLMs like ChatGPT.
A dataset is like a textbook for our LLMs, packed with examples and scenarios that help the model learn and adapt. It’s where the model gets the knowledge needed to perform tasks for your specific requirements.
The amount of data isn’t as crucial as the data’s relevance and quality. High-quality data ensures that the model develops a clear and focused understanding of the tasks it will perform, much like a student who learns better from a well-written textbook than a pile of unorganized notes.
A dataset with a broad range of examples is key to a well-rounded model. Just as varied experiences enrich a person’s understanding of the world, diverse data helps the model respond to a wider variety of requests and perform tasks more accurately. Ideally cross-functional teams work together and contribute to the creation of high-quality examples, which ensures a well-rounded dataset.
Imagine we’re creating a dataset to fine-tune an LLM for customer service in the electronics industry. Here’s a snapshot of what a single data entry (row) in our dataset might look like:
| System | Customer Inquiry | Expected Model Output |
|---|---|---|
| A friendly and helpful customer support assistant, designed to address users’ technical issues with empathy and efficiency. | “My laptop battery isn’t holding a charge anymore.” | “I’m sorry to hear that your battery isn’t working as expected. Can you tell me the make and model of your laptop so I can assist you further?” |
This data entry helps the LLM understand the context and respond in a manner that’s not only relevant but also aligns with the desired customer service tone and approach. Including examples like this in a dataset ensures that when real customer inquiries come in, the LLM can offer helpful and accurate support, reflecting the quality of service the brand aims to provide.
When your fine-tuned LLM interacts with users, it gathers feedback—kind of like listening to what people say after a conversation. This feedback shows what the LLM is doing well and where it needs to learn more. Maybe it’s not catching the latest tech terms, or it’s misunderstanding certain questions. Using these insights, you update your LLM’s dataset with new information and examples. This isn’t a one-time task; it’s an ongoing process to make sure your LLM stays knowledgeable and relevant.
To actually fine-tune a language model, you need to add your dataset to the model. The dataset is traditionally in JSONL format, where each line in the file is a separate dataset entry, as demonstrated in the previous example. With FinetuneDB, you can easily upload your dataset directly onto the LLM platform, such as OpenAI, and it automatically integrates this data into the language model. Alternatively, you can download your dataset from FinetuneDB and manually add it to the model yourself.