Fine-tuning ChatGPT: Surpassing GPT-4 summarization performance while reducing costs by 63% and increasing generation speed by 11x using synthetic data and LangSmith

Editor's Note: This post was written by Charlie George, machine learning engineer at Elicit.

Summary

• Fine-tuned ChatGPT beats GPT-4 for news article summarization using only synthetic data.
• We quantify this improvement using human-level automated evaluation using the ScoreStringEvalChain and improved PairwiseStringEvalChain.

Context

GPT-4 is widely regarded as

article automated chatgpt costs data editor engineer evaluation fine-tuning george gpt gpt-4 human improvement machine machine learning machine learning engineer performance speed summarization synthetic synthetic data