Upstage, a leading South Korean AI company, has developed Solar-Proofread, a fine-tuned version of their proprietary small language model, Solar-Mini, to aid a major international media company in streamlining its proofreading process. Achieving 79% accuracy, Solar-Proofread surpassed both the base and fine-tuned versions of GPT-4o mini in error detection and cost-effectiveness, significantly reducing the workload of the media company's editorial staff. This innovation was made possible through a collaboration with Predibase, a platform known for its accuracy and rapid deployment capabilities, which allowed Upstage to tailor Solar-Mini for specific business use cases, highlighting the model's potential for tasks beyond proofreading, such as customer feedback analysis and financial reporting. This success underscores the ability of small language models (SLMs) to outperform larger models in specialized tasks, offering businesses efficient and cost-effective AI solutions.