The deployment of Large Language Models (LLMs) in real-world applications presents both opportunities and challenges, particularly in multilingual and code-mixed communication settings. This research evaluates the performance of seven leading LLMs in sentiment analysis on a dataset derived from multilingual and code-mixed WhatsApp chats, including Swahili, English and Sheng. Our evaluation includes both quantitative analysis using metrics like F1 score and qualitative assessment of LLMs' explanations for their predictions. We find that, while Mistral-7b and Mixtral-8x7b achieved high F1 scores, they and other LLMs such as GPT-3.5-Turbo, Llama-2-70b, and Gemma-7b struggled with understanding linguistic and contextual nuances, as well as lack of transparency in their decision-making process as observed from their explanations. In contrast, GPT-4 and GPT-4-Turbo excelled in grasping diverse linguistic inputs and managing various contextual information, demonstrating high consistency with human alignment and transparency in their decision-making process. The LLMs however, encountered difficulties in incorporating cultural nuance especially in non-English settings with GPT-4s doing so inconsistently. The findings emphasize the necessity of continuous improvement of LLMs to effectively tackle the challenges of culturally nuanced, low-resource real-world settings.

评估了在多语言和代码混合通信环境中使用的七个领先大型语言模型（LLMs）的情感分析性能，发现GPT-4和GPT-4-Turbo在理解语言输入和处理上下文信息方面表现出色，与人的一致性高且决策过程透明，但在非英语环境中的文化细微差别方面存在不稳定性，结果强调了LLMs不断改进以有效应对文化差异、资源有限的真实世界环境的必要性。

超越指标：评估LLM在文化细微、资源贫乏的真实场景中的有效性