Pocket GPT: A Lightweight Generative AI-Based Real-Time Language Learning Platform for Enhanced Multilingual Proficiency

Language learning is important; traditionally, improving language skills mostly depends on the teacher–student interaction. Instructors who are trained with expert language skills can train the students. But in the modern technological era, we are increasingly focused on devices and human–machine interactions every day. This immediate shift demands well-versed language platforms like ChatGPT and Large Language Models (LLM), which are significantly more advanced in language training through NLP and other language processing models. However, accessibility is one of the limitations that we face regarding this HiFi model. These advanced platforms are not portable to all devices. GPT and other language models are resource-constrained and require effective resources to respond in real-time. To address this, we designed a Pocket GPT model—an advanced GPT app that is portable for all devices (like smartphones, tab and laptops). This novel Pocket GPT involves Generative AI (GenAI) techniques, which encourage human-like interactions in real time. The suggested model combines the advantages of LeBERT (a lightweight BERT) based on powerful language understanding and a masked CNN layer for further enhanced processing efficiency and accuracy. Through interactive exercises, contextual understanding and individualized feedback, this software aims to provide real-time adaptive language learning that can handle various user proficiency levels. The model simulation is conducted using a dataset of 120 Thai students who were unfamiliar with the English language at the age of 19–20. Participants were classified into two groups: control and experimental groups. Control group students depend on traditional language learning systems, and experimental group students can interact with the proposed Pocket GPT with their smartphones or tablets. The results highlight the significant improvement in the English proficiency of the experimental group. Feedback from the focused experimental group interview highlights improved engagement, motivation and confidence in language learning. Thus, the Pocket GPT is a fine contribution to the language learning platform, which can train not only English but is also accessible to train, with all language skills with its pre-trained efficiency.