Introduction. Though artificial intelligence is still debatable, its major impact on language learning is undeniable. The rise of generative AI models offers substantial opportunities for supporting educators, experts and teachers in developing instructional materials. This paper assesses the use of ChatGPT by Russian language learners with an eye toward the nuances of Russian grammar cases and the possible risks connected to AI-generated errors. Purpose. This paper aims to assess student opinions and understanding on using ChatGPT as a tool for learning Russian grammar instances, evaluates its applicability and compares it with traditional learning methods while also considering the importance of teacher guidance when working with AI tools. Materials and Methods. A mixed-methods approach was used to poll and interview fifteen English-speaking students from the Preparatory Faculty at Belgorod State University. The participants were asked about their opinions on using ChatGPT to learn Russian grammar and cases, as well as its perceived advantages and constraints. Results. The study shows that students find the system as acceptable, enhancing engagement, enabling personalized learning, and helping them understand complex subjects. The benefits include the provision of prompt and fast feedback and the capacity to accommodate various learning styles. Thus, for its instantaneous feedback and tailored learning experiences, students considered ChatGPT to be a helpful additional tool. Concerns regarding mistakes in AI-generated explanations and the lack of contextual knowledge were raised, though; furthermore, important ethical problems are plagiarism, academic dishonesty, data privacy and the presence of AI “hallucinations” that can lead to incorrect grammar interpretations. Conclusion. Among ChatGPT's benefits are individualized explanations and fast response and feedback. Its effectiveness is restricted, nevertheless, by occasional errors and the risk of over-reliance. The study emphasizes that these risks highlight the need for teacher supervision and critical checking when students use AI tools for learning Russian cases.  Teachers should mix artificial intelligence tools with traditional methods to improve the process of learning and enhance learning results so that students maintain participation and critical thinking ability. ChatGPT, Russian grammar cases, artificial intelligence, language learning, personalized learning, student feedback, traditional methods, and educational technology.