Unveiling ChatGPT’s usage in open source projects: A mining-based study
Open accessAbstract
Large Language Models (LLMs) have gained significant attention in the software engineering community. Nowadays developers have the possibility to exploit these models through industrial-grade tools providing a handy interface toward LLMs, such as OpenAI's ChatGPT. While the potential of LLMs in assisting developers across several tasks has been documented in the literature, there is a lack of empirical evidence mapping the actual usage of LLMs in software projects. In this work, we aim at filling such a gap. First, we mine 1,501 commits, pull requests (PRs), and issues from open-source projects by matching regular expressions likely to indicate the usage of ChatGPT to accomplish the task. Then, we manually analyze these instances, discarding false positives (i.e., instances in which ChatGPT was mentioned but not actually used) and categorizing the task automated in the 467 true positive instances (165 commits, 159 PRs, 143 issues). This resulted in a taxonomy of 45 tasks which developers automate via ChatGPT. The taxonomy, accompanied with representative examples, provides (i) developers with valuable insights on how to exploit LLMs in their workflow and (ii) researchers with a clear overview of tasks that, according to developers, could benefit from automated solutions.
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Only a few studies have systematically investigated the real-world adoption and usage patterns of GenAI tools.
“only a few studies have systematically investigated their real-world adoption and usage patterns, for example, by mining GenAI mentions in repositories [6], analyzing AI-generated pull request descriptions [7], or compiling datasets of developer-ChatGPT conversations [8].”
From Self-Admitted GenAI Usage in Open-Source Software (2026) · cites this paper as [6]
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Cites
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BackgroundAn Empirical Study on Learning Bug-Fixing Patches in the Wild via Neural Machine Translation
Tufano, M., Watson, C., Bavota, G., Penta, M. D., White, M., & Poshyvanyk, D. (2019) · ACM Transactions on Software Engineering and Methodology · doi:10.1145/3340544 · Cited by 370 · see citing works
Self-citationAn empirical evaluation of GitHub copilot's code suggestions
Nguyen, N., & Nadi, S. (2022) · Proceedings of the 19th International Conference on Mining Software Repositories · doi:10.1145/3524842.3528470 · Cited by 313 · see citing works
Self-collaboration code generation via ChatGPT
Dong, Y., Jiang, X., Jin, Z., & Li, G. (2024) · ACM Transactions on Software Engineering and Methodology · doi:10.1145/3672459 · Cited by 256 · cited 1× · see citing works
“Dong et al. [61] set up an experimental design aimed at mimicking human teamwork via ChatGPT: The authors assemble a virtual team composed of three ChatGPT instances instructed to cover different roles, namely analyst, programmer, and tester.”
MethodProductivity Assessment of Neural Code Completion
Ziegler, A., Kalliamvakou, E., Li, X. A., Rice, A., Rifkin, D., Simister, S., Sittampalam, G., & Aftandilian, E. (2022) · Proceedings of the 6th ACM SIGPLAN International Symposium on Machine Programming · doi:10.1145/3520312.3534864 · Cited by 200 · see citing works
Productivity Assessment of Neural Code Completion
Ziegler, A., Kalliamvakou, E., Simister, S., Sittampalam, G., Li, A., Rice, A., Rifkin, D., & Aftandilian, E. (2022) · arXiv · doi:10.48550/arxiv.2205.06537 · Cited by 200 · see citing works
Is GitHub copilot a substitute for human pair-programming?: an empirical study
Imai, S. (2022) · Proceedings of the ACM/IEEE 44th International Conference on Software Engineering: Companion Proceedings · doi:10.1145/3510454.3522684 · Cited by 116 · see citing works
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Self-Admitted GenAI Usage in Open-Source Software
Xiao, T., Fan, Y., Calefato, F., Treude, C., Kula, R. G., Hata, H., & Baltes, S. (2026) · IEEE Transactions on Software Engineering · doi:10.1109/tse.2026.3681886 · Cited by 1 · see citing works
- Authors
- Tufano, R., Mastropaolo, A., Pepe, F., Dabic, O., Di Penta, M., & Bavota, G.
- Affiliations
- Università della Svizzera italiana (CH)
- University of Sannio (IT)
- Software Institute @ Università della Svizzera Italiana, Lugano, Switzerland
- University of Sannio, Italy, Benevento, Italy
- ORCID
- Venue
- Proceedings of the 21st International Conference on Mining Software Repositories
- Publisher
- ACM
- Published
- 2024-04-15
- Pages
- 571-583
- OpenAlex
- W4400242312
- Cited by
- 38
- References
- 8
- Citations by year
- 2026: 13 · 2025: 22 · 2024: 3
- FWCI
- 12.25
- Type
- conference paper
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- Locations
- International Conference on Mining Software Repositories (MSR) (publishedVersion, cc-by)
- arXiv (Cornell University) (submittedVersion)
- arXiv (Cornell University)
- Funders
- European Research Council (851720)
- PRIN 2020 (2020W3A5FY)
- Topics
- Physical Sciences › Computer Science › Information Systems › Software Engineering Research
- Physical Sciences › Computer Science › Information Systems › Software Engineering Techniques and Practices
- Physical Sciences › Computer Science › Computer Science Applications › Open Source Software Innovations
- Keywords
- ChatGPT, large language models, open source projects, task taxonomy, developer workflows, LLM-assisted programming
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