AI is Already Writing Almost One-Third of New Software Code
hubie writes:
Generative AI is reshaping software development - and fast:
[...] "We analyzed more than 30 million Python contributions from roughly 160,000 developers on GitHub, the world's largest collaborative programming platform," says Simone Daniotti of CSH and Utrecht University. GitHub records every step of coding - additions, edits, improvements - allowing researchers to track programming work across the globe in real time. Python is one of the most widely used programming languages in the world.
The team used a specially trained AI model to identify whether blocks of code were AI-generated, for instance via ChatGPT or GitHub Copilot.
"The results show extremely rapid diffusion," explains Frank Neffke, who leads the Transforming Economies group at CSH. "In the U.S., AI-assisted coding jumped from around 5% in 2022 to nearly 30% in the last quarter of 2024."
At the same time, the study found wide differences across countries. "While the share of AI-supported code is highest in the U.S. at 29%, Germany reaches 23% and France 24%, followed by India at 20%, which has been catching up fast," he says, while Russia (15%) and China (12%) still lagged behind at the end of our study.
[...] The study shows that the use of generative AI increased programmers' productivity by 3.6% by the end of 2024. "That may sound modest, but at the scale of the global software industry it represents a sizeable gain," says Neffke, who is also a professor at Interdisciplinary Transformation University Austria (IT:U).
The study finds no differences in AI usage between women and men. By contrast, experience levels matter: less experienced programmers use generative AI in 37% of their code, compared to just 27% for experienced programmers. Despite this, the productivity gains the study documents are driven exclusively by experienced users. "Beginners hardly benefit at all," says Daniotti. Generative AI therefore does not automatically level the playing field; it can widen existing gaps.
The study "Who is using AI to code? Global diffusion and impact of Generative AI" by Simone Daniotti, Johannes Wachs, Xiangnan Feng, and Frank Neffke has been published in Science (doi: 10.1126/science.adz9311).
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