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Linux Foundation report finds AI cuts coding time but adds low-quality code and review burden

Report: AI cuts coding time 52%, but 25% of pull requests are low-quality 'AI slop,' adding review burden.

The report says 71% of maintainers agree AI has lowered the barrier to entry, and coding is more accessible, with developers submitting more lines of code than ever. But the benefit is being pushed downstream. Maintainers must verify quality and security, and with more code being written they face more human reviews. AI is proving useful for some easier review tasks, but 21% of respondents said using AI increases the time needed for more complex tasks.

AI-generated reports have already produced false positives and duplicated submissions, wasting human reviewers' time, according to the report. Developer burnout was a common topic a few years ago, but the focus is shifting to maintainer burnout.

The Linux Foundation also noted difficulties in handing code from a writer to a reviewer. Only 61% said they conduct detailed code reviews before submitting, and not all developers disclose their use of AI to the next person in the chain.

The report acknowledges that AI is here to stay in coding. Hilary Carter, research SVP, called for projects to set clear expectations for GenAI, put responsibility for testing and disclosure on contributors, and give maintainers better tools to manage incoming pull requests. Mark Collier, AI & Infrastructure GM, added that the answer is not to slow innovation but to build governance, transparency and trust mechanisms that allow AI-assisted contributions.