Expired85% confidenceFactTime unknown
One year after submission, approximately 70% of code written by senior human developers remains in the project, whereas the survival rate of agent-generated code averages only around 50%, with the lowest being below 40%.
1
Sources
85%
Confidence
Medium-term (~90 days)
Relevance
5/31/2026
First Seen
Valid until: 8/29/2026(expired)
Sources
Related Claims
Unverified软件工程领域的经典研究表明，代码编写仅占软件总生命周期成本的约20%，而维护占据了剩余的80%79% similarUnverified单纯看教程的知识留存率约为20%，而动手写代码做项目的留存率能达到75%至90%76% similarVerifiedCoding may account for only 30%–40% of a developer's time across the entire software development lifecycle.75% similarUnverifiedResearch shows that developers spend approximately 60% to 70% of their development time understanding context before they can safely begin modifying code.75% similarUnverifiedIn a current project, a certain senior developer has had over 90% of their code generated with AI assistance.70% similar
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