# Your AI coding spend bought 25% more output. Duplication rose 81%.

DevFeed: [Your AI coding spend bought 25% more output. Duplication rose 81%.](<https://devfeed.tech/articles/your-ai-coding-spend-bought-25-more-output-duplication-rose-81-21598.md>)

Original publisher: [Read original article](<https://thenewstack.io/ai-coding-duplication-rose/>)

Author: Steve Fenton

Published: 2026-09-14T14:39:14Z

Content type: article

Language: en

Sources: [The New Stack](<https://devfeed.tech/sources/the-new-stack.md>)

Topics: [ai-coding](<https://devfeed.tech/topics/ai-coding.md>), [Claude Code](<https://devfeed.tech/topics/claude-code.md>), [cursor](<https://devfeed.tech/topics/cursor.md>), [datasets](<https://devfeed.tech/topics/datasets.md>)

Tags: [agentic](<https://devfeed.tech/tags/agentic.md>), [ai](<https://devfeed.tech/tags/ai.md>), [ai-coding](<https://devfeed.tech/tags/ai-coding.md>), [ai-impact](<https://devfeed.tech/tags/ai-impact.md>), [ai-operations](<https://devfeed.tech/tags/ai-operations.md>), [ai-strategy](<https://devfeed.tech/tags/ai-strategy.md>), [ai-tools](<https://devfeed.tech/tags/ai-tools.md>), [claude-code](<https://devfeed.tech/tags/claude-code.md>), [coding](<https://devfeed.tech/tags/coding.md>), [contributed](<https://devfeed.tech/tags/contributed.md>), [contributed-octopus-deploy](<https://devfeed.tech/tags/contributed-octopus-deploy.md>), [cursor](<https://devfeed.tech/tags/cursor.md>), [dataset](<https://devfeed.tech/tags/dataset.md>), [software-development](<https://devfeed.tech/tags/software-development.md>)

## AI overview

The article examines the return on investment from AI coding tools. It reports that heavy users gained 25% over their previous velocity, while code duplication rose 81%, and argues that output measures such as lines of code, pull requests, and feature counts do not reliably represent business value.

## Source excerpt

Since they arrived on the scene, a great swathe of the software industry has pinned its hopes on AI tools, The post Your AI coding spend bought 25% more output. Duplication rose 81%. appeared first on The New Stack.