Welcome to the latest issue of Engineering Enablement, a weekly newsletter sharing research and perspectives on developer productivity.
đ Next week, Abi and I are hosting a live discussion on how to run data-driven evaluations of AI engineering tools. Register to join.
For the second quarter in a row, DX data suggests that newer AI-native tools like Cursor and Claude Code outperform other AI coding assistants when measured by pull request merges per week.
Last week, DX published the AI-Assisted Engineering: Q4 2025 Impact Report, which shares AI usage and impact data from over 400 companies. One of the things we found is that when examining AI usage patterns by tool, developers who use Cursor and Claude Code have a higher weekly PR merge rate than those who use different tools, regardless of their frequency of AI usage.
I was looking into why this might be, so I dug into the other factors that influence PR throughput.
An organizationâs contextâthings like its tools, processes, and leadershipâhas a significant influence on the actual impact that AI tools can make. Itâs widely understood that bigger orgs are less efficient, while smaller and younger companies often operate with a faster rhythm of business. So what does that mean for AI tool performance?
Claude Code, Cursor, and GitHub Copilot are used by a higher proportion of smaller companies. Among the 200+ companies using Cursor in our dataset, 90% have fewer than 500 engineers. But it is worth noting that the remaining 10%âthe larger enterprisesâaccount for nearly half (46%) of all developers using Cursor.
The story is very different for Windsurf, which is taking a strong foothold in the enterprise. In our sample, nearly half of Windsurfâs end-user companies are large organizations, resulting in 65% more enterprise developers using Windsurf than Cursor. For Windsurf, this shows up as a lower PR throughput number. But this isnât because of tool capabilities; larger orgs are less efficient, so they are starting with a lower PR throughput number.
Iâm not completely surprised by how these adoption trends are taking shape. At the 2025 Enterprise Tech Leadership Summit in September, I noticed that Windsurf was popping frequently in my conversations with enterprise tech leaders. It makes sense; most of these conversations were with leaders who were early to the AI and got started with Codeium on-prem. Then, they looked toward Windsurf as an enterprise-ready agentic IDE to modernize their strategy. Our data largely supports my observation here, and this is a trend Iâll be keeping an eye on for the next few quarters.
Final thoughts
AI impact is influenced by existing organizational factors, and single metrics like PR throughout can only tell part of the story. Snapshots of industry trends like we shared in the AI-Assisted Engineering: Q4 2025 Impact Report can help contextualize your own performance, but at DX, we encourage you to measure comprehensively and continuously. Longitudinal data tells an important story of how your strategy is playing out over time. To add additional layers of insight, segmenting developers based on attributes â like seniority, tenure, tech stack, or even laptop age â enables you to perform cohort analysis at a level of granularity necessary to make meaningful decisions about your AI strategy.
While newer AI tools do show evidence of accelerating developers when it comes to PR merge frequency, there are many other factors to consider.
Note: Abi and I are doing a webinar on Nov 20 about running data-driven AI tool evaluations, and weâll share guidance on how to measure impact and score tools against a common set of criteria. Register to join.
Whoâs hiring right now
This weekâs featured DevProd job openings. See more open roles here.
American Express is hiring a Sr. Manager, Digital Product Management - DevProd | Hybrid - London UK
Capital One is hiring a Product Manager - Developer Experience | Plano TX; McLean VA; Richmond VA
Dropbox is hiring a Senior Infrastructure Software Engineer | Remote - United States
Reddit: Staff Software Engineer - Developer Experience | Remote - United States
Whatnot is hiring a Software Engineer - Platform | San Francisco, Los Angeles, Seattle, NYC
Thatâs it for this week. Thanks for reading.