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AI Coding Assistants Compared: Which One Actually Saves You Time
Copilot, Cursor, and CodeWhisper all promise faster shipping. We benchmarked real pull requests to see which claims hold up.
Hamza Tariq· Contributor
June 8, 20266 min read
Every AI coding assistant claims to save developers hours each week. To find out if that's true, we tracked three engineers across two sprints, each using a different assistant on the same codebase.
Method
Each engineer worked on comparable tickets — similar complexity, similar scope — while we logged time from ticket assignment to merged pull request.
- Time to first working draft
- Number of review round-trips
- Bugs caught in code review vs. in production
The biggest time savings showed up not in writing new code, but in understanding unfamiliar parts of the codebase before making a change.
Hamza Tariq
Hamza is a backend engineer who writes about developer tooling.