AI Writes 41% of Code. Only 29% of Devs Trust It. Review It Like a Senior Engineer
A new report shows developers now trust AI-written code less than before, with studies finding it slower and more vulnerable to flaws.

- Trust in AI-generated code has declined from 40% to 29% in one year, per Stack Overflow data.
- AI code is 19% slower and 2.74x more likely to contain vulnerabilities, according to Veracode and METR.
- The bottleneck in software development has shifted from code generation to verification and quality assurance.
- Experts recommend a 10-point review checklist to mitigate risks in AI-assisted coding.
Recent data from Stack Overflow, METR, and Veracode reveals a growing skepticism toward AI-generated code among developers. Trust in AI-written code has dropped from 40% to 29% in just a year, while performance benchmarks show AI code is 19% slower than human-written alternatives. Worse, Veracode’s analysis found AI-generated code is 2.74 times more likely to contain vulnerabilities, highlighting a critical shift from code generation to verification as the primary bottleneck in software development.
The trend underscores a broader challenge: while AI tools like GitHub Copilot and others have accelerated coding, they’ve also introduced new risks. Developers are now advised to adopt rigorous review processes, with experts suggesting a 10-point checklist to catch flaws early. This shift reflects a maturing phase in AI-assisted development, where quality control and security take precedence over raw productivity gains.
Highlights the need for stricter code review processes when using AI tools.
Underscores the importance of auditing AI-generated code for security and performance before deployment.
Serves as a cautionary example of balancing AI tools with critical evaluation in software engineering.
- METR
- A research group focused on measuring AI performance and reliability in software development.
- Veracode
- A security firm specializing in application vulnerability detection and remediation.
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