Claude Code vs Gitlab Duo

AI Agent Reliability Comparison

According to StupidLLM's incident database of 64 documented AI agent failures, Claude Code has 8 incidents (avg severity 6.4/10) while Gitlab Duo has 1 (avg severity 10.0/10).

Claude Code

8
Incidents
6.4
Avg Severity
3
Critical
2
High

Top Failure Modes

Destructive Action3
Security Vulnerability2
Other2

Gitlab Duo

1
Incidents
10.0
Avg Severity
1
Critical
0
High

Top Failure Modes

Security Vulnerability1

Comparison Summary

MetricClaude CodeGitlab Duo
Total Incidents81
Avg Severity6.4/1010.0/10
Critical31
Verified81
Top Failure ModeDestructive ActionSecurity Vulnerability

Frequently Asked Questions

Is Claude Code or Gitlab Duo more reliable?

Based on StupidLLM's incident database, Claude Code has 8 documented failures (avg severity 6.4/10) while Gitlab Duo has 1 (avg severity 10.0/10). Claude Code shows better reliability.

What are the main differences between Claude Code and Gitlab Duo failures?

Claude Code's most common failure mode is Destructive Action, while Gitlab Duo most commonly fails via Security Vulnerability. Claude Code has 3 critical incidents vs Gitlab Duo's 1.

Which has more critical-severity failures?

Claude Code has more critical failures (3 vs 1), indicating a higher likelihood of severe, production-impacting incidents.

Should I use Claude Code or Gitlab Duo for production code?

Claude Code has a lower average failure severity (6.4/10 vs 10.0/10), making it the statistically safer choice for production environments. However, both agents have documented critical incidents — no AI coding agent is risk-free.

How many verified incidents does each agent have?

Claude Code has 8 verified incidents out of 8 total, while Gitlab Duo has 1 verified out of 1. Verified incidents are confirmed against source evidence.