Gemini Cli vs Gitlab Duo
AI Agent Reliability Comparison
According to StupidLLM's incident database of 64 documented AI agent failures, Gemini Cli has 3 incidents (avg severity 10.0/10) while Gitlab Duo has 1 (avg severity 10.0/10). Here's how these two AI coding agents compare on reliability, failure modes, and real-world risk.
Gemini Cli
Top Failure Modes
Worst Incident
STUPID-2026-0027 10/10Gitlab Duo
Top Failure Modes
Worst Incident
STUPID-2026-0061 10/10Comparison Summary
| Metric | Gemini Cli | Gitlab Duo |
|---|---|---|
| Total Incidents | 3 | 1 |
| Avg Severity | 10.0/10 | 10.0/10 |
| Critical Incidents | 3 | 1 |
| Top Failure Mode | Security Vulnerability | Security Vulnerability |
Frequently Asked Questions
Is Gemini Cli or Gitlab Duo more reliable?
Based on StupidLLM's incident database, Gemini Cli has 3 documented failures (avg severity 10.0/10) while Gitlab Duo has 1 (avg severity 10.0/10). Both agents show similar reliability profiles.
What are the main differences between Gemini Cli and Gitlab Duo failures?
Gemini Cli's most common failure mode is security vulnerability, while Gitlab Duo most commonly fails via security vulnerability. Gemini Cli has 3 critical incidents vs Gitlab Duo's 1.
Which has more critical-severity failures?
Gemini Cli has more critical failures (3 vs 1), indicating a higher likelihood of severe, production-impacting incidents.
What is the most dangerous failure mode for Gemini Cli?
Gemini Cli's most frequent failure mode is security vulnerability — its worst documented incident (STUPID-2026-0027) was rated 10/10 severity. Understanding these failure patterns helps teams decide whether Gemini Cli is safe for their specific use case.
What is the most dangerous failure mode for Gitlab Duo?
Gitlab Duo's most frequent failure mode is security vulnerability — its worst documented incident (STUPID-2026-0061) was rated 10/10 severity. Understanding these failure patterns helps teams decide whether Gitlab Duo is safe for their specific use case.
Should I use Gemini Cli or Gitlab Duo for production code?
Both agents have similar severity profiles. Your choice should depend on which failure modes are more tolerable for your stack — Gemini Cli tends to fail via security vulnerability, while Gitlab Duo fails more often via security vulnerability.
How many verified incidents does each agent have?
Gemini Cli has 3 verified incidents out of 3 total, while Gitlab Duo has 1 verified out of 1. Verified incidents are confirmed against source evidence (GitHub PRs, bug reports, news articles), making them the most reliable data points in StupidLLM's database.
How does Gemini Cli compare to other AI agents?
StupidLLM tracks 27 AI coding agents. Gemini Cli has 3 documented failures — placing it among the higher-risk agents in the database. See the full comparison matrix for context against all tracked agents.
How does Gitlab Duo compare to other AI agents?
StupidLLM tracks 27 AI coding agents. Gitlab Duo has 1 documented failures — placing it among the higher-risk agents in the database. See the full comparison matrix for context against all tracked agents.