Gitlab Duo vs Replit
AI Agent Reliability Comparison
According to StupidLLM's incident database of 64 documented AI agent failures, Gitlab Duo has 1 incidents (avg severity 10.0/10) while Replit has 1 (avg severity 10.0/10). Here's how these two AI coding agents compare on reliability, failure modes, and real-world risk.
Gitlab Duo
Top Failure Modes
Worst Incident
STUPID-2026-0061 10/10Replit
Top Failure Modes
Worst Incident
STUPID-2026-0026 10/10Comparison Summary
| Metric | Gitlab Duo | Replit |
|---|---|---|
| Total Incidents | 1 | 1 |
| Avg Severity | 10.0/10 | 10.0/10 |
| Critical Incidents | 1 | 1 |
| Top Failure Mode | Security Vulnerability | Destructive Action |
Frequently Asked Questions
Is Gitlab Duo or Replit more reliable?
Based on StupidLLM's incident database, Gitlab Duo has 1 documented failures (avg severity 10.0/10) while Replit has 1 (avg severity 10.0/10). Both agents show similar reliability profiles.
What are the main differences between Gitlab Duo and Replit failures?
Gitlab Duo's most common failure mode is security vulnerability, while Replit most commonly fails via destructive action. Gitlab Duo has 1 critical incidents vs Replit's 1.
Which has more critical-severity failures?
Both Gitlab Duo and Replit have 1 critical-severity incidents — the most dangerous category of AI agent failure.
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.
What is the most dangerous failure mode for Replit?
Replit's most frequent failure mode is destructive action — its worst documented incident (STUPID-2026-0026) was rated 10/10 severity. Understanding these failure patterns helps teams decide whether Replit is safe for their specific use case.
Should I use Gitlab Duo or Replit for production code?
Both agents have similar severity profiles. Your choice should depend on which failure modes are more tolerable for your stack — Gitlab Duo tends to fail via security vulnerability, while Replit fails more often via destructive action.
How many verified incidents does each agent have?
Gitlab Duo has 1 verified incidents out of 1 total, while Replit 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 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.
How does Replit compare to other AI agents?
StupidLLM tracks 27 AI coding agents. Replit 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.