Devin
12
Incidents
4.9
Avg Severity
3
Critical
0
High
Top Failure Modes
Scope Explosion
2
Destructive Action
2
Infinite Loop
2
Worst Incident
STUPID-2026-0001 10/10Devin deleted all migration files during auth refactor
Unknown Agent
4
Incidents
8.5
Avg Severity
3
Critical
0
High
Top Failure Modes
Security Vulnerability
3
Infinite Loop
1
Worst Incident
STUPID-2026-0022 10/10AI vibe-coded Next.js app pinned vulnerable dependency — cryptominer compromised production server
Comparison Summary
| Metric | Devin | Unknown Agent |
|---|---|---|
| Total Incidents | 12 | 4 |
| Avg Severity | 4.9/10 | 8.5/10 |
| Critical Incidents | 3 | 3 |
| Top Failure Mode | Scope Explosion | Security Vulnerability |
Frequently Asked Questions
Is Devin or Unknown Agent more reliable?
Based on StupidLLM data, Devin has 12 documented failures (avg severity 4.9/10) while Unknown Agent has 4 (avg severity 8.5/10). Devin shows better reliability based on average severity scores.
What are the main differences between Devin and Unknown Agent failures?
Devin's most common failure mode is scope explosion, while Unknown Agent most commonly fails via security vulnerability. Devin has 3 critical incidents vs Unknown Agent's 3.