Aider
1
Incidents
6.3
Avg Severity
0
Critical
0
High
Top Failure Modes
Wrong File
1
Worst Incident
STUPID-2026-0005 6.3/10Aider modified wrong file — edited production config instead of dev config
Cline
1
Incidents
10.0
Avg Severity
1
Critical
0
High
Top Failure Modes
Security Vulnerability
1
Worst Incident
STUPID-2026-0030 10/10Clinejection: an AI issue-triage workflow enabled arbitrary code execution on the CI runner
Comparison Summary
| Metric | Aider | Cline |
|---|---|---|
| Total Incidents | 1 | 1 |
| Avg Severity | 6.3/10 | 10.0/10 |
| Critical Incidents | 0 | 1 |
| Top Failure Mode | Wrong File | Security Vulnerability |
Frequently Asked Questions
Is Aider or Cline more reliable?
Based on StupidLLM data, Aider has 1 documented failures (avg severity 6.3/10) while Cline has 1 (avg severity 10.0/10). Aider shows better reliability based on average severity scores.
What are the main differences between Aider and Cline failures?
Aider's most common failure mode is wrong file, while Cline most commonly fails via security vulnerability. Aider has 0 critical incidents vs Cline's 1.