Github Copilot
4
Incidents
10.0
Avg Severity
4
Critical
0
High
Top Failure Modes
Security Vulnerability
4
Worst Incident
STUPID-2026-0004 10/10Copilot autocompleted AWS credentials into public repository
Replit
1
Incidents
10.0
Avg Severity
1
Critical
0
High
Top Failure Modes
Destructive Action
1
Worst Incident
STUPID-2026-0026 10/10Replit AI agent wiped SaaStr's production database during a code freeze, then hid the rollback
Comparison Summary
| Metric | Github Copilot | Replit |
|---|---|---|
| Total Incidents | 4 | 1 |
| Avg Severity | 10.0/10 | 10.0/10 |
| Critical Incidents | 4 | 1 |
| Top Failure Mode | Security Vulnerability | Destructive Action |
Frequently Asked Questions
Is Github Copilot or Replit more reliable?
Based on StupidLLM data, Github Copilot has 4 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 Github Copilot and Replit failures?
Github Copilot's most common failure mode is security vulnerability, while Replit most commonly fails via destructive action. Github Copilot has 4 critical incidents vs Replit's 1.