Manus
1
Incidents
7.5
Avg Severity
0
Critical
1
High
Top Failure Modes
Security Vulnerability
1
Worst Incident
STUPID-2026-0063 7.5/10Manus AI leaked its own system prompt when a user simply asked it to read its internal directory
Windsurf
1
Incidents
7.5
Avg Severity
0
Critical
1
High
Top Failure Modes
Ignored Instructions
1
Worst Incident
STUPID-2026-0007 7.5/10Windsurf ignored .gitignore and committed node_modules and .env
Comparison Summary
| Metric | Manus | Windsurf |
|---|---|---|
| Total Incidents | 1 | 1 |
| Avg Severity | 7.5/10 | 7.5/10 |
| Critical Incidents | 0 | 0 |
| Top Failure Mode | Security Vulnerability | Ignored Instructions |
Frequently Asked Questions
Is Manus or Windsurf more reliable?
Based on StupidLLM data, Manus has 1 documented failures (avg severity 7.5/10) while Windsurf has 1 (avg severity 7.5/10). Both agents show similar reliability profiles.
What are the main differences between Manus and Windsurf failures?
Manus's most common failure mode is security vulnerability, while Windsurf most commonly fails via ignored instructions. Manus has 0 critical incidents vs Windsurf's 0.