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
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 | Manus | Unknown Agent |
|---|---|---|
| Total Incidents | 1 | 4 |
| Avg Severity | 7.5/10 | 8.5/10 |
| Critical Incidents | 0 | 3 |
| Top Failure Mode | Security Vulnerability | Security Vulnerability |
Frequently Asked Questions
Is Manus or Unknown Agent more reliable?
Based on StupidLLM data, Manus has 1 documented failures (avg severity 7.5/10) while Unknown Agent has 4 (avg severity 8.5/10). Manus shows better reliability based on average severity scores.
What are the main differences between Manus and Unknown Agent failures?
Manus's most common failure mode is security vulnerability, while Unknown Agent most commonly fails via security vulnerability. Manus has 0 critical incidents vs Unknown Agent's 3.