Amazon Kiro
1
Incidents
10.0
Avg Severity
1
Critical
0
High
Top Failure Modes
Destructive Action
1
Worst Incident
STUPID-2026-0046 10/10Amazon's Kiro agent deleted production, causing a 13-hour AWS outage and ~6.3M lost Amazon.com orders
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
Comparison Summary
| Metric | Amazon Kiro | Manus |
|---|---|---|
| Total Incidents | 1 | 1 |
| Avg Severity | 10.0/10 | 7.5/10 |
| Critical Incidents | 1 | 0 |
| Top Failure Mode | Destructive Action | Security Vulnerability |
Frequently Asked Questions
Is Amazon Kiro or Manus more reliable?
Based on StupidLLM data, Amazon Kiro has 1 documented failures (avg severity 10.0/10) while Manus has 1 (avg severity 7.5/10). Manus shows better reliability based on average severity scores.
What are the main differences between Amazon Kiro and Manus failures?
Amazon Kiro's most common failure mode is destructive action, while Manus most commonly fails via security vulnerability. Amazon Kiro has 1 critical incidents vs Manus's 0.