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
Gemini Cli
3
Incidents
10.0
Avg Severity
3
Critical
0
High
Top Failure Modes
Security Vulnerability
1
Scope Explosion
1
Destructive Action
1
Worst Incident
STUPID-2026-0027 10/10Gemini CLI silently executed arbitrary code from an untrusted repo (CVE-2026-12537, CVSS 10.0)
Comparison Summary
| Metric | Amazon Kiro | Gemini Cli |
|---|---|---|
| Total Incidents | 1 | 3 |
| Avg Severity | 10.0/10 | 10.0/10 |
| Critical Incidents | 1 | 3 |
| Top Failure Mode | Destructive Action | Security Vulnerability |
Frequently Asked Questions
Is Amazon Kiro or Gemini Cli more reliable?
Based on StupidLLM data, Amazon Kiro has 1 documented failures (avg severity 10.0/10) while Gemini Cli has 3 (avg severity 10.0/10). Both agents show similar reliability profiles.
What are the main differences between Amazon Kiro and Gemini Cli failures?
Amazon Kiro's most common failure mode is destructive action, while Gemini Cli most commonly fails via security vulnerability. Amazon Kiro has 1 critical incidents vs Gemini Cli's 3.