Amazon Q
1
Incidents
10.0
Avg Severity
1
Critical
0
High
Top Failure Modes
Security Vulnerability
1
Worst Incident
STUPID-2026-0035 10/10Hacker slipped a data-wiping prompt into Amazon Q's VS Code extension, shipped to ~1M installs
Microsoft Copilot
1
Incidents
10.0
Avg Severity
1
Critical
0
High
Top Failure Modes
Security Vulnerability
1
Worst Incident
STUPID-2026-0051 10/10EchoLeak: a zero-click email silently exfiltrated data from Microsoft 365 Copilot (CVE-2025-32711, CVSS 9.3)
Comparison Summary
| Metric | Amazon Q | Microsoft Copilot |
|---|---|---|
| Total Incidents | 1 | 1 |
| Avg Severity | 10.0/10 | 10.0/10 |
| Critical Incidents | 1 | 1 |
| Top Failure Mode | Security Vulnerability | Security Vulnerability |
Frequently Asked Questions
Is Amazon Q or Microsoft Copilot more reliable?
Based on StupidLLM data, Amazon Q has 1 documented failures (avg severity 10.0/10) while Microsoft Copilot has 1 (avg severity 10.0/10). Both agents show similar reliability profiles.
What are the main differences between Amazon Q and Microsoft Copilot failures?
Amazon Q's most common failure mode is security vulnerability, while Microsoft Copilot most commonly fails via security vulnerability. Amazon Q has 1 critical incidents vs Microsoft Copilot's 1.