Amazon Q vs Cursor

AI Agent Reliability Comparison

According to StupidLLM's incident database of 64 documented AI agent failures, Amazon Q has 1 incidents (avg severity 10.0/10) while Cursor has 5 (avg severity 6.1/10).

Amazon Q

1
Incidents
10.0
Avg Severity
1
Critical
0
High

Top Failure Modes

Security Vulnerability1

Cursor

5
Incidents
6.1
Avg Severity
2
Critical
0
High

Top Failure Modes

Infinite Loop1
Scope Explosion1
Destructive Action1

Comparison Summary

MetricAmazon QCursor
Total Incidents15
Avg Severity10.0/106.1/10
Critical12
Verified15
Top Failure ModeSecurity VulnerabilityInfinite Loop

Frequently Asked Questions

Is Amazon Q or Cursor more reliable?

Based on StupidLLM's incident database, Amazon Q has 1 documented failures (avg severity 10.0/10) while Cursor has 5 (avg severity 6.1/10). Cursor shows better reliability.

What are the main differences between Amazon Q and Cursor failures?

Amazon Q's most common failure mode is Security Vulnerability, while Cursor most commonly fails via Infinite Loop. Amazon Q has 1 critical incidents vs Cursor's 2.

Which has more critical-severity failures?

Cursor has more critical failures (2 vs 1), indicating a higher likelihood of severe, production-impacting incidents.

Should I use Amazon Q or Cursor for production code?

Cursor has a lower average failure severity (6.1/10 vs 10.0/10), making it the statistically safer choice for production environments. However, both agents have documented critical incidents — no AI coding agent is risk-free.

How many verified incidents does each agent have?

Amazon Q has 1 verified incidents out of 1 total, while Cursor has 5 verified out of 5. Verified incidents are confirmed against source evidence.