Is Claude or Cursor more reliable?

Based on StupidLLM's incident database, Claude has 3 documented failures (avg severity 3.6/10) while Cursor has 4 (avg severity 8.2/10). Claude shows better reliability.

What are the main differences between Claude and Cursor failures?

Claude's most common failure mode is Other, while Cursor most commonly fails via Security Vulnerability. Claude has 0 critical incidents vs Cursor's 3.

Which has more critical-severity failures?

Cursor has more critical failures (3 vs 0), indicating a higher likelihood of severe, production-impacting incidents.

Should I use Claude or Cursor for production code?

Claude has a lower average failure severity (3.6/10 vs 8.2/10), 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?

Claude has 3 verified incidents out of 3 total, while Cursor has 4 verified out of 4. Verified incidents are confirmed against source evidence.

Head to head

Claude vs Cursor

Comparing 3 documented Claude incidents against 4 for Cursor.

Full Claudereport →Full Cursorreport →

Verdict

Claude has the lower average failure severity (3.6/10 vs 8.2/10), making it the statistically safer choice of the two — though both agents have documented critical incidents.