Is Claude or GitHub Copilot more reliable?

Based on StupidLLM's incident database, Claude has 3 documented failures (avg severity 3.6/10) while GitHub Copilot has 6 (avg severity 7.8/10). Claude shows better reliability.

What are the main differences between Claude and GitHub Copilot failures?

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

Which has more critical-severity failures?

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

Should I use Claude or GitHub Copilot for production code?

Claude has a lower average failure severity (3.6/10 vs 7.8/10), 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 GitHub Copilot has 6 verified out of 6. Verified incidents are confirmed against source evidence.

Head to head

Claude vs GitHub Copilot

Comparing 3 documented Claude incidents against 6 for GitHub Copilot.

Full Claudereport →Full GitHub Copilotreport →

Verdict

Claude has the lower average failure severity (3.6/10 vs 7.8/10), making it the statistically safer choice of the two — though both agents have documented critical incidents.