Is Cline or Codex more reliable?

Based on StupidLLM's incident database, Cline has 5 documented failures (avg severity 5.5/10) while Codex has 3 (avg severity 5.8/10). Cline shows better reliability.

What are the main differences between Cline and Codex failures?

Cline's most common failure mode is Ignored Instructions, while Codex most commonly fails via Destructive Action. Cline has 1 critical incidents vs Codex's 0.

Which has more critical-severity failures?

Cline has more critical failures (1 vs 0), indicating a higher likelihood of severe, production-impacting incidents.

Should I use Cline or Codex for production code?

Cline has a lower average failure severity (5.5/10 vs 5.8/10), 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?

Cline has 5 verified incidents out of 5 total, while Codex has 2 verified out of 3. Verified incidents are confirmed against source evidence.

Head to head

Cline vs Codex

Comparing 5 documented Cline incidents against 3 for Codex.

Full Clinereport →Full Codexreport →

Verdict

Cline has the lower average failure severity (5.5/10 vs 5.8/10), making it the statistically safer choice of the two — though both agents have documented critical incidents.