Is Aider or Claude more reliable?

Based on StupidLLM's incident database, Aider has 4 documented failures (avg severity 4.5/10) while Claude has 3 (avg severity 3.6/10). Claude shows better reliability.

What are the main differences between Aider and Claude failures?

Aider's most common failure mode is Logic Error, while Claude most commonly fails via Other. Aider has 0 critical incidents vs Claude's 0.

Which has more critical-severity failures?

Both Aider and Claude have 0 critical-severity incidents.

Should I use Aider or Claude for production code?

Claude has a lower average failure severity (3.6/10 vs 4.5/10), 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?

Aider has 1 verified incidents out of 4 total, while Claude has 3 verified out of 3. Verified incidents are confirmed against source evidence.

Head to head

Aider vs Claude

Comparing 4 documented Aider incidents against 3 for Claude.

Full Aiderreport →Full Claudereport →

Verdict

Claude has the lower average failure severity (3.6/10 vs 4.5/10), making it the statistically safer choice of the two — though both agents have documented critical incidents.