Aider vs Claude Code
AI Agent Reliability Comparison
According to StupidLLM's incident database of 64 documented AI agent failures, Aider has 1 incidents (avg severity 6.3/10) while Claude Code has 8 (avg severity 6.4/10).
Claude Code
Top Failure Modes
Comparison Summary
| Metric | Aider | Claude Code |
|---|---|---|
| Total Incidents | 1 | 8 |
| Avg Severity | 6.3/10 | 6.4/10 |
| Critical | 0 | 3 |
| Verified | 1 | 8 |
| Top Failure Mode | Wrong File | Destructive Action |
Frequently Asked Questions
Is Aider or Claude Code more reliable?
Based on StupidLLM's incident database, Aider has 1 documented failures (avg severity 6.3/10) while Claude Code has 8 (avg severity 6.4/10). Aider shows better reliability.
What are the main differences between Aider and Claude Code failures?
Aider's most common failure mode is Wrong File, while Claude Code most commonly fails via Destructive Action. Aider has 0 critical incidents vs Claude Code's 3.
Which has more critical-severity failures?
Claude Code has more critical failures (3 vs 0), indicating a higher likelihood of severe, production-impacting incidents.
Should I use Aider or Claude Code for production code?
Aider has a lower average failure severity (6.3/10 vs 6.4/10), 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 1 total, while Claude Code has 8 verified out of 8. Verified incidents are confirmed against source evidence.