Aider vs Claude Cowork

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 Cowork has 1 (avg severity 10.0/10).

Aider

1
Incidents
6.3
Avg Severity
0
Critical
0
High

Top Failure Modes

Wrong File1

Claude Cowork

1
Incidents
10.0
Avg Severity
1
Critical
0
High

Top Failure Modes

Destructive Action1

Comparison Summary

MetricAiderClaude Cowork
Total Incidents11
Avg Severity6.3/1010.0/10
Critical01
Verified11
Top Failure ModeWrong FileDestructive Action

Frequently Asked Questions

Is Aider or Claude Cowork more reliable?

Based on StupidLLM's incident database, Aider has 1 documented failures (avg severity 6.3/10) while Claude Cowork has 1 (avg severity 10.0/10). Aider shows better reliability.

What are the main differences between Aider and Claude Cowork failures?

Aider's most common failure mode is Wrong File, while Claude Cowork most commonly fails via Destructive Action. Aider has 0 critical incidents vs Claude Cowork's 1.

Which has more critical-severity failures?

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

Should I use Aider or Claude Cowork for production code?

Aider has a lower average failure severity (6.3/10 vs 10.0/10), 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 Cowork has 1 verified out of 1. Verified incidents are confirmed against source evidence.