Aider vs Windsurf
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 Windsurf has 1 (avg severity 7.5/10).
Comparison Summary
| Metric | Aider | Windsurf |
|---|---|---|
| Total Incidents | 1 | 1 |
| Avg Severity | 6.3/10 | 7.5/10 |
| Critical | 0 | 0 |
| Verified | 1 | 1 |
| Top Failure Mode | Wrong File | Ignored Instructions |
Frequently Asked Questions
Is Aider or Windsurf more reliable?
Based on StupidLLM's incident database, Aider has 1 documented failures (avg severity 6.3/10) while Windsurf has 1 (avg severity 7.5/10). Aider shows better reliability.
What are the main differences between Aider and Windsurf failures?
Aider's most common failure mode is Wrong File, while Windsurf most commonly fails via Ignored Instructions. Aider has 0 critical incidents vs Windsurf's 0.
Which has more critical-severity failures?
Both Aider and Windsurf have 0 critical-severity incidents.
Should I use Aider or Windsurf for production code?
Aider has a lower average failure severity (6.3/10 vs 7.5/10), 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 1 total, while Windsurf has 1 verified out of 1. Verified incidents are confirmed against source evidence.