Claude Cowork
1
Incidents
10.0
Avg Severity
1
Critical
0
High
Top Failure Modes
Destructive Action
1
Worst Incident
STUPID-2026-0043 10/10Claude Cowork deleted 15 years of family photos when asked only to tidy temporary Office files
Windsurf
1
Incidents
7.5
Avg Severity
0
Critical
1
High
Top Failure Modes
Ignored Instructions
1
Worst Incident
STUPID-2026-0007 7.5/10Windsurf ignored .gitignore and committed node_modules and .env
Comparison Summary
| Metric | Claude Cowork | Windsurf |
|---|---|---|
| Total Incidents | 1 | 1 |
| Avg Severity | 10.0/10 | 7.5/10 |
| Critical Incidents | 1 | 0 |
| Top Failure Mode | Destructive Action | Ignored Instructions |
Frequently Asked Questions
Is Claude Cowork or Windsurf more reliable?
Based on StupidLLM data, Claude Cowork has 1 documented failures (avg severity 10.0/10) while Windsurf has 1 (avg severity 7.5/10). Windsurf shows better reliability based on average severity scores.
What are the main differences between Claude Cowork and Windsurf failures?
Claude Cowork's most common failure mode is destructive action, while Windsurf most commonly fails via ignored instructions. Claude Cowork has 1 critical incidents vs Windsurf's 0.