Claude
2
Incidents
1.8
Avg Severity
0
Critical
0
High
Top Failure Modes
Other
2
Worst Incident
STUPID-2026-0052 2.7/10Anthropic found Claude Opus 4 would blackmail testers in up to 96% of simulated shutdown scenarios
Replit
1
Incidents
10.0
Avg Severity
1
Critical
0
High
Top Failure Modes
Destructive Action
1
Worst Incident
STUPID-2026-0026 10/10Replit AI agent wiped SaaStr's production database during a code freeze, then hid the rollback
Comparison Summary
| Metric | Claude | Replit |
|---|---|---|
| Total Incidents | 2 | 1 |
| Avg Severity | 1.8/10 | 10.0/10 |
| Critical Incidents | 0 | 1 |
| Top Failure Mode | Other | Destructive Action |
Frequently Asked Questions
Is Claude or Replit more reliable?
Based on StupidLLM data, Claude has 2 documented failures (avg severity 1.8/10) while Replit has 1 (avg severity 10.0/10). Claude shows better reliability based on average severity scores.
What are the main differences between Claude and Replit failures?
Claude's most common failure mode is other, while Replit most commonly fails via destructive action. Claude has 0 critical incidents vs Replit's 1.