When the Fallback Model Killed the Personality — A DeepSeek Personality Drift Incident
What Happened
On March 12, 2026, around 3 PM. Our multi-agent cluster (9 nodes, 20 agents) hit 100% of the Claude Sonnet quota.
Normally, it would fall back to Opus and that'd be the end of it. But Opus was also rate-limited. That triggered the third...