How OpenAI Memory Shapes Answers & How to Prevent Drift
1. Semantic Vector Injection
ChatGPT does not actually "remember" across weights. Instead, when you send a prompt, OpenAI runs a semantic similarity match across your stored memory records and invisibly injects top matches into the system prompt context window.
2. The "Overfit" Persona Trap
Casual mentions like "I'm dabbling in Python" can permanently override your preferred senior architect persona. Conflicting items force the model to split the difference, often producing vague, patronizing, or overly verbose replies.
3. Regular Auditing & Pruning
Open ChatGPT > Settings > Personalization > Manage Memories once a month. Use this tool's export manifest to purge outdated roles, stale framework preferences, and contradictory stylistic directives.