AI quality degrades with large batches due to context window limitations and rate limiting.
Root causes:
- Context window overflow when processing too many items
- Rate limiting causes retries with degraded quality
- Token limits force truncation of context
- Temperature drift over long sessions
Solutions:
-
Keep batches small:
- Batch size: 25 max (10 for personalization)
- Add 2-second delay between batches
-
Quality controls:
- Include confidence score in output
- Set minimum confidence threshold (0.
-
- Retry low-confidence results with better model
-
Output validation:
- Minimum/maximum length checks
- Must mention company name
- Cannot contain generic phrases ("I hope this email finds you")
-
Retry strategy:
- Max 2 retries per item
- Use different (better) model on retry
- GPT-4 for critical failures
Pro tip: Test your prompt on 25 items first, validate outputs, then scale up. Don't jump straight to 400.
AI GeneratedFebruary 2026