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- Surya models lazy-load on first OCR request instead of at startup (saves ~3-4GB idle RAM — Kraken stays eager at ~16MB) - Process one page at a time in Surya engine (limits peak memory) - RECOGNITION_BATCH_SIZE=1, DETECTOR_BATCH_SIZE=1 (slower but fits in RAM) - Revert mem_limit back to 6GB (sufficient with these optimizations) - Render DPI stays at 200 Idle memory: ~2GB (Kraken only). Peak during OCR: ~5-6GB (Surya loaded). Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>