KhanLogics — InsightsEngineering notes from KhanLogics on extraction pipelines, state machines, multi-tenant isolation, and when custom software is the wrong answer.https://khanlogics.com/en-PK© 2026 KhanLogicsLLM invoice extraction vs. template OCR: cost, accuracy, and where each breakshttps://khanlogics.com/insights/llm-extraction-vs-template-ocr/https://khanlogics.com/insights/llm-extraction-vs-template-ocr/Template OCR is better than a language model on the vendors it was configured for. The argument for LLM extraction is entirely about the long tail — and about which failure mode you can detect.Wed, 19 Aug 2026 00:00:00 GMTAIdocument processingarchitecturehello@khanlogics.com (Muhammad Ali)Designing a membership state machine: freezes, grace periods and pro-rata billinghttps://khanlogics.com/insights/membership-state-machine/https://khanlogics.com/insights/membership-state-machine/Most gym software models membership status as a handful of boolean columns. Here is why that fails, and what an explicit transition table buys you at the front desk.Wed, 12 Aug 2026 00:00:00 GMTarchitecturebillingstate machineshello@khanlogics.com (Muhammad Ali)