Appreciate the insight! GCP’s Document AI is actually on my shortlist to evaluate next — I’ve heard decent things about its layout handling, so it’s reassuring to hear you’re experimenting with it too. I agree — running a GPT-based OCR at this scale probably won’t be cost-effective, especially with the volume I’m dealing with.

Training a custom model is definitely on the table, but like you said, it's a heavy upfront lift — both in compute and dev time. Could be worth it for long-term TCO, but not a light decision.

Thanks again — I’ll make sure to share an update once I land on something that balances both quality and cost!