# Your invoices don't need to leave the building > Source: > Published: 2026-10-21 00:00:00+00:00 [← Back to blog](https://www.nobodywho.ai/posts/) # Your invoices don't need to leave the building For a non-technical audience, it's hard to grasp the value of open models. Or should we say private models? The best way of demonstrating value is to start with a very practical use case. That's what we presented on one of our latest demos. Extracting structured information from invoices. That's a problem a lot of companies have - right? For this quick demo we went with a super straightforward task. [5 invoices](https://huggingface.co/datasets/mathieu1256/FATURA2-invoices), and a single goal: Extract structured information from them. We put [Qwen 3.5 0.8B](https://huggingface.co/NobodyWho/Qwen_Qwen3.5-0.8B-GGUF) vs. Anthropic's [Haiku](https://www.anthropic.com/claude/haiku) model. The results are surprising. Not only is the local model 3x faster on average. It also costs a total of 0 EUR. All while keeping your data 100% private. And everything is powered by [NobodyWho](https://github.com/nobodywho-ooo/nobodywho). If you want to run the demo yourself, it's just a couple of commands, and the code is [right here](https://github.com/nobodywho-ooo/nobodywho-invoice-demo). Everything NobodyWho does is open-source, please leave [a star on GitHub](https://github.com/nobodywho-ooo/nobodywho) to support us ❤️ Get new posts in your feed reader: [subscribe via RSS](https://www.nobodywho.ai/feed.xml).