GRPO fine-tuning tutorial for extracting receipt data

Published on May 4, 2026, the tutorial explains GRPO and walks through fine-tuning LFM2.5-1.2B-Instruct with Unsloth to extract receipt data through OCR and organize it as JSON. The material also includes a Kaggle notebook. The available summary gives no metrics or evaluation results, so it does not establish how well the workflow performs.

The topic is relevant to teams studying structured extraction, but receipts can contain personal and financial data. To consult the material, check the tutorial and notebook associated with the original item, then review the code, dependencies, and results before applying the method. Use synthetic or properly protected receipts for testing; do not submit real data without authorization and suitable controls.