Same prompt, two models, different outputs. No tooling was actually showing me where they diverged.
Built tokenflame that gives entropy heatmaps, tokenizer diffs, divergence markers, token-by-token replay. One command, one HTML file.
pip install tokenflame
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source & further reading
dev.to — original article
VLA or IL? A Controlled Dataset for Testing Whether Finetuning Turns Your VLA into a Fancy Imitation Learner
Fabric AI Functions Turn GenAI Into a Data Pipeline Step
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