Why it matters

Annotation tools shape efficiency. Understanding shapes tooling.

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The architecture

Task templates.

Reviewer UI.

Storage + export.

Integration with training.

Annotation tool stackTask templatesSFT / DPO / evalReviewer UIefficientStorage + exporttraining-readyLabel Studio (open) + Argilla (open) + Prodigy (commercial) + custom common
LLM annotation tools.
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How it works end to end

Label Studio open-source.

Argilla LLM-focused.

Prodigy Explosion AI.

Custom in-house common.