synthpad · compare · vs Substack drafts
SYNTHPAD for newsletter writers stitching drafts
Pin paragraphs from each LLM; the merge engine produces a clean markdown draft.
What SYNTHPAD does
Cork-board layout. Paste from any LLM and watch the provenance badge appear in under 200 ms. Yarn links related cards. Markdown export preserves the model and the time of paste in footnotes.
Where Substack drafts falls short
Substack drafts have no model awareness.
The comparison is candid: Substack drafts is the right tool for many jobs. The cork-board is the right tool when the job is paste-detect-pin-link across four LLMs.