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Self-Publishing Manuscript Formatting & Book Production Tools · Vendor file

Vellum

vellum.ai

Your time is yours again. Vellum is a desktop AI assistant that understands your context, connects your tools, and acts on your behalf.

Active · verified August 2026

Categories Vellum serves

The B4 Index places Vellum in 2 categories. Each category page lays out the build-versus-buy considerations for that decision.

Self-Publishing Manuscript Formatting & Book Production Tools Primary One-time license (Mac), publicly posted
Low-Code / No-Code

Vellum compared

Vellum vs Atticus
The B4 Index scores every software category on two axes, strategic differentiation and AI feasibility, to classify it Build, Buy, Bridge, or Beware. Vendor facts here are independent of that call. See the full methodology.