Vellum 3.4.3 May 2026

: If you are using the book formatting software "Vellum" (rather than the AI platform), you simply click the Generate button in the toolbar to create EPUB or Kindle files.

: Go to the Evaluations tab in your Vellum workspace. Vellum 3.4.3

: You can build a Data Extraction Workflow to extract information from documents and output it in a structured format like JSON. : If you are using the book formatting

: You can access and preview historical reports to compare different runs. Other "Generation" Tasks in Vellum Vellum 3.4.3

: Once the evaluation is complete, Vellum generates a report showing metrics like accuracy, latency, and cost.