Migrate from Evaluations and Datasets

Move legacy Dataset, Evaluation, and Report workflows into Tables.

Legacy Evaluations, Reports, and Datasets remain available for existing projects. Use Tables for new workflows.

Tables bring legacy Dataset, Evaluation, and Report workflows into one place: rows, computed steps, runs, scoring, history, and analytics.

Convert a legacy view to a Table

When a legacy Dataset or Evaluation page shows a migration banner, click Convert to Table. PromptLayer creates the Table from the legacy object and opens it so you can review sheets, rows, columns, scoring, and run status before moving production workflows.

Use the conversion button first when it appears. Rebuild manually only when you are working from exports, logs, or a legacy workflow without the banner.

Concept mapping

Legacy concept	Table concept
Dataset group	Table
Dataset row	Table row
Dataset column	Text column
Dataset version	Sheet version
Evaluation pipeline	Sheet with computed columns
Evaluation step	Computed column
Report run	Recalculation operation
Report output	Computed cell output
Report score card	Sheet score configuration
Report history	History, versions, and score history

Migration checklist

1. Convert from the legacy page when the banner is available.
2. Review generated sheets, rows, columns, scoring, and run status.
3. For manual rebuilds, import rows from CSV or request history.
4. Recreate missing evaluation steps as computed columns.
5. Map sources, configure scoring, and rerun stale or pending cells.
6. Compare outputs, score, history, and analytics before moving automation to the Tables API.

Manual rebuild shortcuts

Use these paths when conversion is not available.

Legacy workflow	Table workflow
Dataset from CSV or JSON	Create a Table, click Upload, choose From computer, then add computed columns and scoring in the same sheet.
Dataset from request history	Create a Table, click Upload, choose From request history, select requests, then click Add to Sheet.
Evaluation pipeline	Put inputs in text columns, add one computed column for each evaluation step, map Prompt Template variables to source columns, run the computed columns, and configure scoring.
Report run	Run the Table, a computed column, or selected stale work. Inspect cells in place, then use Score, Analytics, and History to review results.

Automation mapping

Legacy automation	Tables API
Create Dataset Group	Create Table
Upload Dataset file	Create file import
Create Dataset from request logs	Create request-log import
Add Evaluation step	Create column
Run Report	Create operation
Poll Report status	Get operation
Read Report score	Get sheet score
Save checkpoint	Create sheet version

Recommended order

Migrate one workflow at a time. Review the generated Table before changing automation, confirm outputs and scores match the old workflow, then move automation to the Tables API. Keep the legacy workflow read-only until the Table is trusted.