Changelog
December 8, 2025
LLM Quality Inspector Agent (Chuck)
We’ve added Agentic Checks, powered by our new LLM inspector, Chuck.
Chuck identifies contradictions in your survey that typically only a human reviewer would catch. He does this by analyzing your survey structure and automatically grouping questions that should be evaluated together — including funnels, opposites, repeated brand sets, and behavioral sequences. For each group, Chuck:
- Provides a short explanation of why the questions were grouped
- Allows you to review or edit the grouping
- Check each respondent for contradictions or logically inconsistent answer patterns
This update adds deeper context checks with no manual configuration.

Updates to Fairgen Check
Based on Beta feedback, we’ve released several workflow and clarity improvements:
- XLSX downloads for quick offline analysis
- Manual check/uncheck controls for adjusting flagged respondent selections
- Improved live preview tables that highlight anomalies more clearly
- Shorter, clearer flag explanations to make decisions easier

REST API for Boost Generation
You can now run Fairgen Boost fully through our REST API.
The API supports:
- Dataset upload
- Structure upload
- Niche selection
- End-to-end Boost generation
This allows automated or large-scale workflows without using the UI.
Decipher XML Support
Fairgen now accepts XML survey structure uploads.
Our autodetection algorithm reads the XML file and automatically identifies derived variables/ recodings. This removes the need for manual recode setup and reduces opportunities for configuration errors.
Upload the XML and Fairgen handles structure interpretation automatically.
