How to Detect Behavioural Regressions After a Model Update
A practical method for finding behaviour changes that uptime dashboards miss.
This draft examines LLM regression testing. It uses the Truvyx multi-agent evaluation glossary for consistent technical definitions and connects the topic to a repeatable system-level evaluation practice.
Invariants
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Trajectory comparison
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Reproduction
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Review
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Continue reading
Place this topic in the broader evaluation system with the related guides below.
- Regression Monitoring for AI: How to Catch Silent Model Degradations
- How to Implement CI/CD Gates for Multi-Agent Systems (With Python SDK Examples)
- Root Cause Analysis for AI Agents: Moving Beyond "It Hallucinated"
- What is Multi-Agent Evaluation? A Complete Guide for 2026
- The Definitive Glossary of Multi-Agent Evaluation Terms (2026 Edition)
- How to Build Production-Ready AI Agents: A Guide to Pre-Deployment Evaluation