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AI IntelligenceAug 21, 2026AI Intelligence

Article

How do you regression-test prompts when a model gets replaced?

A prompt engineer asks how teams regression-test prompts when providers swap models, citing Kimi K2.5 and Moonshot V1 being phased out after Kimi K3. Suggested checks include a golden set of prompts and tracking refusal rate, format drift, latency, and cost. A newer model can still break specific production formats.

Frontier EditorialAug 20, 2026Source: Reddit r/PromptEngineering

Source Brief

How do you regression-test prompts when a model gets replaced?: A prompt engineer asks how teams regression-test prompts when providers swap models, citing Kimi K2.5 and Moonshot V1 being phased out after Kimi K3. Suggested checks include a golden set of prompts and tracking refusal rate, format drift, latency, and cost. A newer model can still break specific production formats.

LLM Ops Kimi Regression Testing LLM Evaluation Prompt Engineering Read the issue

Source Brief

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