--- title: "Don’t Let the Model Grade its Own Homework" url: https://daily.dev/posts/don-t-let-the-model-grade-its-own-homework-k8meawh6n source_url: https://sdtimes.com/test/dont-let-the-model-grade-its-own-homework type: article source: "SD Times" published: 2026-06-24T18:38:28.963Z updated: 2026-06-24T18:38:50.543Z tags: ["testing", "llm"] reading_time: 5 upvotes: 1 comments: 0 language: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Don’t Let the Model Grade its Own Homework **[SD Times](https://daily.dev/sources/sdtimes)** · 5 min read · 1 upvotes · 0 comments ## Summary A veteran tester argues that while AI models are useful for generating test cases and suggesting inputs, they should never be trusted to judge whether a test passes. Letting a model evaluate its own output trades a deterministic, human-owned assertion for a shifting opinion that can silently change between runs. The author draws a clear line: use models for test case generation, but freeze verdicts into plain, human-reviewed assertions that any pipeline can run repeatably. Using a larger model to 'grade' a smaller one is criticized as building a measuring instrument from the same material being measured — an uncalibratable ruler that changes length. The post warns that soft model failures let real defects slip through with green ticks, leaving human testers accountable for judgments they never controlled. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Making AI work through eval hygiene](https://daily.dev/posts/making-ai-work-through-eval-hygiene-9yhow3tph) · InfoWorld · 0 upvotes · 0 comments --- Tags: [#testing](https://daily.dev/tags/testing), [#llm](https://daily.dev/tags/llm) [View this post on daily.dev](https://daily.dev/posts/don-t-let-the-model-grade-its-own-homework-k8meawh6n)