AI Hallucinations & Verification
Hallucination detector lab — review 10 pieces of AI-generated code and identify which contain hallucinated functions, incorrect logic, or fabricated API references. Build your verification instincts through practice.
Hallucination Detector
Each snippet below was generated by an AI. Some use real, valid code. Others contain hallucinated functions, fabricated APIs, or incorrect logic. Can you spot the fakes?
Key insight: AI hallucinations are most dangerous when they look plausible. A fabricated function name that follows naming conventions, or a non-existent API endpoint with realistic parameters, can pass casual inspection. The antidote is systematic verification — not just reading the code, but checking every external reference against its official source.
Verification Checklist
Apply these 8 verification steps to any AI-generated code before trusting it. Click each step to mark it as part of your workflow. Build the habit of checking every item.