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AI-Generated Text Detection on KatFish corpus 2025 (Phase 1)

96.67AccuracyGPT-5.2 Thinking
44.6758.1771.6785.17Jan 6, 2026

Evaluation results

MethodLinks
GPT-5.2 ThinkingEvaluator Category=LLMs, Mode=Zero-shot, Protocol=Blind classification2026.0196.67
Gemini 3 FlashEvaluator Category=LLMs, Mode=Zero-shot, Protocol=Blind classification2026.0196.67
LLMs Majority VoteEvaluator Category=LLMs, Aggregation=Majority Vote, Mode=Zero-shot2026.0196.67
Claude Sonnet 4.5Evaluator Category=LLMs, Mode=Zero-shot, Protocol=Blind classification2026.0190
Annotator 3Evaluator Category=Human, Decision Criteria=Intuition-driven, Protocol=Blind classification2026.0180
Human Majority VoteEvaluator Category=Human, Aggregation=Majority Vote, Decision Criteria=Intuition-driven2026.0160
Annotator 1Evaluator Category=Human, Decision Criteria=Intuition-driven, Protocol=Blind classification2026.0150
Annotator 2Evaluator Category=Human, Decision Criteria=Intuition-driven, Protocol=Blind classification2026.0146.67