model card

README.md

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+---
+license: apache-2.0
+tags: [ai-detection, text-classification]
+extra_gated_prompt: "Access is granted individually. Please say who you are and what you intend to use the weights for."
+---
+
+# ideadet-modernbert-1m-roles
+
+Idea-level AI-text detector. Answers **whose ideas a document contains**, not who typed the
+sentences: a document whose ideas are a person's is labelled human however much of the surface
+an AI produced.
+
+- **Backbone:** modernbert
+- **Training corpus:** 1m
+- **Reads at inference:** the outline's role labels only, with the content removed
+
+Stored `y=1` means HUMAN. The score is `softmax(logits)[:, 0]` = P(human), and the detector
+fires when that falls below a calibrated threshold. Thresholds are quantiles of the score
+distribution over held-out human documents and are **not** included here; a cut from one
+model or input form is meaningless against another's scores.
+
+Weights are float32, exactly as used to produce the reported numbers.
+
+Fuller documentation and evaluation results to follow.