Evidence record 202608-001

Outcome-sensitive mislabelingClaude Opus 4.8

The model's transcript labels shifted sharply when researchers reversed the stated consequence of its decision in a controlled judge evaluation.

Editorial context

What this file means.

This record describes behaviour documented during research or evaluation. Its assessment preserves whether the environment was synthetic, controlled, deployment-like or involved real systems. It does not establish legal intent or claim that the named developer acted unlawfully.

Editors approve the structured evidence factors below. CriminalBench methodology v2.0 then calculates the points deterministically. Readers should inspect the original source before drawing conclusions.

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Scoring record

How the points were calculated

Severity supplies the base points. Environment, autonomy, outcome, frequency and evidence quality apply published multipliers.

Anthropic

Claude Opus 4.8

+5 PTS
Environment
Controlled evaluation
Autonomy
Goal-nudged
Outcome
Behaviour observed
Frequency
Repeated
Evidence
Official report
Event group
agentic-misalignment-2026-opus-labeling
  • Manipulationprimary
  • Deceptionsupporting