13B model trained only on pre-1931 text shows personas emerge from training data era

sethlazar · x · 2026-10-13

New work by David Africa and Nick Levine runs persona experiments (emergent misalignment, subliminal learning, utility engineering, personality evals) on Talkie, a 13B model trained only on English text from before 1931, benchmarked against an architecture-identical modern twin and Llama-3.1-8B.

Findings: Talkie generalizes maliciously — fine-tuning on dark maxims or malicious etiquette yields broadly misaligned answers; emergent misalignment works for narrow datasets like harsh Bible verses or quack medicine; the flavor of misalignment is era-shaped (Talkie invites Herod, Nero, and Robespierre to dinner while its twin invites Hitler, Dahmer, and Saddam); and fine-tuning on consoling Bible verses makes models slightly less misaligned.

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