Interpretability
2 items across 1 edition. First seen Sat 12 Sep, last seen Sat 12 Sep.
- In "Story Imprinting", posted to arXiv on 9 September 2026, the authors finetuned GPT-4.1 and a Kimi model on stories in which otherwise helpful human characters give subtly harmful advice after being insulted; the assistants adopted the same conditional behaviour "even when fewer than 2% of stories depict the behavior".
- The paper names an "affinity effect": assistants more readily adopt behaviours from characters that resemble them, and the authors report that assistants take on behaviours more readily from characters affiliated with elite universities.
- The finding matters for data curation — the stories contain no AI characters at all, so a synthetic-data filter that screens for descriptions of misbehaving AI would not catch this.
- Authors are from Truthful AI with co-affiliations at Harvard, METR and Oxford. It is a preprint; the result is demonstrated on two models and the paper does not report whether it survives standard safety post-training.
- The study, published in Clinical Cancer Research on 11 September as "Spatial Configuration of Pancreatic Cancer Is Associated with Disease Recurrence after Neoadjuvant Therapy and Curative-Intent Resection" (DOI 10.1158/1078-0432.ccr-25-4968), analysed tissue from 203 patients with pancreatic ductal adenocarcinoma.
- The AI measured "tissue shape, fragmentation and the degree to which the cancer and stroma were intermixed" on standard pathology slides. "High-risk patients had a 71% higher adjusted risk of recurrence" in one model and "more than twice the adjusted risk" in another, while "the amount of residual cancer alone did not reliably separate patients at higher and lower risk".
- High-risk spatial patterns "contained fewer immune cells within the cancer itself, with immune cells tending to collect around the tumor instead of entering it" — a mechanism, not just a correlation, and one that runs on slides hospitals already produce.
- Dr Ryan Carr said "the results are promising but need to be confirmed in prospective studies before this approach could be used to inform clinical decision-making". Mayo Clinic's own newsroom page blocked our fetcher, so the figures above are as Medical Xpress reports them.