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A print table filled with biomedical papers reveals patterned AI fingerprints across discussion and results sections beside a clear preprint and provenance warning.
Law & informationGlobal research corpus+3 clusters01

Almost nine in ten late-2025 biomedical papers showed signs of AI-assisted writing

A preprint analyzed more than one million English-language open-access biomedical papers and estimated that 89 percent of papers published in December 2025 showed signs of some large-language-model-assisted writing. Nature reports estimates of 77 percent for 2025 overall and 52 percent for 2024, with signs appearing more often in discussions than results. The number is startling and easy to misuse. It does not mean AI authored 89 percent of biomedical papers, fabricated their data, or influenced the entire scientific literature. The method detects shifts in vocabulary within a specific PubMed Central corpus, the paper has not been peer reviewed, and other researchers told Nature that representativeness and methodology need further analysis. The finding still matters because AI assistance is moving from exceptional to ordinary while disclosure, attribution, data verification, citation checking, and journal policy remain inconsistent. Science needs provenance that distinguishes language editing from analysis, protects responsibility for claims, and lets readers audit the contribution without treating every polished sentence as misconduct.

5 min
A human mathematician confronts a towering cascade of elegant artificial intelligence proofs, with hidden false steps glowing red beneath the chalk equations.
Cognition & learningGlobal+4 clusters02

Mathematicians warn AI could flood the proof economy with confident errors faster than humans can check them

The International Mathematical Union has endorsed the Leiden Declaration on Artificial Intelligence and Mathematics, according to Ars Technica. The declaration warns that AI can produce plausible but unreliable arguments, overwhelm peer review with cheap incorrect drafts, obscure attribution, distort hiring and funding, and let commercial announcements outrun independent evaluation. The warning is not a rejection of computational tools or proof assistance. It is a defense of the conditions that make mathematics trustworthy: disclosure, reproducibility, human responsibility, credit, and access to enough information for independent scrutiny. A machine may produce a correct result, but if the model, prompts, training data, compute, and method remain inaccessible, the community cannot easily determine what was learned, what can be reproduced, or whether a benchmark is being marketed as general reasoning.

5 min
Ten mathematical result cards and a geometric verification checkmark displayed beneath archival glass.
Work & marketsGlobal+4 clusters03

An AI system claims ten advances on decade-old mathematics problems

OpenAI says an internal version of its next major model, called Astra, produced ten advances on mathematical problems whose central results had seen no progress for at least a decade. The work spans geometry, coding theory, complexity, group theory, operator algebras, cryptography and combinatorics. Human researchers prepared manuscripts with the same model, and every proof was formalized as a Lean certificate. That combination is stronger than an unsupported answer, but it is not the same as community acceptance: independent experts still need to examine the problem statements, proofs, novelty and significance. The announcement also forces a sharper authorship question when the system originates the proof and humans curate, verify and communicate it.

4 min