September 23, 2026

A thin day for AI in this edition, with two stories. An arXiv paper found matching scores but different decisions when Jev and language models were tested on legal documents, alongside a community test on 770 AITA posts and more Jev tooling on GitHub. Separately, a menu-bar tool for running coding agents on other providers' models appeared as practitioners discussed splitting work across models. This edition covers items published before 22:00 UTC on 23 September; later items, including the OpenAI and Anthropic CEOs' UN appeal and the Mercury 2.5 speed figure, are in the 24 September edition. Other collected items lacked a second independent source.

An FDA advisory panel endorsed Grail's Galleri multi-cancer blood test, moving the reimbursement question closer to an FDA decision. New papers probed the stability, bias and reproducibility of clinical LLMs and how AI changes physicians' work, registry updates showed sponsors from Jiangsu Aosaikang to Janssen and BioNTech across RAS inhibition and other cancers, and investors showed renewed interest in osteoporosis treatments. bioRxiv and medRxiv both returned invalid JSON, so this edition draws on PubMed, ClinicalTrials.gov, STAT, MarketWatch, ScienceDaily and arXiv.

Iran's president told Trump at the UN that Iran will never 'bend the knee' as US aviation sanctions disrupted travel. Ethiopia and Tigrayan forces accused each other of new offensives, experts warned the UN faces a crisis as major powers act unilaterally, Poland accused a Russian helicopter of breaching its airspace amid doubts about Article 5 in Slovakia, and a $2.45bn Gaza reconstruction plan was unveiled. Xi Jinping's arrival in Washington came after 22:00 UTC and is in the 24 September edition. GDELT failed to fetch, ISW returned HTTP 403, Polymarket returned HTTP 451 and ReliefWeb was empty, so coverage relies on BBC, Al Jazeera, the Guardian, DW and CNBC wire feeds.

A slightly thinner Markets edition, with four stories. The 10-year Treasury yield hit a 19-year high after a hot inflation reading, with markets pricing the next Fed hike in October. The oil industry warned a diesel export ban would raise fuel prices, MarketWatch reported fewer stocks are carrying the market than at any time since the dot-com peak as SoftBank raised $11.1 billion in bonds for its OpenAI push, and McDonald's moved into advertising. The US-China truce extension and Meta's Muse hardware were reported after 22:00 UTC and are in the 24 September edition. SEC EDGAR returned HTTP 403, market data returned 404, Polymarket returned 451 and FRED was empty without a key.