23 September 2026

OpenAI released GPT-6 Sol and GPT-6 Luna on 22 September, at half the price of the 5.6 series. API prices are $2/$10 per million input/output tokens for Sol and $0.10/$0.50 for Luna; both are in ChatGPT, Codex and the API.

TechCrunch · techcrunch.com

The UN Security Council holds a session on AI and international security on 23 September, convened by France. Sam Altman, Dario Amodei, Yoshua Bengio and Hugging Face's Clément Delangue are due to brief the council; DeepSeek and Moonshot were invited to make statements.

The Next Web · thenextweb.com

Novartis licensed a preclinical radioligand therapy from Suzhou-based BoomRay Pharmaceuticals in a deal worth up to $900 million including milestones. The indication was not disclosed.

BioSpace · biospace.com

PTC Therapeutics completed its purchase of ST-920, Sangamo's one-time AAV gene therapy for Fabry disease, for $111 million upfront plus up to $100 million in milestones. A rolling FDA filing for accelerated approval is due to finish in Q4 2026.

PTC Therapeutics · ir.ptcbio.com

Viking Therapeutics reported that patients who switched from weekly VK2735 to every-other-week dosing kept up to 97% of their weight loss over three months, and up to 90% on monthly dosing. Weekly dosing gave 16-19% placebo-adjusted weight loss at week 21.

Endpoints News · endpoints.news

Alphabet's robotics unit Intrinsic released Intrinsic Core under the Apache 2.0 licence at ROSCon 2026 in Toronto: ROS-compatible real-time control, pose estimation, motion and grasp planning, simulation and camera calibration.

SiliconANGLE · siliconangle.com

At a Democratic forum on 22 September, ranking members of congressional oversight committees heard testimony from families and representatives of five people fatally shot by ICE officers, who asked for criminal prosecutions.

Maine Public · mainepublic.org

US secondary sanctions aimed at stopping all Iranian airlines took effect on 23 September, covering foreign firms that fuel, land or sell tickets for Iranian carriers. Iran cancelled flights to Baghdad and Muscat.

Al Jazeera · aljazeera.com

Mohsen Rezaei, secretary of Iran's Supreme National Security Council, said Iran would stop airports in neighbouring countries from functioning if they block Iranian flights under the US sanctions.

U.S. News & World Report · usnews.com

The general debate of the 81st UN General Assembly opened on 22 September with António Guterres, Assembly president Khalilur Rahman and Brazil's Lula as the first speakers. It runs until 28 September.

Al Jazeera · aljazeera.com