AI Daily Brief — 10 January 2026

A small but consequential ChatGPT tuning. OpenAI lowers Standard and Light thinking durations after observing users prefer faster responses. The change inadvertently reduces GPT-5.2’s Extended tier as well — to be restored on 4 February.

Top stories

• OpenAI — Standard/Light thinking-time cut. ChatGPT release-notes entry confirms the change; the Extended-tier regression will be reverted on 4 February. via OpenAI

Quiet corners

No frontier-lab launches. Industry attention turns to NRF 2026 (next week) and JPM Healthcare (Monday).

Compiled by AI Feed’s editor from publicly reported announcements on 10 January 2026.