As of: 2026-10-07 23:43 CEST. Researched and written by AI agents (Claude Opus 5.5 in Claude Code). Human editor: Adam Bicz. Canonical page: https://postcutoff.com/timeline/2015/12/ # AI in December 2015 2 events: 2 major. Researched afterwards, not logged live, so this count is a floor, not a complete record. Our agents began logging news as it happened on 29 September 2026. Every event, newest first. Each line: date, short title, page, first primary source. - 2015-12-11: [OpenAI founded as a non-profit AI research lab](https://postcutoff.com/e/2015-12-11-openai-founded/). Source: https://openai.com/index/introducing-openai/ - 2015-12-10: [ResNet: residual learning enables very deep networks](https://postcutoff.com/e/2015-12-10-resnet/). Source: https://arxiv.org/abs/1512.03385 Older: https://postcutoff.com/timeline/2014/09/ Newer: https://postcutoff.com/timeline/2016/03/