Ships ChatGPT, the GPT-5 line and Codex. It enters the corpus with ChatGPT as the most downloaded iOS app. The recursive-self-improvement strand opens with its Codex babysitting its own training runs, followed by Altman confirming self-improving systems in production and by GPT-5.3-Codex, the model it described as instrumental in creating itself.
Organization
OpenAI
Frontier lab behind ChatGPT, the GPT-5 line and Codex; the source of the corpus's first recursive-self-improvement report and of its most explicit statements that self-improving systems are in production.
Sources
Attribution and reporting linked by this record; links do not imply independent verification.
- Welcome to December 11, 2025 (theinnermostloop.substack.com)
Development timeline
Newest reporting dates first. Reporting dates may differ from event dates.
Knowledge graphopen in browser →
Referenced by
- FrontierScience
- GDPval
- MentalHealthBench
- SWE-bench Verified
- Stargate Michigan
- Stargate UAE
- Jalapeño
- Mark Chen, Chief Research Officer at OpenAI
- Noam Brown, researcher at OpenAI
- Noam Shazeer, AI researcher at OpenAI
- Roon, OpenAI
- Sam Altman, chief executive of OpenAI
- Sarah Friar, chief financial officer at OpenAI
- Thibault Sottiaux, Codex engineering manager at OpenAI
- Astra for Law
- ChatGPT
- OpenAI Codex
- dots
- GPT-5.1-Codex-Max
- GPT-5.2
- GPT-5.2-Codex
- GPT-5.2 Pro
- GPT-5.2 Thinking
- GPT-5.3-Codex
- GPT-5.4 Pro
- GPT-5.5
- GPT-5.6
- GPT-5.6 Luna
- GPT-5.6 Sol
- GPT-5.6 Terra
- GPT-6
- GPT-6.1 Astra
- GPT-6.1 Sol
- GPT-6 Astra
- GPT-6 Luna
- GPT-6 Sol
- GPT Image 1.5
- GPT-Red
- GPT-Synopsys
- OpenAI in-house data agent
- Prism
- Sora
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