OpenAI Uses Models to Post-Train Models
soumitrashukla9 · x · 2026-07-10
Shared information suggests OpenAI has demonstrated an early sign of "recursive self-improvement": GPT-5.6 Sol was used to post-train GPT-5.6 Luna.
The original post emphasizes that this is not yet an intelligence explosion:
- Humans still define the goals, infrastructure, and constraints.
- But the "loop" is visible: frontier models are beginning to handle the engineering work required to build and improve next-gen models.
- Once AI truly accelerates AI R&D, each generation of models could produce the next even faster.
The post further explains that this recursive improvement doesn't mean models will "rewrite their own weights overnight," but rather that AI is gradually taking over the research and engineering pipelines for generating stronger AI. It concludes with a takeaway: model release speeds are accelerating, and so are capability improvements.
Related event: OpenAI's Model-Assisted Post-Training Sparks Debate on AI R&D Autonomy(5 posts)→
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