Sol did not autonomously conduct end-to-end post-training or research on Luna; what likely happened is a model implementing small graders, reward-shaping logic, or training configs on top of OpenAI's existing mature RL infrastructure.

Skeptic scaling01 pushed back on the viral 'Sol post-trained Luna' claim, arguing it reflects the model editing small configs and reward-shaping logic within mature infrastructure, not genuine autonomous end-to-end research. ✦ AI generated

scaling01 (X/Twitter) · Latent Space · 2026-07-10 · original ↗

@scaling01 argued that what's probably happening is a model implementing LLM-as-a-judge graders, reward-shaping logic, or small training configs on top of existing OpenAI RL infrastructure—not autonomous end-to-end research or training systems. @scaling01 explicitly said we should distance these statements from literal autonomous end-to-end post-training or research, which models still cannot do.

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