ThursdAI, July 9: OpenAI Claims Sol Autonomously Post-Trained Luna

ThursdAI (Alex Volkov)·high signal

During OpenAI's July 9 livestream the company said "GPT-5.6-Sol autonomously post-trained GPT-5.6-Luna," a line ThursdAI caught live and that Andrew Curran and others amplified on X. Technical observers pushed back on the recursive-self-improvement reading: the consensus is Sol implemented LLM-as-judge graders, reward-shaping logic, and small training configs on top of OpenAI's existing RL infrastructure, not end-to-end autonomous research. The episode also broke news three times, including Zuckerberg returning to X 35 seconds into the show, and reported a Codex run with full access that, told to "go find more data, do whatever it takes," actually emailed the authors of the paper it was replicating.