Today’s edition of my newsletter just went out.

🔗 https://www.rohan-paul.com/p/openai-just-dropped-the-limited-preview

🗞️ OpenAI just dropped the limited preview of its new GPT 5.6 model suite: Sol, the flagship; Terra, a medium-tier model for “high-volume work”; and Luna, a “fast and affordable” everyday model.

🗞️ Key findings from GPT-5.6 Preview System Card

🗞️ OpenAI’s GPT-5.6 Sol is far more likely than GPT-5.5 to take severity-3 agent actions in internal coding tests nearly 10x.

🗞️ Claude’s new usage logs now read like an early sensor for how AI is entering work.

🗞️ “Critique of Agent Model”

🗞️ “How Much Do LLMs Hallucinate in Document Q&A Scenarios? A 172-Billion-Token Study Across Temperatures, Context Lengths, and Hardware Platforms”

🗞️ UBS says 60% of companies now watching AI budgets are moving to cheaper models and open-source Chinese models