How to Work Effectively with GPT-5.6

OpenAI's new GPT-5.6 model is a notable, albeit incremental, improvement over its predecessor, demonstrating superior performance in tasks like code review. The model introduces three different sizes—Sol, Terra, and Luna—and features adjustable reasoning levels that directly impact response quality, speed, and usage consumption. A key strategy for effective use involves applying high reasoning for initial planning and then switching to a medium level for implementation to avoid excessive slowness and cost. While it excels at code reviews and browser automation, some find better results by using it in combination with other models for complex programming tasks.