I've found a better way of working: I use "5.6 sol ultra-high reasoning" only during planning, and use "5.6 Terra ultra-high reasoning" for regular work. I discuss and outline the architecture and workflow with 5.6 sol, and save the discussion results directly as a markdown file. Then I open 5.6 terra and ask it to follow that markdown to complete the coding and testing tasks specifically. If it's a long-term development project, you don't really need to set the speed to 1.5x acceleration. Because setting it to 1.5x acceleration will exhaust the 5-hour quota even for 5.6 terra. If the quota runs out and you're not going to immediately pull out a magic card to pay for more quota, but just wait idly, then it's pointless. Instead, it's better to set it to normal speed and let 5.6 Terra output steadily and continuously. After using it continuously for over 24 hours, I'm quite sure that with ultra-high reasoning enabled, 5.6 Terra's performance is significantly better than the previous generation's chatGPT 5.5. As for the previous generation GPT 5.5, I actually don't think it has any issues for work anymore; frankly speaking, it's already sufficient. For me, the significance of 5.6 is mainly during research and discussions; it's a more intelligent collaborator, and its spoken Chinese expression has also improved somewhat. In pure scientific discussions, it's a more reliable partner than 5.5.