If you don't have the solutions, how do you verify Claude's work?

Everything, except the bleeding edge and situations requiring the context window to be more than 60% filled, are elementary to Opus 5.5 . If you provide the questions completely, you can be very sure that Claude’s solutions will be correct. The world has changed; AI is reliable; we need to adapt.

According to current practices, you ask ChatGPT or DeepSeek to verify it.