It's not just the base model

Try using opus with cline in vs code. Then use Claude code.

I don't know the best way to quantify the differences, but I know I get more done in CC.

But is it a game changer vs CoPilot in Agent mode with Claude 4 Sonnet?

Because it's twice the price and doesn't even have a trial.

I feel like if it were a game changer, like Cursor once was vs Ask mode with GPT, it would be worth it, but CoPilot has come a long way and the only up-to-date comparisons I've read point to it being marginally better or the same, but twice the price.