It depends on the task, and prompting feels different.
I've found that sonnet is possibly better at starting things from scratch and frontend code, while Gemini has been able to one-shot difficult problems and fix bugs that sonnet has struggled with.
Switching between them is a frequent occurrence for me.
It might be relevant that I've completely stopped using Cursor in favor of other tools/agents.
I've also created a few "agents" to do specific tasks using Probe[0] as an MCP server, although I'm sure you could create a full-fledged agent with it if you wanted to.
I've found that sonnet is possibly better at starting things from scratch and frontend code, while Gemini has been able to one-shot difficult problems and fix bugs that sonnet has struggled with.
Switching between them is a frequent occurrence for me.
It might be relevant that I've completely stopped using Cursor in favor of other tools/agents.