Can you elaborate a little more on your setup? Are you manually copyong and pasting code from one LLM to another, or do you have some automated workflow for this?
I have been doing this with claude code and openai codex and/or cline. One of the three takes the first pass (usually claude code, sometimes codex), then I will have cline / gemini 2.5 do a "code review" and offer suggestions for fixes before it applies them.