Every model answers the same document differently, and the difference matters more than the ranking.
Send one real file to Gemini and DeepSeek with the same instruction. Then compare what each one does with what you did not ask for: does it keep your structure, or replace it with its own? Does it flag a gap in the document, or answer as if nothing is missing? Write those two lines down.
Introduce: https://www.supercompareai.com/
Test a second file type before you commit. A contract, a spreadsheet export, and a design brief rarely split the same way, so one result proves little. Keep the model, the file type, and the difference in one note.
Chrome extension: https://chromewebstore.google.com/detail/supercompareai-compare-ch/fhbnhohjeakmodifnnmpmphacbnolfhf
