Compare equivalent inputs
Confirm that each search used the same file and that you did not accidentally compare a full photograph with a tight crop. Note account tier and any test-mode restrictions as well.
Sort by evidence type
- Separate exact copies from similar images.
- Group results that point to the same source.
- Open unique candidate pages.
- Record what each page actually establishes.
One engine might find a creator's portfolio while another finds a retailer's licensed copy. Both can be valid results even though their rankings differ. Conversely, a large group of similar thumbnails may all trace to one irrelevant source.
Write the combined finding
Summarise the strongest source-backed conclusion and the unresolved gaps. Do not average similarity scores from different providers; their scales need not mean the same thing. Keep your original question visible so the comparison does not expand into aimless searching.
Continue with how image search works.