We have been doing various updates which improve summaries, and some updates have been pushed. Hallucinations will still occur, so this is an incremental improvement. Here is what I got for this same search, though some of the top 8 results are different so not possible to say what the difference should be attributed too.
We have added the option to specify the LLM temperature (the default of 0.5 is used in the image above); for details of how to use see: Mojeek Search Summaries - #4 by Colin
Below is the Summary for the exa,mple above, with temperature=0.0.
search?q=doraemon+thailand+rain&fmt=summary&kaltem=0
