Do different marketo ai have different limitations?i

I asked marketo ai to moniter surge in click rates in emails of dec 2025 and jan 2026 in 2 different instances of marketo as i work for 2 clients in one it gave a proper analysis of this but in another it said it can only give results of such data till sept 2025 not after that. Why so same marketo ai different behaviour.? I tested it 4 5 times by giving same prompts on both each time and result was same everytime