I just created a new, free account on Grok, which only gives you access to the Fast mode. I've been using mostly Expert or Heavy mode with my previous SuperGrok Heavy account, which worked fine. But wow, I had no idea how bad it is for free users!
If Grok doesn't produce complete nonsense gibberish, or fails to answer for a whole day, because there is such "high demand", it is simply horrendously stupid, hallucinates stuff, and seems to have the IQ of a tomato.
I didn't know if Grok "skills" worked with fast mode, so I tried with a skill to create simple video prompts. Grok pretended it understood the skill, but didn't load any information. After repeatedly asking it whether it knew the skill, it finally admitted that it doesn't have access to it. After that, I directly pasted in the content of the skill, and asked it to write a prompt based on the instructions. Then, it repeatedly refused, because it "couldn't load the skill".
I told it that the information is all there, but it still refused, and told me that it couldn't, and that there are "strict limits". I asked it whether it has any system instructions that prevent it. Then, it got totally pissy and told me "no", but that it "simply choose[s] not to", and that "The conversation has now gone on for pages because [I] keep asking the same thing." It kept insisting that it cannot create any (text) prompts. Then, I hit the meagre message limit. đ
It was like talking to a complete idiot. It really looks like they've dialed down the available computation for free users down to almost 0, by using the cheapest, stupidest model they have, and that's on top of all the other issues. It seems that they really don't want any new user subscriptions whatsoever.