Grok 4.5 is very good and an improvement over previous iterations but lacks style and shies away from critique or critical thinking. Very similar to previous Grok versions in it's ability to avoid difficult tasks or truly understanding or caring about what isn't directly stated.
I have a feeling prompt writing will have enormous impact on grok, above and beyond other models, and will require special instructions for reasoning, decision making, and given harness to maximize effect. But I do think it could give Fable a run for it's money with time.
Now that Grok 4.5 is out, here are some of my workflows which I use daily
1. "use as many subagents and tokens as you need"
I end my prompts with the above to tell grok to spin up multiple subagents at the same time to divide and conquer on a hard problem. Grok is smart enough to realize when a subagent needs its own worktree and if it should inherit context from the main agent.
Now that Grok 4.5 is out, here are some of my workflows which I use daily
1. "use as many subagents and tokens as you need"
I end my prompts with the above to tell grok to spin up multiple subagents at the same time to divide and conquer on a hard problem. Grok is smart enough to realize when a subagent needs its own worktree and if it should inherit context from the main agent.
Seeing strong instruction following. Seems to be very efficient about tool call and token use. Still seems to be adversed to churning on long tasks even if well defined. Testing out the /loop skill to see how that does.
Grok 4.5 looking pretty solid so far. Throwing some intense tasks at it today, will report on outcomes, but already looking like xAI is going to catch up quite soon, and may have just done so.