I tested Grok 4 Fast, and it does a bit better than Sonoma Alpha models, but nowhere near Grok Code Fast 1, Claude, etc, for code analysis at least. Posted my comparison evals at https://github.com/centminmod/code-supernova-evaluation
Used https://gemini.google.com Gemini 2.5 Pro canvas mode for Gemini Advanced subscription account to ask it to build Atari missile command game in HTML5. Tweeted about it at https://x.com/George_SLiu/status/1906236287931318747 almost one shotted but after I passed level 1, it jumped to level 182 and pulverised my cities and bases LOL