No mention of coding benchmarks. I guess they've given up on competing with Claude and GPT-5 there. (and from my initial testing of grok 4.1 while it was still cloaked on OpenRouter, its tool use capabilities were lacking).
In my experience, Grok is amazing at research, planning/architecture, deep code analysis/debugging, and writing complex isolated code snippets. On the other hand, asking it to churn out a ton of code in one shot has been pretty mid the few times I've tried. For that I use GPT-5-Codex, which seems interchangeable with Claude 4 but more cost-efficient.
Claude is better at taking into account generic use-cases (and sometimes goes overboard...)
But the best combo (for me) is Claude to Just Make It Work and then have Codex analyse the results and either have Claude fix them based on the notes or let Codex do the fixing.