An xAI version of the Grok large language model family.
Grok 4.5 is the science kid at lunch. It brings a calculator and a fresh meme. It may crack a joke too.
You meet it in chat, code, and search. Test it on your own task first.
LLM
Grok 4.5 is one product version of an LLM.
Frontier model
Grok 4.5 competes in the frontier model race.
Reasoning-model
Its hard-task results depend on reasoning skill.