Grok 3 mini is the light member of the xAI family on Magnus: fast, inexpensive, and surprisingly strong at maths and code for its size.
Launched alongside Grok 3 in February 2025 as the efficient tier of the generation - less world knowledge than its big sibling, but with the same reasoning training applied to a smaller, faster model.
On the All-inclusive plan a Grok 3 mini reply costs 1 credit.
Quick asks, maths-flavoured questions, and cheap chatty agents that keep the Grok personality without the Grok price. Pair it with the humour slider for a lively 1-credit sidekick.