Elon Musk’s xAI adds ‘Big Brain’ reasoning to Grok-3

Feb 18, 2025 06:42 PM - 1 month ago 44128

Jess Weatherbed

Jess Weatherbed is a news writer focused connected imaginative industries, computing, and net culture. Jess started her profession astatine TechRadar, covering news and hardware reviews.

Elon Musk’s xAI unveiled Grok-3 connected Tuesday, announcing that the caller artificial intelligence exemplary has “more than 10 times” the compute powerfulness of its predecessor. xAI said its latest flagship outperforms OpenAI’s GPT-4o, Google’s Gemini, and DeepSeek’s V3 models successful early testing, and now features “advanced reasoning” capabilities.

So-called reasoning models are trained to reply much analyzable questions by breaking instructions down into smaller tasks and attempting to fact-check themselves earlier offering a solution, pinch the purpose of providing stronger results. Similar models person been developed by rival companies, including OpenAI’s o1, DeepSeek’s R1, and Google’s Gemini Flash Thinking.

There are 2 Grok-3 reasoning modes available: “Think”, which will show Grok’s reasoning arsenic it resolves requests; and “Big Brain” for analyzable tasks that require much computational power. xAI is besides launching a Grok AI supplier merchandise called Deep Search, which the institution describes arsenic a “next procreation hunt engine.”

A screenshot taken successful the Grok app of Grok-3 reasoning options.

Musk says that Grok-3 is simply a “maximally truth-seeking AI — moreover if that truth is sometimes astatine likelihood pinch what is politically correct.” Previous versions of the xAI chatbot person been criticized for spreading predetermination misinformation and having fewer guardrails connected text-to-image generation, allowing it to spit retired questionable aliases offensive imagery. OpenAI is besides exploring really to create its models to “seek the truth” erstwhile handling arguable topics, but pinch the purpose of maintaining definite information rails.

The Grok-3 reasoning capabilities are disposable successful the Grok app for subscribers to X Premium Plus, which now starts astatine $40 per month. This is the 2nd hike for Premium Plus successful 2 months, having increased from $16 to $22 successful December. xAI said it is besides launching a caller subscription scheme called SuperGrok that will supply “the astir precocious capabilities and earliest entree to caller features.” SuperGrok will reportedly costs $30 per month, though it’s unclear if this is an further complaint connected apical of X subscriptions.

Elon Musk said that the Grok chatbot will soon summation a synthesized sound characteristic that sounds akin to OpenAI’s Advanced Voice Mode for ChatGPT. xAI is besides readying to make Grok-2 unfastened root successful the coming months.

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