xAI Flips the Table: Grok 4 Goes Free, Just as GPT-5 Debuts (Grok 4 vs GPT 5)

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Written by Aarti Dattani

August 12, 2025

In a bold strategic coup, the Elon Musk-led AI company xAI released Grok 4, their latest and most powerful language model, free of cost- a high-profile release moving in lockstep with OpenAI’s free-for-all launch of GPT-5, thus setting the stage for a big-money AI duel.

Grok 4, officially released at the beginning of July 2025, was formerly held under a glass case behind high-tier subscription services like SuperGrok and X Premium, with its heavier counterpart priced as much as $300 a month.

AI announced in mid-August that Grok 4 is now available for all users to use in Auto or Expert modes through the app. 

However, its usage is limited, with reports suggesting a five-query limit every 12 hours, even though xAI maintains these are generous and temporary limits.

The rollout is more than just a goodwill gesture; it is a calculated response directly to the debut of ChatGPT-5

The new model from OpenAI, reputed to be of “PhD-level” capabilities, quicker in responses and generating safer completions, has gotten mixed reactions from users, some tagging it as being “sterile” and overcautious.

On the other hand, Grok 4 promises fast responses, real-time data, loads of humor, and a looser intonation, increasingly suggesting why xAI is aggressively pushing it on a free-tier basis.

Shortly before Grok 4 was made available free of charge, xAI unleashed Grok Imagine to the U.S. user-base, a text-to-image/video AI setup, now available for Android users outside iOS, subject to regional restrictions.

Timing is everything! 

OpenAI released GPT-5 into the wild, prompting xAI to come up with its strong contender that requires no fees, just a few clicks, and limited use! 

The users are left behind to test, compare, and choose. 

In the court of public opinion, free really does weigh more than a pay wall, even if limited.

Grok 4 vs GPT 5 AI Rivalry

Will we see the unfolding rivalry: is xAI simply responding to OpenAI’s moves, or are we witnessing a carefully constructed, multi-phased game wherein the rivalry is meant to craft AI narratives, influence user behavior, and dominate media headlines?

Is this all just a cut-throat competition or a carefully choreographed showdown whose ramifications spill outside of the tech world?

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Aarti Dattani

Aarti Dattani is a content writer by profession with 5 years of experience writing in various niches. She is passionate about AI and loves to learn and get to the depth of it. At AI Gimmick, Aarti aims to bring to you readers a simplified way to understand the difficult technical terms and help you explore new tools and trends.

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