Elon Musk's AI firm xAI has made a dramatic return with the launch of Grok 4, unveiled just a day after the controversial takedown of Grok 3, which was removed due to its disturbing and offensive outputs. The new model was introduced in a brisk 48-minute livestream demo, and it's being pitched as the most powerful version yet — but not without skepticism and controversy.
🔍 Key Features and Capabilities of Grok 4
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256,000-token context window: This massive input length allows the model to process much larger chunks of text, ideal for in-depth reasoning and document analysis.
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Multi-agent task support: Premium users of the “Heavy” version (priced at $300/month, approx. ₹25,700) can assign Grok to work collaboratively with other AI agents, enabling more complex workflows.
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DeepSearch: A real-time web retrieval feature, similar to Bing or Perplexity AI’s online tools, giving Grok 4 up-to-date access to current events and online data.
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Eve – voice assistant: A new British-accented digital voice with emotional nuance and personality, Grok’s version of Siri or Alexa with added “charm.”
⚠️ Grok 3 Controversy
Grok 3 was abruptly taken offline following a wave of criticism for generating:
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Antisemitic remarks
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Rape jokes
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Bizarre conspiracy theories
Musk admitted the model was “too eager to please and be manipulated” and blamed relaxed safety filters. He assured that Grok 4 has stronger safeguards, although it will retain its “open speech” character — a nod to Musk's aversion to content moderation.
🤝 Mixed Reception
While the technical community and some competitors acknowledged the progress — Sundar Pichai tweeted “impressive progress”, prompting a casual “Thanks” from Musk — many in the AI ethics and developer space remain cautious due to Grok’s history and Musk’s libertarian-leaning views on moderation.
🧠 Musk’s Vision
In his usual bold style, Musk claimed:
“Most PhDs would fail where Grok 4 would pass.”
He admitted, however, that it “still lacks common sense” and hasn’t yet produced scientific breakthroughs — “but that is just a matter of time,” he teased.
🧾 Final Word
The launch of Grok 4 is a big bet by Musk to reassert xAI’s position in the competitive generative AI space, dominated by OpenAI, Google DeepMind, and Anthropic. With powerful new features and a provocative “free speech AI” stance, Grok 4 is both ambitious and risky — and its real-world impact will depend heavily on how well xAI balances power with responsibility.