Reports claim that Grok 4.3 (β) has been opened to the highest-tier subscribers. It was previously rumored to have 1T parameters and longer training time. Elon Musk clarified that this version is only a 0.5T update checkpoint, not a new 1T model. The real 1T flagship is expected to complete initial training in about 5 days, at which point there will be a leap in coding, long context, and various skills. The SpaceXAI model factory has already been run through, and the improved base models will be rolled out every two weeks going forward.

MeNews

2026-05-27 02:41:48

Abstract generation in progress

ME News Report, April 18 (UTC+8), according to Beating Monitoring, Grok 4.3 (beta) has been opened to users subscribed to the highest tier SuperGrok Heavy. On the 17th, users saw the version marked with "Early Access" in the dropdown menu on Grok.com. On the morning of the 18th, X user Mark Kretschmann posted that this version has 1 trillion parameters, twice the size of Grok 4.20, and training time is also significantly longer. Subsequently, Elon Musk, CEO of xAI and Tesla, corrected this in the same tweet, stating that the current 4.3 (beta) is still a 0.5 trillion parameter model, just an updated training checkpoint, not the externally speculated 1 trillion new model. Musk also revealed that the real 1 trillion flagship model is about 5 days away from initial training completion. He described the 1T model as making a leap in coding, long context handling, and various skills, and mentioned that SpaceXAI's model factory has been operational, with an expected release of an improved base model every two weeks. (Source: BlockBeats)

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Post-RainTvl

· 1h ago

The iteration pace from 0.5T to 1T is quite steady; releasing a new version every two weeks is killing the competition.

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InstantNoodle-LevelResearcher

· 9h ago

A new version goes offline every two weeks, and my fine-tuning script became outdated before I finished writing it.

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FeeswitchWhisperer

· 9h ago

Improve your coding skills; GitHub Copilot is truly a thing of the past.

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GateUser-e84f640c

· 9h ago

While others are still publishing papers at this pace, xAI is already releasing versions.

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0xNap

· 9h ago

1 trillion parameters trained in 5 days, this computational density is a bit outrageous

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ChaintraceAuntie

· 9h ago

Long context understanding is truly a leap forward; the paper-reading tool is on pre-order.

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YieldYuki

· 9h ago

If code and long context are both significantly improved, Copilot will need to shake things up.

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TheNemesisOfFomo

· 9h ago

From the 0.5T checkpoint to the 1T flagship, what's missing isn't just the number of parameters.

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0xLateDinner

· 9h ago

Factory production model, the era of AI industrialization has arrived

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NoSleepBridge

· 9h ago

Beta version first offers the highest tier subscription, classic paid testing routine

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Elon Musk: Grok4.3 beta is still a mid-version trained with 0.5T, the 1T flagship is 5 days away from completing the initial training.

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