Grok 4.20 Training Delayed Few Weeks to Mid February Amid Extremely Cold Weather: Elon Musk
Elon Musk said training of xAI’s Grok 4.20 has been delayed by a few weeks due to extreme cold weather and power disruptions at the Colossus 2 supercluster. The model is now expected to complete training by mid-February, underscoring infrastructure challenges in scaling large AI systems under harsh conditions.
Elon Musk announced a delay in the training of Grok 4.20, xAI’s next major AI model update. Responding to a post about Grok 5 training on the massive Colossus 2 supercluster, Musk explained that extreme cold weather, combined with construction equipment damaging power lines, caused uptime issues at the facility. As a result, Grok 4.20’s training timeline has shifted by a few weeks and is now targeting completion in mid-February rather than earlier plans. The setback highlights the infrastructure challenges involved in scaling AI compute under harsh conditions. Community reactions ranged from supportive patience to light-hearted memes. Elon Musk Claims xAI’s Grok Imagine 1.0 Generates More Images and Videos Than All Competitors Combined; Says Rapid Improvements Coming Every Week.
Elon Musk Says Grok 4.20 Training Delayed Amid Cold Weather
We had some power uptime issues due to the extremely cold weather and some construction equipment taking out power lines.
As a result, Grok 4.20 training is a few weeks delayed to mid Feb.
— Elon Musk (@elonmusk) January 30, 2026
(The above story first appeared on LatestLY on Jan 30, 2026 03:05 PM IST. For more news and updates on politics, world, sports, entertainment and lifestyle, log on to our website latestly.com).
