xAI added Grok 4 powered vending machine in its office, in partnership with Andon Labs. XAI Grok 4 beat OpenAI GPT-5 in real world vending machine operation
This shows Grok 4’s long-term coherence syccess. Managing a long running business scenario in this case would include balance inventories, place orders, set prices, and handle daily fees – tasks that are each simple but collectively, over long horizons (>20M tokens per run) stress an LLM’s capacity for sustained, coherent decision-making.
The new stealth model “Sonic” is the new Grok 4 coding model. It is performing very quickly and doing well compared to other models for coding.
XAI Grok 4 is 300% faster for coding results than GPT5 and is faster than Anthropic Sonnet.
Elon Musk is indicating that Grok 5 (which should be released by the end of 2025) will have a shot at true AGI.
There is also the possibility that xAI will release Grok 4.2 to get on top the lmarena leaderboards.
Wait until you see Grok 5.
I think it has a shot at being true AGI.
Haven’t felt that about anything before. https://t.co/a8SNQd48nd
— Elon Musk (@elonmusk) August 21, 2025
🚨 Breaking: The new stealth model “Sonic” is the new Grok model!
Elon reposted a tease then DELETED it.
xAI’s Eric hinted at Grok 4.2 release… then ghosted.
Is this Grok’s secret upgrade?
Who’s behind it—xAI, OpenAI, or someone else? pic.twitter.com/88aPBgW8St
— Dhanush C (@dhanush_chali) August 21, 2025
Is Sonic (Grok Code @elonmusk?) 300%+ FASTER than GPT5?
👇 Let’s FAFO! pic.twitter.com/s1kbCH40FQ
— Gary Simon (@designcoursecom) August 21, 2025

Brian Wang is a Futurist Thought Leader and a popular Science blogger with 1 million readers per month. His blog Nextbigfuture.com is ranked #1 Science News Blog. It covers many disruptive technology and trends including Space, Robotics, Artificial Intelligence, Medicine, Anti-aging Biotechnology, and Nanotechnology.
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