Elon Musk's artificial intelligence company xAI is preparing to release Grok 3.5, an upgraded version of its flagship AI chatbot that promises to revolutionize how AI systems approach complex reasoning tasks.
On April 29, 2025, Musk announced on his social platform X that Grok 3.5 would enter early beta release for SuperGrok subscribers during the week of May 5. "It is the first AI that can, for example, accurately answer technical questions about rocket engines or electrochemistry," Musk stated. "@Grok is reasoning from first principles and coming up with answers that simply don't exist on the Internet."
This release comes just three months after xAI launched Grok 3 in February 2025, which has already demonstrated impressive performance. According to industry reports, Grok 3 achieved a record-breaking 1,400+ Elo score in Chatbot Arena blind testing, outperforming models from Google, Anthropic, and Meta on several benchmarks.
Grok 3.5 represents a significant advancement in AI reasoning capabilities. Unlike traditional AI systems that primarily retrieve and repackage information from the internet, Grok 3.5 employs a reasoning model that can deconstruct complex problems into manageable components and perform self-fact-checking to ensure accuracy. This approach is similar to DeepSeek's R1 model but with xAI's unique implementation.
The new model benefits from xAI's massive computational infrastructure. The company has doubled its GPU cluster to approximately 200,000 GPUs at its "Colossus" supercomputer facility in Memphis, Tennessee. This substantial increase in processing power enables Grok 3.5 to handle more sophisticated reasoning tasks.
Access to Grok 3.5 will initially be limited to SuperGrok subscribers ($30/month or $300/year), with a broader rollout expected later in 2025. The model will be available through xAI's standalone platform and eventually on X for Premium+ subscribers.
This release intensifies competition in the AI chatbot landscape, with xAI directly challenging established players like OpenAI's GPT-4o and Google's Gemini, as well as emerging competitors like China's DeepSeek. Industry analysts are watching closely to see if Grok 3.5's performance will match Musk's ambitious claims.