Inside Grok-3, The Most Powerful AI Model Yet

Good morning. It’s Wednesday, February nineteenth.

On today in tech history: 1946, Alan Turing presented his “Proposal for the Development within the Mathematics Division of an Automatic Computing Engine (ACE)” to the National Physical Laboratory (NPL) in England.

Grok 3 Leads The Pack
Recent Humanoid “Mentee” Robot
FORMER OPENAI CTO STARTS NEW COMPANY
5 Recent AI Tools
Latest AI Research Papers

You read. We listen. Tell us what you think that by replying to this email.

Today’s trending AI news stories

Grok-3 outpaces ChatGPT, DeepSeek and becomes the brand new king of the hill

Elon Musk’s xAI debuted Grok-3 on Monday and the Chatbot Arena community has unanimously declared Grok-3 the brand new benchmark leader, with standout ends in AIME and GPQA. Blind tests on the platform placed Grok-3 ahead of ChatGPT, Gemini, and DeepSeek surpassing the 1400 rating barrier on LMArena, excelling in coding, mathematics, and instruction following. OpenAI founding member Andrej Karpathy shared an early assessment on 𝕏, praising Grok-3’s performance and suggesting it matches or exceeds OpenAI’s top-tier models.

The model runs on xAI’s Colossus supercomputer, which has now expanded to 200,000 Nvidia GPUs—doubling its previous capability in only 92 days. In the course of the live demo, Musk confirmed that Grok 2 can be open-sourced once Grok-3 is stable, likely inside the following few months. He also hinted that Grok may be tagging along Optimus robots to Mars, with a possible launch window opening in November 2026.

Premium+ 𝕏 subscribers get first dibs on features like DeepSearch and an upcoming voice mode designed to boost functionality. A separate web and app subscription will follow. Premium users get first dibs on features like DeepSearch and a voice mode set to boost functionality. @minchoi’s thread presents some wild use cases. Read more.

Israeli company introduces humanoid robot with 360° vision, enhanced power, and precision

Mentee Robotics from Israel has unveiled the MenteeBot V3.0, a complicated humanoid robot designed for each domestic and industrial applications. This model features custom-built actuators that provide 3 times the ability, precision, and efficiency in comparison with its competitors. With a height of 175 cm and a walking speed of 1.5 meters per second, it will possibly lift as much as 25 kg.

The robot’s 360-degree vision system, powered by head-mounted sensors and fisheye cameras, provides comprehensive environmental awareness. A hot-swappable battery system allows for over three hours of continuous operation, enhancing its utility in demanding environments.

The MenteeBot V3.0 is supplied with dual Jetson Orin AGX processors for advanced AI functions and real-time decision-making. It employs a singular training method called the “Foundation Model,” combining text instructions and live demonstrations for effective learning. Read more.

Former OpenAI CTO Mira Murati’s latest AI startup, Considering Machines Lab, comes out of stealth

Image: Kimberly White/Getty Images for WIRED

Mira Murati has officially unveiled Considering Machines Lab, a brand new AI enterprise stacked with top-tier talent from her previous team. The announcement, made in a blog post, comes months after her departure from OpenAI, where she played a central role in shaping its AI research and deployment strategies.

I began Considering Machines Lab alongside a remarkable team of scientists, engineers, and builders. We’re constructing three things:
– Helping people adapt AI systems to work for his or her specific needs
– Developing strong foundations to construct more capable AI systems
– Fostering a… x.com/i/web/status/1…

– Mira Murati (@miramurati)
6:33 PM • FEB 18, 2025

The startup’s deal with “frontier” AI signals a push into high-complexity, next-generation models—potentially addressing core gaps in scalability, alignment, and safety. Amongst those joining her is OpenAI cofounder John Schulman, who briefly worked at Anthropic before linking up with Murati. Considering Machines Lab is predicted to contribute to the broader discourse on AI safety, governance, and technical advancements, though its exact direction stays to be seen. Read more.