Elon Musk asserted late Tuesday that his AI startup xAI “has a chance of reaching AGI with Grok 5,” a feat he “never thought” feasible until seeing Grok 4’s recent success on the ARC-AGI reasoning test. Grok 4 vaulted to the top of the ARC-AGI leaderboard earlier this week by outscoring OpenAI and Anthropic on abstract problem solving and program synthesis—benchmarks measuring an AI’s capacity to reason, solve novel problems and adapt to new situations.

Training Timeline and Architectural Innovations
Musk confirmed on X that Grok 5 training will begin in a few weeks, targeting release before year-end. Insiders say the model will leverage tens of thousands of NVIDIA GPUs, emphasizing efficiency over scale. Grok 5 is expected to add multimodal inputs—enabling text, image and possibly audio reasoning—and a revamped “thinking” architecture designed to reduce hallucinations while supporting longer context windows.
Organizational Turmoil Raises Questions
The bullish AGI outlook arrives amid major team changes at xAI. Reports indicate the company recently dismissed over 500 data-annotation contractors and promoted 20-year-old Diego Pasini to oversee the remaining annotation team. Former employees express doubt that a smaller workforce can sustain the rapid development schedule, while xAI remains tight-lipped on internal dynamics.
Broader Implications for Tesla and Autonomy
Analysts note that an AGI-capable Grok 5 could accelerate Musk’s vision of integrating advanced reasoning into Tesla’s autonomous-driving and robotics programs. He has previously floated folding xAI into Tesla to endow its vehicles with on-board AI cognition. For now, the tech world will be watching Grok 5’s training run—and subsequent ARC-AGI benchmarks—to see if Musk’s confidence translates into demonstrable progress toward true artificial general intelligence.