X.ai Grok 3 and Mira Murati's Thinking Machines
**Grok 3** has launched with mixed opinions but strong benchmark performance, notably outperforming models like **Gemini 2 Pro** and **GPT-4o**. The **Grok-3 mini** variant shows competitive and sometimes superior capabilities, especially in reasoning and coding, with reinforcement learning playing a key role. **Mira Murati** has publicly shared her post-OpenAI plan, founding the frontier lab **Thinking Machines**, focusing on collaborative, personalizable AI, multimodality, and empirical safety and alignment research, reminiscent of **Anthropic**'s approach.