I WAS GIVEN EARLY ACCESS TO GROK 3 EARLIER TODAY, MAKING ME I THINK ONE OF THE FIRST FEW WHO COULD RUN A QUICK VIBE CHECK

Summary from the TLDR newsletter

Grok 3 has an around state-of-the-art thinking model that is able to solve some advanced questions. It is likely somewhere around o1-pro in terms of capability and ahead of DeepSeek-R1. DeepSearch can produce high quality responses to various research- or lookup-type questions, but it can still hallucinate information - even URLs. Overall, Grok 3 + Thinking feels somewhere around the state-of-the-art territory of OpenAI's strongest models, and slightly better than DeepSeek-R1 and Gemini 2.0 Flash Thinking.