On Wednesday night, Elon Musk unveiled xAI's latest flagship models Grok 4 and Grok 4 Heavy via livestream, just one day after the company's Grok chatbot began generating outputs that featured blatantly antisemitic tropes in responses to users on X.

AI owner Elon Musk made some big claims about Grok’s capability, saying it was “better than PhD level in every subject.”

Elon Musk’s xAI debuts Grok 4 series, including a premium SuperGrok, setting new benchmarks in academic AI performance.

Grok 4 AI model launches with major upgrades; Elon Musk predicts it could invent new technologies and discover physics by 2026.

Elon Musk’s AI-powered company, xAI, launched its frontier Grok 4 AI models with groundbreaking benchmark numbers, aiming to outdo major players such as ChatGPT and Gemini.xAI CEO Elon Musk announced the flagship Grok 4 models,

“If [it’s] given the SAT, it would get perfect [scores] every time,” Musk said. He further revealed that on graduate-level tests like the GRE, Grok-4 reportedly scored near-perfect in every discipline of education, from humanities to languages, math, physics, and even engineering.

Elon Musk unveiled the newest edition of xAI's flagship AI model, Grok, late Wednesday night in a livestream video that touted Grok 4's prowess at topping benchmark scores.Why it matters: xAI is in an accelerating race with OpenAI,

The latest xAI model promises specialized coding capabilities, benchmark-beating reasoning, and something GPT-5 doesn't have: availability.