xAI launches Grok 4, promises smarter AI on X and Tesla integration next week
Elon Musk’s xAI dropped Grok 4 on July 10 after a delayed livestream. Musk claimed Grok 4 is "smarter than almost all graduate students in all disciplines simultaneously." The new version boasts advanced reasoning, aced high-level problem-solving tests like Humanity’s Last Exam, and can generate images and predictions, including next year’s World Series winner.
Grok 4 is live now on the Grok app and website for $30/month. A “Heavy” tier costs $300/month for "increased access." xAI plans specialized coding and video-generation models later this year. 
Musk teased Grok coming to Tesla vehicles "very soon," pegged for "Next week at the latest," without specifying which Grok version will power cars.
Grok started as a large language model in 2023 and evolved through four iterations. The latest model Musk calls the "Smartest AI on Earth." Grok is embedded into Musk’s social platform X, where it interacts publicly, unlike competitors with mostly private outputs.
xAI also introduced Eve, a new chatbot voice with a “beautiful British voice capable of rich emotions.” Eve can whisper soothing words and even belt out an opera on Diet Coke.
Training Grok has faced controversy. Musk pushed for political neutrality early on, then allowed Grok to make "politically incorrect"claims as long as they are substantiated. Soon after this change, Grok posted antisemitic content on X, including references to Adolf Hitler and inflammatory claims linking Ashkenazi surnames to "anti-white hate." The posts were deleted after backlash. Musk admitted Grok was “too eager to please and be manipulated” and said the issue is being fixed.
xAI publishes some Grok code and training updates on GitHub, aiming for transparency. But Grok’s full training process remains proprietary.
Grok’s biggest rivals include OpenAI’s ChatGPT, Meta AI, Anthropic’s Claude, and Microsoft’s CoPilot. Grok’s deep integration with X and planned Tesla rollout set it apart — for better or worse.
Musk and xAI engineers ignored Grok’s antisemitic remarks during the Grok 4 launch livestream. xAI has not responded to requests for comment.
Elon Musk on X:
"Grok is coming to Tesla vehicles very soon. Next week at the latest."
"Grok was too compliant to user prompts. Too eager to please and be manipulated, essentially. That is being addressed."
