XAI, Elon Musks AI company, may be embroiled in an escalating lawsuit with OpenAI. But thats not stopping it from shipping new products on a Friday night, no less.This evening, xAI revealed that it has begun to roll out an upgraded version of its flagship Grok 2 chatbot model to all users on X, the social network formerly known as Twitter. (X, which Musk also owns, often serves as a testing ground of sorts for Grok.) The enhanced Grok is three times faster, xAI claims in a blog post, and offers improved accuracy, instruction-following, and multi-lingual capabilities.Free users can only ask Grok ten questions every two hours. Subscribers to Xs Premium and Premium+ plans get higher usage limits. XAI also announced tonight the addition of a Grok button to X, which the company says is designed to help users discover relevant context, understand real-time events, and dive deeper into trending discussions. The new Grok button. Image Credits:xAIAnd the startup said its making several changes to its enterprise API. XAIs API has a pair of new Grok models with better efficiency and multilingual performance, xAI says. As a result of the efficiency gains, pricing has been reduced from $5 per million input tokens (~750,000 words) or $15 per million output tokens to $2 per million input tokens and $10 per million output tokens. In the coming weeks, xAIs image generation model, Aurora, will come to the API as well, xAI says. Aurora, a largely unfiltered image AI, was released on X this month in the Grok chatbot experience.