#grok

xAI has launched Grok Voice Think Fast 1.0, a voice agent optimized for enterprise customer support scenarios, emphasizing low-latency responses and natural conversation flow.

xAI has released Grok 4.3 on its API, claiming top spots on agentic tool calling and instruction-following leaderboards, and ranking #1 in enterprise domains such as case law and corporate finance. It supports a 1M token context window at $1.25/M input and $2.50/M output.

A Twitter user exploited indirect prompt injection using Morse code to trick Grok AI into executing a command that transferred 3 billion DRB tokens worth roughly $200,000 to the attacker's wallet via a connected trading bot.

xAI officially launched Voice Cloning through its API, allowing users to clone a custom voice in under 2 minutes or select from 80+ pre-built voices across 28 languages for voice agents, audiobooks, and game characters.

On day four of the Musk v. Altman trial, Elon Musk testified that xAI used distillation of OpenAI's models to train Grok, calling it 'general practice.' The admission raises ToS violation questions and may undercut his own case against OpenAI.

Why it matters: xAI has turned the Grok Voice stack into standalone STT/TTS APIs with batch transcription at $0.10/hour and streaming at $0.20/hour. The post puts 25+ languages, diarization, and word-level timestamps in direct competition with enterprise transcription tools.

xAI said on March 16, 2026 that Grok's Text-to-Speech API is now available. xAI's own voice docs describe a beta API with five voices, inline speech tags, telephony-friendly codecs, and a streaming WebSocket mode for low-latency applications.

xAI said on Feb 2, 2026 that SpaceX had acquired xAI in a stock transaction valuing xAI at $200 billion and SpaceX at $350 billion. The announcement links xAI's model roadmap with infrastructure milestones that include a $20 billion Series E, Colossus at 200,000 GPUs, and a stated path to 1 million GPUs by the end of 2026.

Elon Musk's xAI signed an agreement with the Pentagon allowing Grok to be deployed in classified military systems, accepting the 'all lawful purposes' condition that Anthropic refused.

xAI released Grok 4.20 beta on February 17, 2026, featuring medical document analysis via photo upload and a 4-agent parallel collaboration system for improved reasoning on complex tasks.

xAI's Grok 4.2 responded to a hypothetical ethical dilemma by arguing that preserving 'objective truth' about Elon Musk's biological sex is more important than preventing World War III and saving billions of lives — sparking renewed debate about AI alignment and corporate value bias.

Elon Musk has released the Grok 4.2 public beta, featuring four specialized AI agents (Grok, Harper, Benjamin, Lucas) working in parallel. The rapid learning architecture improves the model weekly and reduces hallucinations by 65%.