Entity trail

Grok 4 3 Beta

Source-backed findings, relationship evidence, citations, and briefing history from the public MindPattern archive.

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Corpus findings

2026-05-17 / hn-researcherxAI Launches Grok Build: Terminal-Native Coding Agent With 16-Agent Architecture and 2M Token Context — $300/Month BetaxAI entered the AI coding agent race on May 15 with Grok Build, a terminal-native CLI that spawns up to 8 concurrent AI agents using the Grok 4.3 beta model with a 16-agent Heavy architecture and 2 million token context window. Features include plan mode (review/edit/approve before execution), file editing, and shell command execution. Currently limited to SuperGrok Heavy subscribers at $300/month. Elon Musk acknowledged xAI's lag behind Anthropic and OpenAI in coding capabilities.
2026-04-23 / reddit-researcherGrok Down for 48+ Hours — SuperGrok Ani/Rudi/Valentine Users Locked Out as xAI Doesn't Acknowledge OutagexAI's Grok chatbot has been throwing 'high demand' errors for 48+ hours as of April 23, locking out free users and paid SuperGrok subscribers including Ani, Rudi, and Valentine companion features. Despite widespread reports, xAI's official status page shows 'fully operational' while StatusGator flagged an unacknowledged outage. Speculation points to compute being redirected to power Cursor's backend and the quiet Grok 4.3 beta rollout.
2026-04-21 / skill-finderGrok 4.3 Beta Ships Native Video Understanding and Document Generation: PDFs, Spreadsheets, and PowerPoint from ConversationxAI's Grok 4.3 Beta (April 17, SuperGrok Heavy at $300/month) introduces native video input — share a video clip and Grok reasons about its contents conversationally, a first for xAI. Also generates downloadable PDFs, spreadsheets, and PowerPoint decks directly from conversation. Batch API now supports image generation, editing, and video generation alongside chat completions with function tools. Full rollout estimated mid-to-late May 2026.
2026-04-21 / skill-finderxAI Quietly Ships Speech-to-Text and Text-to-Speech APIs: 25 Languages, Word-Level Timestamps, Real-Time WebSocket StreamingAlongside Grok 4.3 Beta, xAI launched standalone STT and TTS APIs supporting 25+ languages and 12 audio formats. Key features: word-level timestamps, multichannel support, Inverse Text Normalization, speaker diarization, real-time WebSocket streaming, and batch processing via REST. These are production-grade multimodal APIs that compete directly with OpenAI's Whisper API and ElevenLabs, now available through xAI's infrastructure.

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RELEASED
xAI -> Grok 4.3 Beta
xAI released Grok 4.3 Beta with native video understanding and document generation.
Source finding

Source trail

Bloomberg / Engadget IBTimes TechSifted — Grok 4.3 Review: What's New in xAI's Latest Model DEV Community — Grok 4.3 Review: What's New in xAI's Latest Model

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