Grok 4.3 Beta xAI Launch: Long-Context Video AI Behind a $300 Paywall

# Grok 4.3 Beta xAI Launch: Long-Context Video AI Behind a $300 Paywall

> **Quick answer:** xAI launched Grok 4.3 Beta on April 17, 2026, exclusively for SuperGrok Heavy subscribers ($300/month). It adds native video understanding, AI-generated slide decks and spreadsheets, and retains the industry-leading 2 million token context window. Standard SuperGrok users ($30/month) can see the model in the dropdown but cannot access it yet.

The Grok 4.3 Beta xAI launch dropped quietly on April 17, 2026, and the silence was strategic. No press release, no livestream — just a new model appearing in the selector for a fraction of Grok's user base. That restraint tells you something about where xAI is right now: confident enough in its product roadmap to let the features do the talking, but deliberately rationing access to its highest-paying tier first.

Here is what Grok 4.3 Beta actually does, what it costs, and what the paywall strategy reveals about the broader AI race heading into a year that will see both xAI and SpaceX eyeing public markets.

## What Grok 4.3 Beta Actually Does: The Feature Breakdown

The headline addition is native video input. Grok 4.3 can now ingest video footage and answer questions about it conversationally — a capability that puts it directly in competition with Google Gemini 1.5 Pro's video understanding and OpenAI's GPT-4o vision features. This is meaningful: until now, Grok's multimodal edge was primarily image-based.