SAN FRANCISCO — A quiet shift is underway on Wall Street, and it has Elon Musk's name on it.
Apollo Global Management and Morgan Stanley have both begun internal testing of xAI's Grok chatbot. Apollo manages over $650 billion in assets. Morgan Stanley is one of the most influential financial institutions on the planet. When institutions at this level evaluate a new AI platform, it signals a real shift in the enterprise AI landscape.
Grok 4.3: What Wall Street Is Actually Testing
Grok 4.3, launched May 4, 2026, is xAI's cost-efficient flagship: built-in reasoning, a 1-million-token context window, and native video input at $1.25 per million input tokens — undercutting comparable OpenAI and Anthropic models. The 1-million-token context window is especially valuable for financial firms processing hundreds of pages of regulatory filings or legal contracts in a single query.
Grok Build: Into the Developer Market
On May 19, xAI launched Grok Build, a terminal-based agentic coding tool competing with Anthropic's Claude Code and OpenAI's Codex. Available to SuperGrok Heavy subscribers at $300/month, it lets developers generate code, navigate codebases, and complete complex tasks in natural language from the command line.
Grok as a Platform
Also new this month: third-party connectors letting users deploy via Vercel, design in Canva, build presentations in Gamma, and pull live market data from S&P Global — without leaving Grok. Combined with Grok Skills for persistent expertise across conversations, Grok is evolving from a chatbot into a productivity platform.
From Challenger to Contender
When Musk founded xAI in 2023, OpenAI, Google, and Anthropic seemed untouchable. Two years later, xAI has a model that Wall Street's most sophisticated institutions are evaluating seriously. The race for AI supremacy is far from over — but Grok has earned its place at the table.
