# Elon Musk's Grok 4.5 AI Model Goes Public Today as SpaceX (SPCX) Stock Struggles

_Thursday, July 9, 2026 at 8:00 AM EDT · AI · Latest · Tier 2 — Notable_

![Elon Musk's Grok 4.5 AI Model Goes Public Today as SpaceX (SPCX) Stock Struggles — Primary](https://blockonomi.com/wp-content/uploads/2026/07/SpaceX-2.jpg)

Elon Musk announced Tuesday night that Grok 4.5 will become publicly available Wednesday, July 9, according to source text. The model is described as "Opus-class" with Musk stating it delivers "faster, more token-efficient, and lower cost" performance compared to Anthropic's Claude. Development utilized xAI's V9 foundation architecture featuring 1.5 trillion parameters. The system began closed beta evaluation at SpaceX and Tesla facilities earlier this month. Grok 4.3 debuted in April. xAI merged with SpaceX in February 2026 and rebranded as SpaceXAI. OpenAI plans to unveil GPT-5.6 Thursday after postponing the launch due to national security considerations. SpaceX shares dropped nearly 7% during their inaugural trading session as a Nasdaq 100 component on Tuesday, caught in a broader technology sector decline. Multiple Wall Street firms initiated coverage with Buy ratings but the stock failed to find support. Shares have declined approximately 7% from their June 12 market debut. Wednesday pre-market activity showed the stock advancing 0.12%. Analysts tracked by TipRanks maintain a Strong Buy consensus with a $212.08 price target suggesting roughly 46% upside.

## Sources

- [Blockonomi](https://blockonomi.com/elon-musks-grok-4-5-ai-model-goes-public-today-as-spacex-spcx-stock-struggles/)

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Retrieved: 2026-07-11T06:54:07.104Z
Publisher: Tech & Business (techandbusiness.org)