Key Highlights
- Elon Musk revealed that Grok 4.5 becomes publicly accessible Wednesday, July 9
- The CEO characterized the system as “Opus-class,” asserting superior speed, token efficiency, and cost advantages over Anthropic’s Claude
- The new model leverages xAI’s V9 foundation architecture with 1.5 trillion parameters
- SpaceX shares dropped approximately 7% during its inaugural trading day as a Nasdaq 100 component, with modest pre-market gains Wednesday
- OpenAI plans to unveil GPT-5.6 Thursday after postponing the launch due to national security considerations
On Tuesday evening, Elon Musk took to social media to announce the public debut of Grok 4.5, scheduled for Wednesday, July 9. This represents the newest iteration of SpaceXAI’s primary artificial intelligence platform, previously operating under the xAI brand.
Musk used his platform to characterize the release as “Opus-class” technology. He positioned it as a direct competitor to Anthropic’s Claude offering, claiming Grok 4.5 delivers “faster, more token-efficient, and lower cost” performance.
The foundation of Grok 4.5 rests on xAI’s freshly developed V9 architecture, boasting an impressive 1.5 trillion parameters. Earlier this July, Musk disclosed that the system had begun restricted beta trials at SpaceX and Tesla facilities.
Grok 4.3, the preceding version, made its appearance in April. Musk had been hinting at an enhanced successor since that time.
SpaceX’s Artificial Intelligence Strategy
xAI merged into SpaceX during February 2026 and underwent rebranding as SpaceXAI. The Grok family of models now represents a critical component of SpaceX’s artificial intelligence market strategy, complementing its established aerospace and satellite operations.
The rollout of Grok 4.5 arrives during a period of escalating rivalry within the generative AI sector. OpenAI, Anthropic, and Google have each introduced progressively advanced systems throughout the previous twelve months.
OpenAI has scheduled the public introduction of GPT-5.6 for Thursday. The company postponed this launch last month following government warnings about potential exploitation by malicious entities.
Market observers will closely monitor Grok 4.5’s adoption rate among individual users and enterprise clients. Positive market response could bolster SpaceX’s artificial intelligence revenue objectives.
SPCX Stock Experiences Decline
Tuesday represented SpaceX’s first trading session following its addition to the Nasdaq 100 index. Shares tumbled nearly 7% during the session, caught in a widespread technology sector downturn.
Space Exploration Technologies Corp., SPCX
Multiple Wall Street firms launched coverage with Buy recommendations, yet these endorsements proved insufficient to reverse the downward momentum. Market participants maintained a cautious stance.
SpaceX shares enjoyed robust momentum following the IPO, though these early advances dissipated rapidly. Based on Tuesday’s closing price, the stock has surrendered roughly 7% since its June 12 market entrance.
During Wednesday’s pre-market session, shares advanced 0.12%, representing a minor rebound preceding the Grok 4.5 introduction.
SpaceX maintains a Strong Buy consensus rating according to TipRanks. Analysts have established an average price target of $212.08, suggesting potential upside of approximately 46% from present trading levels.


