TLDR
- SPCX fell 0.78% as Grok 4.5 launched for coding and agentic tasks.
- SpaceXAI priced Grok 4.5 below several rival premium AI models.
- SPCX rebounded 0.59% after hours, closing regular trading at $148.30.
- Grok 4.5 rollout follows SpaceXAI’s deeper push into coding tools.
- Valuation concerns weighed on SPCX despite fresh enterprise AI momentum.
SpaceX (SPCX) slipped on Wednesday as the Grok 4.5 rollout drew fresh attention. The stock fell 0.78% to $148.30, then rose 0.59% after hours to $149.18. The move came as traders weighed product news against pressure on SpaceX’s public market debut.
Space Exploration Technologies Corp., SPCX
SPCX Slides as Grok 4.5 Launch Meets Market Pressure
SpaceXAI released Grok 4.5 on Wednesday and described it as its most advanced model. The company built the model for coding, agentic tasks, finance, legal work and document-heavy workflows. SPCX ended lower as the launch failed to stop selling pressure.
The stock touched levels near its IPO opening price during the session. It later recovered from deeper intraday losses, but the rebound remained limited. The after-hours gain showed some support after the regular session decline.
SpaceX entered the Nasdaq-100 this week, which added more attention to its trading pattern. However, the stock has dropped sharply from its mid-June peak. The weakness has kept valuation concerns in focus, even as the company expands into enterprise software.
Grok 4.5 Rollout Targets Coding and Enterprise Workflows
SpaceXAI said Grok 4.5 trained across tens of thousands of Nvidia GB300 graphics processing units. The company also used data filtering, deduplication, and quality scoring during training. As a result, it positioned the model for speed, cost control, and complex task execution.
The model became available through Grok Build, Cursor, and the SpaceXAI developer console. Users can access it with an API key through the company’s portal. EU availability will arrive in mid-July, according to the company’s rollout schedule.
SpaceXAI priced Grok 4.5 at $2 per million input tokens. It also set output pricing at $6 per million tokens. By comparison, rival models carry different pricing structures across premium coding and reasoning workloads.
SpaceXAI Expansion Adds Context to SPCX Stock Drop
SpaceXAI’s launch follows SpaceX’s reported all-stock deal to buy Anysphere, the startup behind Cursor. The transaction values Anysphere at $60 billion and supports SpaceX’s enterprise software push. The move also links Grok 4.5 directly with coding tools used by developers.
SpaceX absorbed Musk’s xAI operation earlier this year and folded it into SpaceXAI. The change placed the artificial intelligence unit under the broader SpaceX structure. Therefore, new model launches now carry more weight for SPCX’s market story.
The company still faces questions over losses, spending, and its large valuation. SpaceX lost nearly $5 billion last year on revenue above $18.5 billion. Even so, bullish analyst calls and new software products continue to support the long-term growth case.
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