- SpaceX launched Grok 4.5 on Thursday, which it dubbed its 'smartest model yet', also being the first AI model to be trained by AI firm Cursor.
- The latest in its Grok series of large language models is capable of "excelling at coding, agentic, tasks and knowledge work".
- Grok 4.5 is immediately available for developers and is described as the company's most advanced AI system so far.
- Grok 4.5 is trained on Nvidia GPUs and is designed to handle complex, agentic coding tasks for enterprise and developer use cases.
- Grok 4.5 costs $2 for every million input tokens and $6 for every million output tokens.
- In comparison, Open AI's GPT 5.6 model 'Sol' costs $5 per million input tokens and $30 per million output tokens.
- Management has raised large amounts of equity and issued long dated debt to fund AI and orbital compute plans, indicating that Grok 4.5 shows that this cash is being deployed into GPU heavy training and commercial tools for developers.
- Grok 4.5 gives Space Exploration Technologies a clearer AI product to sell into existing and future compute deals, which may help support the investment case that the company can use its capital to build multiple revenue lines beyond launch and Starlink.
SpaceX has unveiled Grok 4.5, its latest AI model, which is touted as the company's most advanced system to date. This model, developed in partnership with Cursor, is designed to tackle complex coding tasks and knowledge work, marking a significant leap in AI capabilities.
Grok 4.5 is capable of creating interactive simulations with a single prompt, showcasing its proficiency in coding and agentic tasks. The model is priced at $2 for every million input tokens and $6 for every million output tokens, making it a competitive option compared to OpenAI's GPT 5.6 model, which costs $5 and $30 respectively.

According to SpaceX, Grok 4.5 is trained on Nvidia GPUs and is immediately available for developers, indicating a strategic move to enhance its AI offerings. The company has raised substantial equity and issued long-dated debt to fund its AI initiatives, with Grok 4.5 representing a key component of its plans for orbital compute and commercial tools.
Management believes that Grok 4.5 will provide a clearer AI product for existing and future compute deals, potentially expanding SpaceX's revenue streams beyond its traditional launch and Starlink services. This launch underscores SpaceX's commitment to leveraging AI technology in innovative ways.
“Grok 4.5 is priced at $2 for every million input tokens and $6 for every million output tokens, making it a competitive option compared to OpenAI's GPT 5.6 model. This launch reflects SpaceX's strategy to diversify revenue streams beyond its traditional launch and Starlink services.”
