Elon Musk’s artificial intelligence (AI) company, SpaceX AI, has unveiled its latest AI model, Grok 4.5, designed for advanced coding and AI agent tasks. As OpenAI prepares to launch its next-generation model, GPT-5.6, the AI coding market is becoming increasingly competitive.
SpaceX AI introduced Grok 4.5 on Wednesday, touting it as the most sophisticated AI model to date. Optimized for software development and AI agent operations, Grok 4.5 was trained using thousands of NVIDIA’s cutting-edge GB300 graphics processing units (GPUs).
The company emphasized its focus on enhancing data quality through improved filtering, deduplication, and assessment processes. SpaceX AI also collaborated with Cursor, an AI coding tool, to refine Grok 4.5’s capabilities.
In a strategic move last month, SpaceX acquired Anisphere, the startup behind Cursor, in a 60 billion USD all-stock deal. This acquisition aims to bolster SpaceX’s position in the enterprise AI development tools market.
Grok 4.5 is now accessible through SpaceX AI’s coding agent, Grok Build, and the SpaceX AI Console developer portal via application programming interface (API). The service is set to roll out in the European Union by mid-July.
Chief Executive Officer (CEO) Musk took to X to claim that Grok 4.5 matches Anthropic’s Opus in performance while offering superior speed, token efficiency, and cost-effectiveness.
Musk also highlighted Grok 4.5’s competitive pricing: 2 USD per million input tokens and 6 USD per million output tokens. For comparison, Anthropic’s Claude Opus 4.8 charges 5 USD per million input tokens and 25 USD per million output tokens, while OpenAI’s GPT-5.6 Luna is priced at 1 USD per million input tokens and 6 USD per million output tokens.
Input tokens represent the data fed into the AI model, such as text or code, while output tokens are the AI-generated responses or code.
OpenAI plans to unveil GPT-5.6 on Friday, following a delay last month due to a U.S. government request for a national security review addressing potential misuse of advanced AI technology.
Musk’s AI venture, xAI, was acquired by SpaceX in February. In May, Musk opted to integrate xAI into SpaceX AI rather than maintain it as a separate entity.