SpaceXAI has officially launched Grok 4.5, its latest artificial intelligence model designed for coding, software development and advanced agentic tasks. The company says the new model delivers faster performance, improved efficiency and lower operating costs as it intensifies competition with AI giants OpenAI and Anthropic.
According to SpaceXAI, Grok 4.5 was trained using tens of thousands of NVIDIA GB300 GPUs, with a strong emphasis on high-quality datasets through advanced filtering, deduplication and quality scoring techniques. The company claims these improvements enable the model to generate more reliable code while handling complex reasoning and multi-step agentic workflows with greater accuracy.
The launch comes shortly after SpaceX completed its $60 billion all-stock acquisition of Anysphere, the company behind the popular AI coding assistant Cursor. As part of the collaboration, Cursor confirmed that it has partnered with SpaceXAI to train Grok 4.5, further strengthening the model’s integration into professional software development tools.
Grok 4.5 is now available through Grok Build, SpaceXAI’s AI coding platform integrated with Cursor, as well as via the company’s developer console using API access. The company added that the model is expected to become available across the European Union by mid-July.
On pricing, SpaceXAI has positioned Grok 4.5 aggressively against its rivals. The model costs $2 per million input tokens and $6 per million output tokens, making it significantly cheaper than Anthropic’s Claude Opus 4.8, which charges $5 and $25 respectively. OpenAI’s upcoming GPT-5.6 Luna is expected to cost $1 per million input tokens and $6 per million output tokens, making the competition even tighter in the enterprise AI market.
SpaceX CEO Elon Musk described Grok 4.5 as an “Opus-class model, but faster, more token-efficient and lower cost,” highlighting its focus on coding performance and enterprise adoption. The launch also reflects the company’s broader AI strategy after Musk announced that xAI had been fully integrated into SpaceXAI, ending its existence as a separate company.
Industry experts believe Grok 4.5 could become a serious contender in the rapidly expanding AI coding market, especially as businesses increasingly adopt AI-powered software development tools. With OpenAI also preparing to publicly launch its GPT-5.6 model, the battle among leading AI companies is expected to intensify over the coming months.
Disclaimer: This news is based on publicly available reports. Some details may change as more official information becomes available.
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