SpaceXAI introduces AI model Grok 4.5 – EU users have to wait

The takeover of the Cursor developer tool by SpaceXAI (formerly xAI) and the associated close collaboration are beginning to bear fruit: Grok 4.5, a new flagship AI model, was presented that is intended to score particularly well in the areas of coding, agentic tasks and knowledge work. At the same time, it is priced in the affordable range of flagship models. However, EU users still have to be patient. Presumably due to legal requirements, the release for the EU area has been postponed until mid-July, as SpaceXAI reports.

According to the manufacturer, Grok 4.5 was trained on tens of thousands of Nvidia GB300 GPUs, with a particular focus on data filtering, deduplication and quality assessment. The training primarily prepared it for multi-stage software engineering tasks with automated and model-based evaluation. The model runs at around 80 tokens per second – comparable to “flash” models from other providers – and is said to offer twice the token efficiency for the same tasks compared to leading models.

Significantly cheaper than other top models

Grok 4.5 should not only be able to take on difficult and long-term tasks, but also be more broadly positioned, for example for work in the legal or financial sector. In addition, cybersecurity skills are said to have been further developed. The latter could meet the wishes of the US government, which recently slowed down the new top AI models from OpenAI and Anthropic due to security concerns.

In benchmarks, the new model is mostly positioned behind Anthropic’s Fable, but in some areas it performs better than the top models Opus 4.8 (Anthropic) and GPT-5.5 (OpenAI). At 2 US dollars per million input tokens and 6 US dollars per million output tokens, it is, above all, significantly cheaper with a similarly high level of performance: It is well below GPT-5.5 ($5/$30) and below Claude Opus 4.8 ($5/$25).

Free trial period

The model is now available in Grok Build (formerly Grok CLI), in Cursor (in all subscriptions), and via the xAI API console. Grok Build and Cursor have free access for a limited time.

SpaceXAI and Cursor announced a few weeks ago that SpaceXAI was taking over the manufacturer of the popular developer tool for $60 billion.

(mki)