grok-4.5

Grok-4.5 is XAI’s next-generation, closed-source flagship large model specifically designed for deep code engineering and software agents. Grok-4.5 was trained on a supercomputing cluster comprising tens of thousands of NVIDIA GB300 GPUs and deeply integrates Cursor’s engineering-level prior knowledge at the underlying level. Rather than following the traditional approach of simply stacking up benchmark scores, the model focuses its core breakthroughs on “high throughput, extremely low overall costs, and real-world deployment of long-term tasks.” It boasts exceptionally powerful capabilities in code writing, autonomous refactoring, and cross-software ecosystem execution, making it a super-engine tailored for production-level DevOps and automated knowledge workflows.

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Core Capabilities

"Opus-level" IQ and disruptive speed: The model precisely targets industry-leading flagship models (such as the Claude Opus series). While delivering deep logical reasoning, financial-grade data modeling, and complex Excel architecture design across multiple tables that rival cutting-edge flagship models, its response and throughput speeds significantly outperform conventional heavyweight models, achieving "flagship IQ with lightning-fast response."

Unparalleled "token-saving rate": Grok-4.5 features revolutionary data deduplication and operator optimization tailored specifically for agent and code scenarios. In real-world DeepSWE code engineering and long-chain automation task tests, Grok-4.5 demonstrates an astonishingly high token efficiency—when generating engineering solutions of the same complexity, the number of output tokens it consumes can be reduced by up to 4.2 times compared to traditional models, fundamentally cutting off the source of enterprises’ “hidden token bill explosions.”

Deep symbiosis with Cursor and long-term agent resilience: Grok-4.5 incorporates the top-tier software engineering DNA of Cursor, valued at $60 billion. Specifically designed for “single-prompt application development,” Grok-4.5 can perform uninterrupted, fully autonomous cross-file debugging lasting several hours in real terminal environments and codebases, automatically scan and fix hidden cybersecurity vulnerabilities, and exhibits exceptional “reflection-replanning” resilience when encountering obstacles in intermediate steps.

500K-token context window and all-scenario tool integration: By default, Grok-4.5 provides an ultra-long, high-fidelity context window of 500,000 tokens. Not only can it effortlessly handle massive project codebases, but it also seamlessly integrates as the default primary engine into Grok Build. It can autonomously write rigorous technical documentation in Word and automatically generate complex topology diagrams in PowerPoint, bridging the final gap in enterprise cross-software collaboration.