Introducing Grok 4.5
Anysphere, Wednesday, July 8th, 2026
Cursor released Grok 4.5, a mixture-of-experts model built for long-running, tool-heavy tasks beyond software engineering.
Cursor announced Grok 4.5, a mixture-of-experts model developed jointly with SpaceXAI and described as its most intelligent model yet and the first built for more than software engineering.
The model targets difficult, long-running tasks requiring creative tool use across domains like software engineering, data science, and finance.
It was trained on trillions of tokens from Cursor's codebase with reinforcement learning on challenging problems, and is available across desktop, web, iOS, CLI, and SDK. Base pricing is $2/M input tokens and $6/M output tokens, with subscribers getting doubled usage during the first week.