xAI releases Grok 4.5
xAI releases Grok 4.5 for coding, agent tasks and knowledge work, with text and image inputs and a 500,000-token context window; it is available through Grok Build, Cursor and the xAI API at launch.
What happened
Event details
xAI released Grok 4.5 on July 16, 2026 for coding, agent tasks and knowledge work. The model accepts text and image inputs, supports a 500,000-token context window and uses grok-4.5 as its API model ID. It launched in Grok Build, all Cursor plans and the SpaceXAI API; the API Console launch was initially unavailable to users in the European Union.
Assessment
Why it matters
A published model record with a documented capability or availability change.
Availability
Access notes
Available through Grok Build, all Cursor plans and the SpaceXAI API at launch; the API Console launch was initially unavailable in the European Union.