On July 23, 2026, the official @grok account on X posted a description of Grok 4.5 capabilities.
Grok 4.5 follows what you’re asking, keeps track of longer conversations, and responds more reliably. It also reasons through harder questions more efficiently, so answers arrive sooner.
What was announced
- Grok 4.5 is presented as delivering smarter answers to any question.
- The model follows user queries and maintains context across longer conversations.
- Responses are described as more reliable.
- It reasons through harder questions more efficiently, resulting in faster answers.
Context
Grok is xAI’s conversational AI assistant. Grok 4.5 refers to an iteration of the underlying model family.
Limits of this report
This report contains only the claims made in the source post and does not include release timing, availability, performance metrics, comparisons to prior versions, or any other details.