Grok 4.5
Summary
xAI has released Grok 4.5, a new version of their AI model, as announced on Cursor's blog.
Similar Articles
Grok 4.6
xAI releases Grok 4.6, a frontier model focused on long-running agents and ambitious interactive/visual work, matching GPT-5.6 Sol on the Artificial Analysis Intelligence Index and available in Cursor and Grok Build.
Grok on X: "Grok 4.5 is now available across web, X, and the iOS and Android apps.
Grok 4.5 is now available across web, X, and iOS and Android apps, marking a significant update to the AI assistant.
@rohanpaul_ai: Grok 4.5 almost ready to drop? Some details about Grok 4.5 that have now been confirmed by various reports. - Grok 4.5 …
Reports confirm details about xAI's upcoming Grok 4.5 model, built on a 1.5T parameter V9 foundation model, with pre-training completed in May 2026 and ongoing reinforcement learning.
Grok 4.6
Grok 4.6 introduces frontier intelligence capabilities for long-running AI agents, as highlighted in a Product Hunt post.
SpaceXAI releases Grok 4.5, which Elon describes as an ‘Opus-class model’
SpaceXAI has released Grok 4.5, an Opus-class model that offers faster speed, higher token efficiency, and lower cost compared to competitors like Anthropic's Opus 4.7 and OpenAI's models.