X.ai recently announced publicly Grok 4.5 model on 8 July 2026.
It is billed as the strongest model ever released.
Developed by SpaceXAI recently.
It improves software development and finance tasks.
The model is launched alongside integration into Cursor as a plugin, reported by Bloomberg and Forbes.
Elon Musk called it the "Opus-class" system in an interview.
Pricing is set lower than that of Fable 5 and GPT 5.5, budget‑friendly, according to reports.
The launch follows multiple AI updates across its portfolio this period.