Grok 4.5 即将发布，基于 1.5T 参数 V9 模型

Grok 4.5 almost ready to drop?

Some details about Grok 4.5 that have now been confirmed by various reports.

• Grok 4.5 is built on xAI’s V9 foundation model with 1.5T parameters.
• That makes it about 3x larger than v8-small, which currently serves production traffic on X.
• V9 pre-training was completed on May 26, 2026.
• Cursor coding data was added after pre-training through supplemental training.
• Reinforcement learning is still ongoing.
• xAI is planning monthly new-model releases trained from scratch through the end of 2026.
• Grok 4.3 remains the current public API model on Amazon Bedrock.