@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 …
Summary
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.
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Grok 4.5 almost ready to drop?
Some details about Grok 4.5 that have now been confirmed by various reports.
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Grok 4.5 is built on xAI’s V9 foundation model with 1.5T parameters.
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That makes it about 3x larger than v8-small, which currently serves production traffic on X.
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V9 pre-training was completed on May 26, 2026.
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Cursor coding data was added after pre-training through supplemental training.
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Reinforcement learning is still ongoing.
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xAI is planning monthly new-model releases trained from scratch through the end of 2026.
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Grok 4.3 remains the current public API model on Amazon Bedrock.
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