Expired50% confidenceOpinionExact time
Grok 4.5's lead on SWE Marathon has been attributed to xAI's access to a massive amount of real-world programming data obtained through its acquisition of Cursor.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/13/2026
First Seen
Valid until: 10/11/2026(expired)
Sources
Related Claims
UnverifiedGrok 4.5 is from xAI and is positioned as a high-end model.72% similarUnverifiedxAI officially stated that Grok 4.5 is the most powerful model to date and the first version in the Grok series positioned as a general-purpose capability model that goes beyond software engineering.71% similarUnverifiedGrok 4.5's technical foundation is the V9 architecture with 1.5 trillion parameters, and it incorporates Cursor's programming data for reinforcement training.69% similarUnverifiedGrok 4.1 was officially released, with the company claiming its overall capabilities have surpassed multiple competing products.66% similarVerifiedGrok 4.5 was trained on tens of thousands of NVIDIA GB300 GPUs, supports an ultra-long context of up to 500,000 tokens, and natively supports visual input.64% similar
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