Best xAI Grok Models in 2026
As of September 4, 2026, the top model in best xai grok models on the BenchLM leaderboard is Grok 4.6 with a score of 70.2.
Bottom line: Grok 4.1 is xAI's best — strong on multimodal (98) and knowledge (95) with perfect multilingual. Grok 4.20 adds stronger coding and instruction following.
About this ranking
Last verified: September 4, 2026
All xAI Grok models ranked by benchmark performance.
Unless noted otherwise, ranking surfaces on this page use BenchLM’s provisional leaderboard lane rather than the stricter sourced-only verified leaderboard.
Grok 4.6 leads this ranking with a score of 70.2, followed by Grok 4.5 (68.6) and Grok 4.20 (67). There is meaningful separation between the top models, suggesting genuine performance differences.
All models in this ranking are proprietary. No open-weight alternatives are available for this category.
This ranking uses provisional overall weighted scores from the active scoring formula. For detailed model profiles, click any model name below. To compare two specific models head-to-head, use the "vs #" links.
What changed
Grok 4.1 leads xAI's lineup with perfect multilingual and strong multimodal (98).
Grok 4.20 reasoning variant — leads instruction following (98) and coding (80).
Grok 4.1 Fast speed-optimized with strong math (94) and reasoning (89).
Full Rankings (12 models)
Key Takeaways
The top model is Grok 4.6 by xAI with a BenchAlign v5 score of 70.2 and Supported evidence.
12 models are included in this ranking.
Score in Context
What these scores mean
Models are ranked by the same overall BenchLM score used across all leaderboards. Comparing within xAI's lineup helps identify which model fits your use case and budget.
Known limitations
This page only shows xAI models. Cross-provider comparison requires the overall or category-specific leaderboards. Newer models may have limited benchmark coverage initially.
Explore More
Know when it’s worth switching models
The model to choose, the cheaper alternative, and the release we would wait on.
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