Grok 4.1 Fast (Reasoning) — benchmark results
Grok 4.1 Fast evaluated with reasoning enabled. Provider: xAI. Released 2025-11-20. Access: API.
Unified ELO 1662 ± 9, rank #338 of 1776 rated models, from 422 benchmark results.
Strongest benchmark results
| Benchmark | Score | Metric | Percentile |
|---|---|---|---|
| EuroEval Spanish Knowledge | 88.33 | Knowledge Average Score (%) | 99.5 |
| EuroEval Portuguese Knowledge | 90.99 | Knowledge Average Score (%) | 99.2 |
| UGI Leaderboard | 63.24 | UGI Score | 99.2 |
| EuroEval Dutch NLU - DBRD | 93.57 | Sentiment classification Score (%) | 98.4 |
| EuroEval French Knowledge | 84.95 | Knowledge Average Score (%) | 98.3 |
| EuroEval Estonian Common Sense Reasoning | 82.16 | Common Sense Reasoning Average Score (%) | 98.2 |
| EuroEval Italian Knowledge | 86.88 | Knowledge Average Score (%) | 98 |
| EuroEval Ukrainian Knowledge | 88.88 | Knowledge Average Score (%) | 97.8 |
| EuroEval French NLU - Allocine | 96.79 | Sentiment classification Score (%) | 97.7 |
| EuroEval English NLU | 75.92 | NLU Average Score (%) | 97.6 |
| EuroEval English NLU - ScaLA EN | 68.02 | Linguistic acceptability Score (%) | 97.6 |
| EuroEval Latvian Knowledge | 84.18 | Knowledge Average Score (%) | 97.6 |
Interactive version: theaggregate.ai/model?slug=grok-4-1-fast-reasoning · How the rankings work · Data refreshed daily, snapshot 2026-07-22.