Elon Musk’s AI company, xAI, has introduced Grok 4.1, a major upgrade that makes the model faster, more stable, and far more accurate. Users on X are already noticing smoother responses and better clarity. The company says with Grok 4.1 Release, they will see reduction in errors in answers and improvement in the performance in real-world tasks.
Grok 4.1 Release Cuts Hallucinations By 3x
One of the biggest improvements in Grok 4.1 is its ability to avoid false or made-up answers.
xAI trained the model with real user queries and tested it on the FActScore benchmark, which checks factual accuracy using biography-based questions.
Key improvements:
- Error rate drops from 12% to 4%
- 3x better accuracy than Grok 4 Fast
- FActScore improves from 9.89% to 2.97%
- Stronger performance in information-seeking tasks
- Better emotional, creative, and collaborative responses
This upgrade makes Grok 4.1 one of the most dependable AI models for factual answers.
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Grok 4.1 Leads Global AI Benchmarks
xAI also tested the model on LMArena before Grok 4.1 Release, which compares the world’s top AI models though Text Arena evaluations.
Key benchmark results:
- 1483 Elo rating in quasarflux mode
- #1 among all non-xAI models
- Tensor mode ranks #2 overall
- Outperforms full-reasoning models from competitors
- Preferred 64.78% of the time in blind comparison tests
xAI quietly rolled out Grok 4.1 between November 1–14, 2025, to evaluate its global performance before full Grok 4.1 release.
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How To Use Elon Musk’s New AI
Using Grok 4.1 is simple. The model is available on the following models after Grok 4.1 release:
- grok.com
- X (formerly Twitter)
- Grok app on iOS and Android
Users can pick “Grok 4.1” directly in the mode selector or choose Auto Mode, which loads the strongest available version.
Grok 4 Fast vs Grok 4.1
| Feature | Grok 4 Fast | Grok 4.1 |
|---|---|---|
| Hallucination Rate | 12% | 4% |
| FActScore | 9.89% | 2.97% |
| Benchmark Rating (Text Arena) | Lower | 1483 Elo (Top) |
| Stability | Moderate | High |
| Speed | Fast | Faster |
| Accuracy | Good | Much Improved |
| Release Timeline | Earlier 2025 | Nov 2025 |
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