Grok 4.1
Parameters
Undisclosed
Context Length
2M
Modality
Multimodal
Architecture
Undisclosed
License
Proprietary
Release Date
17 Nov 2025
Knowledge Cutoff
Nov 2024
API Pricing (per 1M)
Input: $0.20 · Output: $0.50
Evaluation Benchmarks
Rank
#49
| Benchmark | Score | Rank |
|---|---|---|
General Text | auto 1465 Standard 1459 | 43 47 |
Web Development | auto 1211 | 103 |
Rankings
Overall Rank
#49
Coding Rank
#145
About Grok 4.1
Grok 4.1 brings significant improvements to real-world usability with exceptional creative, emotional, and collaborative capabilities. Optimized for style, personality, helpfulness, and alignment using frontier agentic reasoning models as reward models. Achieves #1 on LMArena Text Leaderboard with 1483 Elo (thinking mode) and #2 with 1465 Elo (non-thinking), surpassing all other models. Features 2M context window, reduced hallucination rate (12.09% → 4.22% on production queries), and state-of-the-art emotional intelligence (1586 Elo on EQ-Bench). Available in both reasoning and fast non-reasoning modes through API.
Technical Specifications
Architecture specifications are undisclosed for proprietary models.
Resources
About Grok 4
xAI's frontier intelligence models trained with reinforcement learning at unprecedented scale using the 200,000 GPU Colossus cluster. Grok 4 series demonstrates state-of-the-art performance in reasoning, coding, and multimodal understanding with native tool use capabilities. Features real-time search integration across X and the web, advanced reasoning through scaled RL training, and industry-leading performance on academic benchmarks. Designed for both immediate responses and extended thinking modes with vision capabilities.