Grok-4.1 with Thinking is xAI flagship model that has climbed rapidly on the LMSYS Arena. Built by Elon Musk team, Grok features real-time access to X/Twitter data, an unfiltered response style, and strong reasoning capabilities. The Thinking variant uses chain-of-thought reasoning for improved accuracy on complex problems.
| Benchmark | Score |
|---|---|
| LMSYS Arena | 1475 |
| Context Window | 128K |
| Price (input/output) | $5/$15 |