Model Details

Domain:

Task:

Visual question answering

Character recognition OCR

Image captioning

Quantitative reasoning

Model Access:

API access

AI Tools Usage

This model is commonly used behind the scenes in AI tools.

Introduction

Grok 4 is the most intelligent model in the world. It includes native tool use and real-time search integration, and is available now to SuperGrok and Premium+ subscribers, as well as through the xAI API. We are also introducing a new SuperGrok Heavy tier with access to Grok 4 Heavy - the most powerful version of Grok 4.

Benchmarking

FLOPs5e+26

Notes: We think that RL relative to pre-compute is between our estimate for o3 (10% of pre-training) and the 100% implied by this slide in the launch ( https://archive.is/f0vJU ). Assuming the same pre-training as Grok 3 (also implied by that slide, and much more consistent) and that Grok 3 used a tenth as much RL, we get: 2 * (grok3/1.1) in the high case (rl is 10% of grok 3, so grok3/1.1 is grok3 precompute, and in this case twice that is grok 4) 1.1 * (grok3/1.01) in the low case The geometric mean is (rounded to one sig fig): 5e26