Grok 4 Heavy

Name: Grok 4 Heavy
Author: xAI

Chat modelGrok 4

Grok 4 Heavy

Release date: 2025-07-10Updated: 2025-07-10Views: 1,788

Live demoGitHubHugging FaceCompare

Parameters

No data

Context length

128K

Multilingual

Supported

Reasoning ability

4/5

Grok 4 Heavy is an AI model published by xAI, released on 2025-07-10, for Chat model, and 128K context length, with a 100.00 score on AIME2025.

Data sourced primarily from official releases (GitHub, Hugging Face, papers), then benchmark leaderboards, then third-party evaluators. Learn about our data methodology

Grok 4 Heavy

Model basics

Reasoning traces

Supported

Thinking modes

Standard Mode (Default)Thinking Level · Deep

Context length

128K tokens

Max output length

8K tokens

Model type

Chat model

Modality (in / out)

No data

Release date

2025-07-10

Model file size

No data

MoE architecture

Total params / Active params

No data / Not applicable

Knowledge cutoff

No data

Grok 4 Heavy

Open source & experience

Code license

Proprietary

Weights license

Proprietary

GitHub repo

N/A

Hugging Face

N/A

Live demo

N/A

Grok 4 Heavy

Official resources

Paper

N/A

DataLearnerAI blog

N/A

Grok 4 Heavy

API details

API speed

2/5

No public API pricing yet.

Grok 4 Heavy

Benchmark Results

Grok 4 Heavy currently shows benchmark results led by AIME2025 (1 / 106, score 100), GPQA Diamond (57 / 270, score 88.90), HLE (49 / 185, score 44.40). This page also consolidates core specs, context limits, and API pricing so you can evaluate the model from benchmark results and deployment constraints together.