Resource detail

Grok 4 Heavy

xAI's flagship for parallel reasoning and hard tasks.

OverseasPaid

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At a glance

grok-4-heavy

Pricing

Paid

Access

Platforms

Web

Chinese support

Last checked

2026-08-29

Popularity

87/100

Model background

Closed weights

Grok 4 Heavy uses parallel candidates and larger reasoning budgets, extending realtime-information models into deep research.

Why it mattered

Grok 4 Heavy uses parallel candidates and larger reasoning budgets, extending realtime-information models into deep research.

Official linkhttps://docs.x.ai/docs/models

Model capabilities

Multimodal ✓Reasoning ✓Coding ✓Tool use ✓Long context ✓

Context length

256K tokens

Provider

xai

Typical use

Complex reasoningResearch

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