AI X Tool is a Chinese-first directory for discovering AI providers, models, APIs, tools, agents, workflows, learning resources, and benchmarks.

How should I choose an AI tool?

Start with the task, then evaluate capability, price, region, Chinese support, update date, and official links on each resource detail page.

Are the listed prices and capabilities guaranteed?

Listings are maintained from public information and editorial review. Confirm current pricing, limits, and availability on the linked official website before adoption.

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Resource comparison

Compare the same catalog fields side by side. Missing evidence is shown as unverified.

Selection note

A highlighted field is evidence for one decision dimension, not a universal winner. Confirm current pricing, limits, and availability on the official website.

Compare the same catalog fields side by side. Missing evidence is shown as unverified.
Dimension	Grok 4	Grok 4 Heavy
Type	Model	Model
Region	Overseas	Overseas
Pricing	Paid	Paid
Pricing detail	Unverified	Unverified
Access	Login required	Login required
Free quota	Unverified	Unverified
Platforms	Unverified	Unverified
Chinese support	Yes	No
Open source	Unverified	No
Best for	开发者	开发者知识工作者
Not for	Unverified	Unverified
Typical tasks	实时问答推理	复杂推理研究
Strengths	Unverified	Unverified
Limitations	Unverified	Unverified
Context length	256K tokens	256K tokens
Capabilities	Multimodal Reasoning Coding Tool use Long context	Multimodal Reasoning Coding Tool use Long context
Model API price	USD 3 / 15 /1M tokens	Unverified
Verification	Unverified	Unverified
Source	Unverified	Unverified

Compared resources

Compared fields

Type

Region

Pricing

Pricing detail

Access

Free quota

Platforms

Chinese support

Open source

Best for

Not for

Typical tasks

Strengths

Limitations

Context length

Capabilities

Model API price

Verification

Source