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Selection guide5 reviewed entries

Free AI Tools

AI tools organized by free plans, free quotas, and the lowest-cost way to validate a task before paying.

For people who want to try AI first, work with a limited budget, or validate a team use case at low cost.

How to choose

  • A public free plan or quota exists
  • The free tier can complete a small real task
  • Login, region, and quota limits are clear
  • Data remains portable before an upgrade is required

DECISION PATH

Start with one real task, inspect the official details, then compare only the candidates that pass your access and quality checks.

Browse all tools

CURATED RESOURCES

Recommended resources

Each entry links to its detail and official source
DeepSeek

DeepSeek

Cost-effective reasoning and coding models for developers and API use.

DomesticFreemiumOpen source+3

Updated 2026-07-09

Visit official site
Ollama

Ollama

一条命令在本地运行开源大模型的工具。

GlobalFreeLocal deployment+1

Updated 2026-08-28

Visit official site
Hugging Face

Hugging Face

全球最大的开源模型与数据集社区。

GlobalFreemiumModel hub+2

Updated 2026-08-28

Visit official site
L

Learn Prompting

A free open prompt-engineering course from basics through red-team safety.

GlobalFreemiumOpen source+3

Updated 2026-07-09

Visit official site
A

Awesome ChatGPT Prompts

A highly starred GitHub prompt collection with classic role-based templates.

GlobalFreeOpen source+2

Updated 2026-07-09

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EDITORIAL

Read before choosing

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入门

如何选择适合自己的 AI 模型

从任务、延迟、成本、上下文和数据边界五个维度做模型选型。

行业实践

如何比较 AI 工具：从功能表到真实任务

建立可复用的工具评测框架，避免被营销页面牵着走。

行业实践

AI 项目上线前的 20 项检查

一份面向小团队的发布清单，覆盖质量、安全、成本和可回滚性。

Related topics

All topics

Open Source

Open models, frameworks, and self-hosted solutions.

Prompts

Prompt writing, templates, and engineering techniques.

AI Office

Writing, summarization, translation, and everyday productivity.