Best Free AI Tools

Llama

Free

Meta open model family

Meta's open-weight model family, a key foundation for local deployment and open ecosystems.

秘塔 AI 搜索

Free

Chinese AI search engine

AI search and research tool for Chinese users with answer aggregation and citations.

Gemma

Free

Google open model family

Google's lightweight open models for developer experiments and local deployment.

LM Studio

Free

Desktop local LLM tool

Download, run and manage local LLMs from a desktop app without coding.

腾讯元宝

Free

Tencent Hunyuan AI assistant

Tencent's Chinese AI assistant for Q&A, reading, writing and Tencent ecosystem content.

Dify

Open source

Open-source LLM app platform

Visual platform for building chatbots, workflows, RAG and agent apps.

n8n

Open source

Open-source automation workflow platform

Node-based automation platform for connecting APIs, databases and AI services.

Ollama

Open source

Run open models locally

Run open models such as Llama, Qwen and Gemma locally with simple commands.

Qwen

Open source

Alibaba Qwen open model family

Open model family covering language, code, multimodal and reasoning models.

Stable Diffusion

Open source

Open image generation model ecosystem

Widely used open image generation ecosystem with local deployment and many web UIs.

AutoGen

Open source

Microsoft multi-agent framework

Open-source framework for multi-agent conversations and task automation.

AUTOMATIC1111

Open source

Stable Diffusion Web UI

Classic local Stable Diffusion web UI with a rich plugin ecosystem.

ComfyUI

Open source

Node-based Stable Diffusion workflows

Local image and video generation workflow tool for advanced model orchestration.

CrewAI

Open source

Multi-agent collaboration framework

Organizes multiple AI agents with roles and tasks for complex workflows.

LangChain

Open source

LLM application framework

Popular framework for RAG, agents, tool calling and LLM workflows.

llama.cpp

Open source

High-performance local LLM inference

C/C++ local inference project supporting GGUF models and multi-platform deployment.

LlamaIndex

Open source

Data-to-LLM RAG framework

Connects documents, databases and APIs to build retrieval-augmented generation apps.

Midscene.js

Open source

AI-powered browser automation

Natural-language browser UI automation and end-to-end testing.

ChatGPT

Freemium

General AI assistant and multimodal workspace

OpenAI's general AI service for chat, writing, coding, learning, image understanding and everyday work.

Claude

Freemium

Long-context writing, analysis and coding assistant

Anthropic's AI assistant for long document analysis, writing, reasoning, coding collaboration and reliable enterprise workflows.

DeepSeek

Freemium

Chinese LLMs and cost-effective APIs

DeepSeek provides Chinese AI models and APIs for chat, reasoning and coding, with strong Chinese support and developer-friendly pricing.

Cursor

Freemium

AI-native code editor

An AI IDE for developers with codebase Q&A, automatic edits, multi-file changes and agentic coding workflows.

Perplexity

Freemium

AI answer engine with cited sources

Combines web search and LLM answers for research, source discovery, competitor checks and news tracking.

Runway

Freemium

AI video generation and creative suite

Text-to-video, image-to-video, editing and creative generation tools for shorts, ads and visual experiments.

Hugging Face

Freemium

Open AI models, datasets and app community

A global open AI community for model hosting, datasets, Spaces, inference APIs and machine learning collaboration.

Gemini

Freemium

Google multimodal AI assistant

Google's AI assistant and model entry point for search, productivity, image understanding and ecosystem integration.

Kimi

Freemium

Chinese long-context AI assistant

Moonshot AI's Chinese assistant for long documents, web reading and office work.

豆包

Freemium

ByteDance AI assistant

AI assistant for Chinese users covering chat, writing, images and voice.

Bolt.new

Freemium

AI full-stack development in the browser

StackBlitz AI coding environment for generating, running and deploying apps in the browser.

ElevenLabs

Freemium

High-quality AI voice generation

Text-to-speech, voice cloning, dubbing and multilingual voice APIs.

Gamma

Freemium

AI presentation generator

Generates presentations, documents and webpages from prompts for fast visual content.

即梦 AI

Freemium

ByteDance image and video generation

Image, video and design generation tool for Chinese creators.

可灵 AI

Freemium

Chinese AI video generation

Kuaishou AI video platform for Chinese creative videos and image-to-video workflows.

Lovable

Freemium

AI full-stack app builder

Conversational web app builder for MVPs, prototypes and non-engineers.

Mistral AI

Freemium

European open and commercial model platform

Provides high-performance models, APIs, Le Chat and an open model ecosystem.

OpenRouter

Freemium

Unified API gateway for many models

A unified API for many LLM providers, useful for model routing and cost optimization.

SiliconFlow

Freemium

Chinese model inference API platform

Model inference API platform for open and Chinese models, friendly to Chinese developers.

通义千问

Freemium

Alibaba Qwen AI assistant

Alibaba's Qwen models and assistant across chat, productivity, developer APIs and multimodal capabilities.

v0

Freemium

Vercel AI UI generator

Generates React/Next.js UI from prompts for quick prototypes and frontend components.

Windsurf

Freemium

Agentic IDE by Codeium

AI coding IDE focused on Cascade workflows, codebase understanding and automatic edits.

Adobe Firefly

Freemium

Adobe creative AI

Generative image, text effect and design assistance inside the Adobe ecosystem.

Canva AI

Freemium

AI creation tools inside Canva

Generate images, copy, presentations and marketing assets inside Canva.

Copy.ai

Freemium

Sales and marketing copy AI

Helps teams generate sales emails, marketing content and GTM workflows.

Coze

Freemium

Low-code AI bot and agent platform

A low-code AI bot and agent platform with plugins, workflows, knowledge bases and multi-channel publishing.

fal.ai

Freemium

Generative media inference platform

Fast API platform for image, video and audio generation models.

Fireflies.ai

Freemium

AI meeting assistant

Records, transcribes and summarizes meetings, syncing to CRM and collaboration tools.

FLUX

Freemium

High-quality open image models

Black Forest Labs image model family for high-quality visual generation and developer integration.

Grammarly

Freemium

English writing and grammar AI

English grammar correction, tone adjustment, writing suggestions and team style guidance.

Grok

Freemium

Realtime AI assistant in the X ecosystem

xAI's chat and search assistant focused on realtime information and social content understanding.

Groq

Freemium

Fast LLM inference API

Known for low-latency inference for realtime chat, voice and agent applications.

Ideogram

Freemium

AI image generation with strong text rendering

Useful for posters, logos, typography and visuals that include text.

Leonardo AI

Freemium

AI image tool for games and design

Image generation for game assets, characters, concept art and brand visuals.

Luma Dream Machine

Freemium

AI video and 3D creative tool

Luma's video generation and 3D creation tools for high-quality shots and visual experiments.

Manus

Freemium

General task AI agent

General agent for complex tasks such as research, planning and automation.

Obsidian

Freemium

Local-first knowledge base

Markdown notes and knowledge base tool that can integrate AI workflows through plugins.

Otter.ai

Freemium

Meeting transcription and summaries

Transcribes meetings and creates summaries and action items, especially for English meetings.

Phind

Freemium

AI search for developers

AI search engine for developers, useful for technical questions, code examples and documentation.

Pika

Freemium

AI video generation tool

Generates short videos from text or images for creative, animated and social content.

Poe

Freemium

Multi-model AI chat hub

Quora's multi-model chat platform for using many models and bots from one place.

QuillBot

Freemium

Paraphrasing and polishing tool

Useful for English paraphrasing, grammar correction, summaries and citation help.

Replicate

Freemium

Model inference and deployment platform

Hosts open models with APIs, popular for image, video, audio and ML prototypes.

Replit

Freemium

Cloud IDE and AI agent

Online development environment with AI coding, deployment and collaboration features.

讯飞星火

Freemium

iFlytek Spark Chinese AI assistant

iFlytek's Chinese AI assistant for office, education, voice and industry scenarios.

Suno

Freemium

Generate songs and music from text

Generates complete songs from lyrics and style prompts for music ideas, short video soundtracks and demos.

Udio

Freemium

AI music generation platform

Generates songs and music clips from prompts for music ideas and content soundtracks.

文心一言

Freemium

Baidu ERNIE AI assistant

Baidu's ERNIE assistant for Chinese search, writing and Baidu ecosystem integration.

You.com

Freemium

AI search and productivity platform

AI search platform combining search, chat, writing and research workflows.

Zapier AI

Freemium

AI inside automation workflows

Adds AI into Zapier automations connecting SaaS apps, forms, email and internal systems.

智谱清言

Freemium

GLM model chat assistant

Zhipu AI's Chinese LLM assistant for chat, writing, coding and open platform usage.