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Best LLM Chat Tools

LLM chat tools are the front door to modern AI — from general assistants to specialist chat UIs. Scan ranked options here, then open the compare page for a compact decision table.

Open compare table Related: Best Coding Agent Tools · Best RAG Tools · Best Open Source AI Tools · Best AI Image Generation Tools

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1,960 tools · sorted by quality

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ChatALL

Concurrently chat with ChatGPT, Bing Chat, Bard, Alpaca, Vicuna, Claude, ChatGLM, MOSS, 讯飞星火, 文心一言 and more, discover the best answe...

Score 100 GitHub stars 16,502 Open source
train-llm-from-scratch

A straightforward method for training your LLM, from downloading data to generating text.

Score 100 GitHub stars 10,915 Open source
codex-chatgpt-web

Use ChatGPT Web (including Pro) as a native model in Codex — with context, tools, streaming and images, without using Codex quota.

Score 100 GitHub stars 10,967 Open source
MOSS

An open-source, tool-augmented conversational language model from Fudan University

Score 100 GitHub stars 12,253 Open source
chat-ui

The open source codebase powering HuggingChat

Score 100 GitHub stars 10,964 Open source
book-to-skill

Turn any technical book PDF into a Claude Code skill — ready to study, reference, and use while you work.

Score 100 GitHub stars 32,190 Open source
llm-engineer-toolkit

A curated list of 120+ LLM libraries category wise.

Score 100 GitHub stars 10,867 Open source
Claude-Code-Game-Studios

Turn Claude Code into a full game dev studio — 49 AI agents, 72 workflow skills, and a complete coordination system mirroring real studio hi...

Score 100 GitHub stars 25,404 Open source
Easydict

一个简洁优雅的词典翻译 macOS App。开箱即用,支持离线 OCR 识别,支持有道词典,🍎 苹果系统词典,🍎 苹果系统翻译,OpenAI,Gemini,DeepL,Google...

Score 100 GitHub stars 14,737 Open source
CL4R1T4S

LEAKED SYSTEM PROMPTS FOR CHATGPT, CLAUDE, GEMINI, GROK, PERPLEXITY, CURSOR, LOVABLE, REPLIT, AND MORE! - AI SYSTEMS TRANSPARENCY FOR ALL!...

Score 100 GitHub stars 50,142 Open source
ludwig

Low-code framework for building custom LLMs, neural networks, and other AI models

Score 100 GitHub stars 11,765 Open source
9router

Unlimited FREE AI coding. Connect Claude Code, Codex, Cursor, Cline, Copilot, Antigravity to FREE Claude/GPT/Gemini via 40+ providers. Auto-...

Score 100 GitHub stars 29,636 Open source
ruflo

🌊 The original agent harness. Deploy intelligent multi-player swarms, coordinate autonomous workflows, and build conversational AI systems....

Score 100 GitHub stars 73,039 Open source
awesome-llm-apps

100+ AI Agents, Agent Skills and RAG Apps - Free and Open Source.

Score 100 GitHub stars 139,356 Open source
anything-llm

Stop renting your intelligence. Own it with AnythingLLM. Everything you need for a powerful local-first agent experience

Score 100 GitHub stars 66,387 Open source
oh-my-claudecode

Teams-first Multi-agent orchestration for Claude Code

Score 100 GitHub stars 39,297 Open source
LLMs-from-scratch

Implement a ChatGPT-like LLM in PyTorch from scratch, step by step

Score 100 GitHub stars 105,407 Open source
TencentDB-Agent-Memory

TencentDB Agent Memory is a team-level memory hub for AI Agents — turning conversations, docs, and code into four reusable memory assets (Ch...

Score 100 GitHub stars 27,101 Open source
CLIProxyAPI

Wrap Antigravity, ChatGPT Codex, Claude Code, Grok Build, Muse Code, Davin as an OpenAI/Gemini/Claude/Codex compatible API service, allowing...

Score 100 GitHub stars 52,727 Open source
new-api

A unified AI model hub for aggregation & distribution. It supports cross-converting various LLMs into OpenAI-compatible, Claude-compatible,...

Score 100 GitHub stars 48,825 Open source
OmniRoute

Never stop coding. Free MIT AI gateway: one endpoint, 359 providers (150+ free), 1200+ models Kimi, Claude, GPT, Gemini, GLM, DeepSeek, Mini...

Score 100 GitHub stars 69,540 Open source
LangBot

Production-grade platform for building agentic IM bots - 生产级多平台智能机器人开发平台/ Agent、知识库编排、插件系统 / Bots for Discord / Sl...

Score 100 GitHub stars 17,963 Open source
context7

Context7 Platform -- Up-to-date code documentation for LLMs and AI code editors

Score 100 GitHub stars 62,341 Open source
langchain4j

LangChain4j is an idiomatic, open-source Java library for building LLM-powered applications on the JVM. It offers a unified API over popular...

Score 100 GitHub stars 13,139 Open source
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