Open-source alternatives to ChatGPT
Free, open-source, downloadable replacements for ChatGPT
Agentic coding assistant in your terminal — Claude Code is an agentic coding tool that lives in your terminal, understands your codebase, and helps you code faster by executing routine tasks, explaining complex code, and handling git workflows - all through natural language commands.
alternative to Cursor、GitHub Copilot、ChatGPT
Light cross-platform AI chat assistant for many models — ✨ Zero-config AI chat assistant. No API key needed — sign up and instantly chat with GPT-5, Claude 4, Gemini 2.5, DeepSeek & 100+ top models. Pay-as-you-go saves you more. Available on Web, iOS, macOS, Android, Linux, Windows.
alternative to ChatGPT
AI assistant for academic reading and writing — 为GPT/GLM等LLM大语言模型提供实用化交互接口，特别优化论文阅读/润色/写作体验，模块化设计，支持自定义快捷按钮&函数插件，支持Python和C++等项目剖析&自译解功能，PDF/LaTex论文翻译&总结功能，支持并行问询多种LLM模型，支持chatglm3等本地模型。接入通义千问, deepseekcoder, 讯飞星火, 文心一言, llama2, rwkv, claude2, moss等。
alternative to ChatGPT
Terminal coding agent for open models — A coding agent for open models like Kimi K3 and GLM 5.3
alternative to ChatGPT
Free multi-model AI API aggregation toolkit — The official gpt4free repository | various collection of powerful language models | opus 4.6 gpt 5.3 kimi 2.5 deepseek v3.2 gemini 3
alternative to ChatGPT
Desktop AI studio for multiple LLM providers — AI productivity studio with smart chat, autonomous agents, and 300+ assistants. Unified access to frontier LLMs
alternative to ChatGPT
Super AI assistant and agent harness — Open-source super AI assistant & Agent Harness. Plans tasks, runs tools and skills, self-evolves with memory and knowledge. Multi-model, multi-channel. Lightweight, extensible, one-line install. (formerly chatgpt-on-wechat)
alternative to ChatGPT
Local-first personal AI super intelligence — OpenHuman is an open source personal AI for Mac, Windows and Linux — local-first memory, agent orchestration, and deep research.
alternative to ChatGPT、Perplexity
Deployable autonomous AI personal assistant runtime — Fast, small, and fully autonomous AI personal assistant infrastructure, any OS, any platform — deploy anywhere, swap anything 🦀
alternative to ChatGPT、Microsoft Copilot
Terminal AI coding agent — ⌥ Coding agent with the IDE wired in
alternative to Cursor、GitHub Copilot、ChatGPT
Autonomous AI research agent with citations — An autonomous agent that conducts deep research on any data using any LLM providers
alternative to Perplexity、ChatGPT
One OpenAI-compatible API over free LLM provider tiers — 7.4 billion tokens per month. 34 free LLM providers. 635 free model endpoints. All behind one /v1 endpoint, plus any custom OpenAI-compatible endpoint. Smart routing, automatic failover, encrypted keys. Personal experimentation only.
alternative to ChatGPT
Crawl site for custom GPT knowledge — Crawl a site to generate knowledge files to create your own custom GPT from a URL
alternative to ChatGPT
'%3E%3Cpath d='M2 30 30 2v28Z' fill='%2317181c'/%3E%3C/g%3E%3Ccircle cx='23' cy='9' r='2.5' fill='%232de1c2'/%3E%3C/svg%3E){kind=small}
Codex Dream Skin for AI apps — Codex Dream Skin
alternative to ChatGPT
AI coding assistant in your terminal — GitHub Copilot CLI brings the power of Copilot coding agent directly to your terminal.
alternative to ChatGPT
Dashboard for Hermes AI agents — Web dashboard for Hermes Agent — multi-platform AI chat, session management, scheduled jobs, usage analytics
alternative to ChatGPT
Local private multi-LLM search and Q&A — FreeAskInternet is a completely free, PRIVATE and LOCALLY running search aggregator & answer generate using MULTI LLMs, without GPU needed. The user can ask a question and the system will make a multi engine search and combine the search result to LLM and generate the answer based on search results. It's all FREE to use.
alternative to ChatGPT
Self-hosted Bing AI chat web interface — 用 Vue3 和 Go 搭建的微软 New Bing 演示站点，拥有一致的 UI 体验，支持 ChatGPT 提示词，国内可用。
alternative to ChatGPT
On-device private AI chat with local language models — An app that brings language models directly to your phone.
alternative to ChatGPT
Local multi-model tool for prototypes, slides, and PDFs — Open-source Claude Design alternative. One-click import your Claude Code / Codex API key. Prompt → prototype / slides / PDF. Multi-model (Claude, GPT, Gemini, Kimi, GLM, Ollama). BYOK, local-first, MIT.
alternative to ChatGPT、Notion、Figma
Fast local LLM inference engine — Fast, flexible LLM inference
alternative to ChatGPT
Convert codebase into single LLM prompt with tree and token count — A CLI tool to convert your codebase into a single LLM prompt with source tree, prompt templating, and token counting.
Graphical interface for AI agents — ClawX is a desktop app that provides a graphical interface for OpenClaw AI agents. It turns CLI-based AI orchestration into a desktop experience without using the terminal. China website is https://clawx.com.cn.
alternative to ChatGPT
AI powered Kubernetes Assistant — AI powered Kubernetes Assistant
alternative to ChatGPT
Token-efficient AI agent — OpenSquilla — Token-Efficient AI Agent with same budget, higher intelligence density
alternative to ChatGPT
Multi-model collaboration workflow engine — 多模型协作工作流引擎 — /ccg:go 一个命令，AI 自动分析意图、选择策略、编排 Codex + Gemini + Claude 协作执行
Feishu integration with GPT models — 🎒 飞书 ×（GPT-4 + GPT-4V + DALL·E-3 + Whisper）= 飞一般的工作体验 🚀 语音对话、角色扮演、多话题讨论、图片创作、表格分析、文档导出 🚀
alternative to ChatGPT
Run optimized local LLMs on your GPU/NPU — Lemonade helps users discover and run local AI apps by serving optimized LLMs right from their own GPUs and NPUs. Join our discord: https://discord.gg/5xXzkMu8Zk
alternative to ChatGPT
Web app for collaborating with LLMs — 📃 A better UX for chat, writing content, and coding with LLMs.
alternative to ChatGPT
Cross-platform desktop AI assistant — 5ire is a cross-platform desktop AI assistant, MCP client. It compatible with major service providers, supports local knowledge base and tools via model context protocol servers .
alternative to ChatGPT、Claude、TypingMind
Use ChatGPT inside Visual Studio Code — A VSCode extension that allows you to use ChatGPT
alternative to ChatGPT
Low-resource offline private translation model server — Offline translation model server with low resource consumption, fast speed, and private deployment capability. 低资源占用速度快可私有部署的离线翻译模型服务器
alternative to ChatGPT
AI tool to translate between natural language and SQL — SQL Translator is a tool for converting natural language queries into SQL code using artificial intelligence. This project is 100% free and open source.
alternative to ChatGPT
Manage multiple Codex agents across workspaces — An app to monitor the (Codex) situation
alternative to ChatGPT
ChatGPT and Bing AI client with CLI support — A client implementation for ChatGPT and Bing AI. Available as a Node.js module, REST API server, and CLI app.
alternative to ChatGPT
Unofficial ChatGPT desktop client for Linux — Unofficial ChatGPT desktop app for Linux (formerly the Codex app), built locally from OpenAI’s official macOS app. Includes Chat, Work, and Codex. Packages for Debian/Ubuntu (.deb), Fedora/openSUSE (.rpm), Arch (pacman), Nix/NixOS, and AppImage, with Wayland and X11 support.
alternative to ChatGPT
Fast local AI engine for Apple Silicon — The fastest local AI engine for Apple Silicon. 4.2x faster than Ollama, 0.08s cached TTFT, 100% tool calling. 17 tool parsers, prompt cache, reasoning separation, cloud routing. Drop-in OpenAI replacement. Works with Claude Code, Cursor, Aider.
alternative to ChatGPT
Chat with a local LLM using files on your Mac — A native macOS app that allows users to chat with a local LLM that can respond with information from files, folders and websites on your Mac without installing any other software. Powered by llama.cpp.
alternative to ChatGPT
Private offline AI coding agent with local models — Open source inference server that runs the best local models for your hardware, plugged into the agent you already use. Works with Pi, OpenCode, Hermes, OpenClaw, Codex, Claude Code, Oh My Pi, and Cline.
alternative to ChatGPT
Auto-register and manage accounts for many AI platforms — Auto-register & manage accounts for ChatGPT, Cursor, Kiro, Grok, Windsurf, Trae & 13+ AI platforms · Protocol/browser dual-mode · Plugin-based · One-click Mac/Windows desktop app
alternative to ChatGPT、Cursor、Windsurf
AI system for long novel creation — 面向长篇小说创作的 AI Native 开源系统，用 Agent、世界观、写法引擎、RAG 和整本生产工作流，帮助新手从一句灵感走到完整小说。AI-native engine for end-to-end novel creation — from idea to full chapters, with structured planning, worldbuilding, and agent-driven workflows.
alternative to ChatGPT
Native Swift app for Core ML image generation — Swift app demonstrating Core ML Stable Diffusion
alternative to ChatGPT
Local AI engine and API platform — Local AI API Platform
alternative to ChatGPT
Semantic search for documents — Multi-tool for semantic search
alternative to ChatGPT
Chat privately with local offline LLMs — This codebase is for a React and Electron-based app that executes the FreedomGPT LLM locally (offline and private) on Mac and Windows using a chat-based interface
alternative to ChatGPT
Local and remote LLM chat app — Maid is a free and open source application for interfacing with llama.cpp models locally, and with Anthropic, DeepSeek, Ollama, Mistral and OpenAI models remotely.
alternative to ChatGPT、Lumo、Google Gemini
Intelligent English input method for Mac/Windows — hallelujahIM(哈利路亚 英文输入法) is an intelligent English input method with auto-suggestions and spell check features.
React app for Gemini Live API — A react-based starter app for using the Live API over websockets with Gemini
alternative to ChatGPT
AI book and document translator — Translate full-length books and documents with Ollama, OpenAI-compatible, Gemini, Mistral, DeepSeek, Poe or OpenRouter. Preserves formatting. Resumes where you left off. No file size limits.
alternative to ChatGPT
On-premise ChatGPT replacement with strict data privacy — Bionic is sovereign AI for the enterprise — ChatGPT-like AI that runs on-premise and can securely work with your sensitive data and systems.
alternative to ChatGPT
OpenAI API adapter for multiple LLM platforms — OpenAI 接口接入适配，支持千帆大模型平台、讯飞星火大模型、腾讯混元以及MiniMax、Deep-Seek，等兼容OpenAI接口，仅单可执行文件，配置超级简单，一键部署，开箱即用. Seamlessly integrate with OpenAI and compatible APIs using a single executable for quick setup and deployment.
alternative to ChatGPT
Open-source AI assistant for generating research reports — Open source alternative to Gemini Deep Research. Generate reports with AI based on search results.
alternative to ChatGPT
Let LLMs watch and understand videos locally — Let Claude (or any LLM) actually watch a video — scene-aware, deduplicated frames + transcript, from a URL or local file. Runs locally, MIT.
alternative to ChatGPT
AI personal tutor powered by Llama — An AI personal tutor built with Llama 3.1
alternative to ChatGPT
Agentic AI coding chat in your terminal — ✨ Agentic chat experience in your terminal. Build applications using natural language.
alternative to GitHub Copilot、Cursor、ChatGPT
Native macOS chat app for open-source AI models — Making the community's best AI chat models available to everyone.
alternative to ChatGPT
Local RAG document chat with LLMs and TTS — Text-To-Speech, RAG, and LLMs. All local!
alternative to ChatGPT、ElevenLabs
Desktop AI assistant with GPT support — Desktop AI Assistant powered by GPT-5, GPT-4, o1, o3, Gemini, Claude, Ollama, DeepSeek, Perplexity, Grok, Bielik, chat, vision, voice, RAG, image and video generation, agents, tools, MCP, plugins, speech synthesis and recognition, web search, memory, presets, assistants,and more. Linux, Windows, Mac
alternative to ChatGPT
Elegant AI chat client with multiple workspaces. — AI as Workspace - An elegant AI chat client. Full-featured, lightweight. Support multiple workspaces, plugin system, cross-platform, local first + real-time cloud sync, Artifacts, MCP | 更好的 AI 客户端
alternative to ChatGPT
Private local AI chat and document assistant — Private and secure AI tools for everyone's productivity.
alternative to ChatGPT
Desktop AI agent workspace — Open-source desktop AI agent for tools, files, knowledge, workflows, and real deliverables.
alternative to ChatGPT
Spicy AI professor companion for reading papers — An AI companion for reading papers.
alternative to ChatGPT
CLI that turns plain English into shell commands — Copilot for your terminal
alternative to GitHub Copilot、ChatGPT
Xiaohongshu AI content creation and media workbench — 小红书 AI 工作台｜小红书采集、评论区下载、素材库、选题、AI写作、小红书全域解决方案，开箱即用，一键安装，小红书AI工作台，自媒体素材库，AI写作+图片自动编排，小红书版OpenClaw、自媒体资产底座+AI工作台，支持小红书图文+小红书评论区下载、小红书AI创作工具、自媒体版WorkBuddy、抖音、小红书爬虫数据采集
alternative to ChatGPT
Local LLM API server for Apple Silicon — High-performance OpenAI and Anthropic compatible LLM inference server for Apple Silicon. Native MLX, continuous batching, multimodal models, MCP tool calling, and Claude Code support.
alternative to ChatGPT
Desktop AI agent with memory and autonomous goal pursuit — 🦭 会记忆、能持续推进目标、会动态编排多 Agent 的跨端桌面 AI 助手，也可服务化常驻 NAS / 云端 | A cross-device desktop AI agent with memory, autonomous goals, dynamic workflows, and headless deployment
alternative to ChatGPT
Lightweight AI chat UI and desktop client — Open CoreUI - A rewritten Open WebUI in Rust, significantly reducing memory and resource usage, requiring no dependency services, no Docker, with both a server version and a Tauri-based desktop client. (formerly Open WebUI Lite)
alternative to ChatGPT
Local LLM desktop app for macOS — A cosy home for your LLMs.
alternative to ChatGPT
Local-first AI assistant with tools and memory — Row-Bot - Personal AI Sovereignty. A local-first AI assistant with integrated tools, a personal knowledge graph, voice, vision, shell, browser automation, scheduled tasks, health tracking, and messaging channels. Run locally via Ollama or add opt-in cloud models. Your data stays on your machine.
alternative to ChatGPT
Local AI app and inference engine for agents. — Local AI app and inference engine for agents. Run open-weight LLMs locally — private, 100% offline on your computer. Join our Discord: https://discord.com/invite/8wGSsvmg4V
alternative to ChatGPT
LLaMA2 Chatbot app — LLaMA v2 Chatbot
alternative to ChatGPT
Multi-model AI coding agent for the command line — An open-source AI agent that is compatible with multiple LLM models
Offline AI art, chat, and voice companion — Offline inference engine for art, real-time voice conversations, LLM powered chatbots and automated workflows
alternative to ChatGPT、Midjourney、ElevenLabs
Local LLM document translator — 文档（小说、论文、字幕）翻译工具（支持 pdf/word/excel/json/epub/srt...）Document (Novel, Thesis, Subtitle) Translation Tool (Supports pdf/word/excel/json/epub/srt...)
Select-on-page Chrome AI agent for editable office files — Paw Work - selection-first web agent for Chrome: select on the live page, describe the outcome, take away an editable office file. BYOK, sandboxed, no server.
alternative to ChatGPT
Chat client for local GPT4All language models — gpt4all-j chat
alternative to ChatGPT
Multi-LLM chat app for Android — Chat app for Android that supports answers from multiple LLMs at once. Bring your own API key AI client. Supports OpenAI, Anthropic, Google, and Ollama. Designed with Material3 & Compose.
alternative to ChatGPT
AI-powered programming assistant for the command line — Cougar CLI - An AI programming agent for the command line
alternative to GitHub Copilot、Cursor、ChatGPT
AI Assistant that learns your preferences and acts across apps. — An AI Assistant that’s easy to setup, does your work 24/7, knows your preferences and gets better over time.
alternative to ChatGPT
Chat assistant linking open visual AI models — something like visual-chatgpt, 文心一言的开源版
alternative to ChatGPT
Open-source AI workspace for agents, MCP and workflow automation — Formerly Better Chatbot. Navigator is an open-source AI workspace for agents, MCP and workflow automation.
Voice + Vision AI assistant that answers questions about any application in context and au — Voice + Vision powered AI assistant that answers questions about any application, in context and in audio.
alternative to ChatGPT
Desktop AI research assistant for scientists — An AI co-scientist running on your desktop. Claude Science but better.
alternative to ChatGPT
Local private AI assistant extension — NativeMind: Your fully private, open-source, on-device AI assistant
alternative to ChatGPT
Cross-platform app for running offline AI models on Android/iOS/PC — A cross-platform Flutter app that runs uncensored, 100% offline open-source AI models (GGUF) directly on your Android, iOS, or PC. No cloud, no filters, total privacy.
alternative to ChatGPT
Mobile intelligent assistant with multiple LLMs — AI Group is a powerful mobile intelligent assistant application that integrates multiple large language models (LLMs) and AI services, providing you with a convenient intelligent interaction experience.
alternative to ChatGPT
Next.js WebUI conversation assistant
alternative to ChatGPT
CLI for unrestricted AI model access — Open-source CLI for unrestricted AI - Access powerful models without censorship
alternative to ChatGPT
Gemini AI assistant extension for Chrome with image and web context — Gemini Nexus 是一款面向浏览器场景的 AI 助手扩展，集成 Gemini Web、Gemini API 与 OpenAI 兼容接口，支持网页上下文、图像处理、工具调用和 MCP 浏览器控制。
alternative to ChatGPT
Cross-platform AI chat for local and cloud models — A unified cross-platform AI client supporting seamless transitions between standard cloud APIs and on-device, offline execution of custom and uncensored language models.
alternative to ChatGPT
Multi-agent second brain with skills and memory — 🤖 MateClaw — Your second brain with Multi-Agent Orchestration, MCP Protocol, Skills & Memory, Dream, and Multi-Channel Support. Built on Spring AI Alibaba.
Friendly CLI coding assistant — An open-source coding helper. Very friendly!
alternative to GitHub Copilot、Cursor、ChatGPT