Open Source #LLM Projects

Sim is an open-source workspace to build, deploy, and orchestrate AI agents and agentic workflows. Visually connect LLMs, tools, and data sources without giving up control.

Open-source AI chat and agent platform with multi-provider support, RAG, plugins, and an agent marketplace — self-hostable ChatGPT alternative.

A self-hostable, GUI-first AI coding agent with editable conversation trees, plugin-based tools, and multi-client sessions.

Onyx is an open-source AI chat and enterprise search platform with RAG that works with every LLM. Bring your own model, connect your tools, and unify all your team's knowledge.

Open-source terminal coding agent with IDE intelligence — LSP renames, live debugging, and 60+ AI providers under an MIT license.

Visually build and deploy AI agents and workflows in Python, with built-in API and MCP servers. MIT-licensed and backed by DataStax.

Open source AI gateway and router that exposes hosted, BYOK, local, and custom models through one OpenAI-compatible API.

Open-source platform for fine-tuning and running LLMs locally — 2x faster training with 70% less VRAM. Supports LoRA, QLoRA, DPO, GRPO.

Open-source Bloomberg-style finance terminal built in C++20/Qt6 with embedded Python, AI agents, and 100+ data connectors.

A self-hosted personal knowledge base that turns markdown notes into an AI-augmented knowledge graph with semantic search and wiki synthesis.

Open LLM app platform with visual workflows, RAG pipeline, agents and model management. Deploy self-hosted, in your VPC, or on Dify Cloud.

Private, in-browser AI summarizer for articles, videos, and PDFs that runs entirely on-device via WebGPU, WebAssembly, or a local Ollama instance.

AI-powered Mac app that privately turns your screen activity into an automatic work journal and daily timeline.

Open-source financial data platform for analysts, quants, and AI agents — a free alternative to Bloomberg Terminal.

Open-source AI agent toolkit with an interactive coding agent CLI, unified multi-provider LLM API, and TUI libraries.