Open Source

The 29 most recent open source briefs, newest first.

November 3, 2026 · Open Source

Show HN: EchoChain to see what happens when LLMs play telephone

What happened A developer released echoChain, an open source tool that chains LLM responses in a loop to measure information retention across multiple model exchanges. Each model converts the previou...
October 28, 2026 · Open Source

Show HN: Aroha – signed, shrinking permissions for AI agents, checked offline

What happened ArohaLabs released Aroha Protocol as an open source SDK on GitHub. The project provides signed, attenuating permissions for AI agents that can be verified offline. The published code sn...
October 27, 2026 · Open Source

Show HN: AgentTrust – Zero-trust security and human approvals for AI agents

What happened Autonomous AI agents built on frameworks such as LangChain, CrewAI, AutoGen, and Anthropic Tool Use expose enterprises to what the project describes as unrestricted AI side effects, inc...
October 22, 2026 · Open Source

Show HN: Unterm – A pure-Rust terminal for humans and AI agents

What happened Unterm is an open source terminal emulator written in pure Rust, released on GitHub and available for macOS, Linux, and Windows. It is designed for both human users and AI agents, expos...
October 21, 2026 · Open Source

Show HN: Lights-on software factory boilerplate for Claude Code

What happened A developer has released open source boilerplate for running a lights on software factory using Claude Code, targeting teams that want automated, orchestrated AI coding workflows. The s...
October 19, 2026 · Open Source

Show HN: Put AI to work across your company

What happened Vstorm released AgenticOS, a self hosted agent layer licensed under Apache 2.0. It lets teams build, run, and govern AI agents on their own infrastructure. The package includes a chat i...
October 13, 2026 · Open Source

Show HN: Plimsoll, a self-hosted sandbox for code your AI agent writes

What happened Plimsoll is a self hosted, open source sandbox service for executing untrusted code produced by AI agents. Each execution result reports which isolation boundary was active during that...
October 12, 2026 · Open Source

Show HN: Tutor, a self-hosted LLM tutor that teaches you your books or docs

What happened A developer released Tutor, a self hosted, locally running LLM based tool designed to improve retention of books and documentation. The tool extracts concepts from uploaded materials, t...
October 6, 2026 · Open Source

Show HN: Baloo, self-hosted AI code review for GitHub

What happened Baloo is a newly released open source GitHub App that performs AI driven pull request review. It installs directly on repositories, reads PR diffs along with relevant project context, a...
October 4, 2026 · Open Source

Meta’s Muse Lets You Build Your Own AI Gadgets

What happened Meta released Muse Gadgets, an open source ESP32 firmware and Linux SDK designed to let developers build custom hardware peripherals for its Muse AI assistant. Supported peripheral type...
September 22, 2026 · Open Source

Show HN: jevals – replacing LLM judges with typed Jev decisions

What happened Openlayer AI released jevals, an open source library on GitHub that replaces LLM as judge evaluation with what it calls Jev style typed decision models. Rather than sending each evaluat...
September 17, 2026 · Open Source

Show HN: Thurbox – A tmux-based TUI and CLI for local AI agent orchestration

What happened Thurbox is an open source tool published on GitHub that lets users run multiple coding agents simultaneously inside a single terminal. Supported agents include Claude Code, Codex, openc...
September 16, 2026 · Open Source

Show HN: An open-source control plane for your company's AI agents

What happened AgenticOS is a self hosted, open source control plane for enterprise AI agents, released on GitHub. It consolidates agent building, execution, and governance into a single platform. Sta...
September 11, 2026 · Open Source

Show HN: Ambient Context v1.0.0 (Missing context for AI assistants)

What happened Ambient Context v1.0.0 is a signed macOS menu bar app that uses the macOS Accessibility API to capture on screen text into a markdown file. The tool maintains a running written record o...
September 1, 2026 · Open Source

Cancel your closed-source AI subscriptions: GLM 5.3 Flash is here

What happened Z.ai released GLM 5.3 Flash, an open weights mixture of experts model carrying 320 billion total parameters with 18 billion active at inference time. The model was previously tested ano...
August 28, 2026 · Open Source

CEO fired developers to make room for AI. Developers create open source AI CEO

What happened A team called SenteLabsAI released OpenExecutive, an open source AI system on GitHub that simulates a virtual executive team. The project presents a single coherent executive persona ba...
August 19, 2026 · Open Source

Show HN: A benchmark for AI agent guardrails that caught my own plugin

What happened A developer released Holdline, an open source benchmark designed to evaluate guardrails for AI agents that perform write actions. The tool scores any guard expressed as a function that...
August 16, 2026 · Open Source

Show HN: Dictata – Local Whisper dictation with LLM cleanup

What happened Dictata is a newly released open source tool for Windows that provides system wide voice dictation running entirely on device. Written in native Rust, it uses whisper.cpp for transcript...
August 14, 2026 · Open Source

Show HN: Chatlens – Search and browse your ChatGPT and Claude chats offline

What happened A developer released Chatlens, a single self contained HTML file roughly 85KB in size that lets users search and browse their exported ChatGPT and Claude conversation histories entirely...
August 13, 2026 · Open Source

Google DeepMind open-sources WeatherNext after hurricane forecast breakthrough

What happened Google DeepMind has open sourced the code and model weights for WeatherNext, a weather forecasting AI that, according to research published in Nature, predicted hurricane tracks one day...
August 13, 2026 · Open Source

Show HN: Frontier.fast – Help push the frontier of LLM speed forward

What happened Frontier.fast is a newly launched open arena for benchmarking LLM inference speed. Contributors submit kernel or engine patches against a pinned configuration, defined by one model, one...
August 8, 2026 · Open Source

Show HN: Selvedge – an append-only log of what your AI agent already rejected

What happened Selvedge is an open source MCP server released on GitHub and PyPI that maintains an append only log of reasoning produced by AI coding agents. It records not just what changes were made...
August 6, 2026 · Open Source

Show HN: AI gateway open source integrated with cursor and open router

What happened RouterFuel v0.6.0 is an open source async Rust gateway that routes requests to 330+ language models across providers including OpenAI, Anthropic, Google, Meta, and Mistral, plus the ful...
August 4, 2026 · Open Source

Show HN: OpenTalking – Privately deployable real-time AI avatar

What happened A project called OpenTalking has been released on GitHub by datascale ai as an open source framework for building real time AI avatar systems. It describes itself as industrial grade an...
August 4, 2026 · Open Source

agent-regress-cli 0.1.7

What happened Version 0.1.7 of agent regress cli has been published to PyPI as an open source tool for statistical regression testing of LLM agents. Rather than comparing single runs, it computes a p...