A family of lightweight, state-of-the art open models built from the same research and technology that we used to create the Gemini models.



Apertus is described as 'As a fully open language model, Apertus allows researchers, professionals and enthusiasts to build upon the model and adapt it to their specific needs, as well as to inspect any part of the training process' and is a AI Chatbot in the ai tools & services category. There are more than 100 alternatives to Apertus for a variety of platforms, including Web-based, Mac, Windows, Android and Linux apps. The best Apertus alternative is ChatGPT, which is free. Other great apps like Apertus are Lumo by Proton, DeepSeek, Mistral Vibe and OpenClaw.
A family of lightweight, state-of-the art open models built from the same research and technology that we used to create the Gemini models.



Khoj is an open-source AI second brain that learns from your notes (Obsidian, EMACS), documents, and has access to the internet. It can replace your search engine, help you with reading papers, and get you transparent, fast answers.




Unleash the power of artificial intelligence right at your fingertips with Chatbox, the versatile client application seamlessly integrated across all major platforms – Windows, Mac, Linux, Web, and iOS.


Leo is an AI-powered intelligent assistant, built right into the browser. Leo can answer questions, help accomplish tasks, and more.

AI assistant supports complex math, coding, image understanding, and reasoning with up to 128k token processing, short and long chain-of-thought tasks, visual and text input, accurate benchmarks, self-learning ability, and reinforcement learning for improvement.




Provides AI-powered writing tools, image generation, Genmoji, and memory movies; enhances Siri with deeper context and actions; integrates ChatGPT for complex tasks; prioritizes on-device processing for privacy; unifies features across Apple devices with Private Cloud Compute.




Z.ai is an AI-powered conversational platform developed by Zhipu AI, designed to provide intelligent, natural, and context-aware interactions. It leverages Zhipu’s advanced large language models (GLM series) to support tasks such as answering questions, generating content...




Open R1 is a community-driven, open-source initiative aimed at replicating the advanced AI capabilities of DeepSeek-R1 through transparent methodologies.
Ask questions to your documents without an internet connection, using the power of LLMs. 100% private, no data leaves your execution environment at any point. You can ingest documents and ask questions without an internet connection!

LlamaGPT is a chatbot that provides a ChatGPT-like experience, with no data leaving your device.



MiroThinker is an open-source search agent model, built for tool-augmented reasoning and real-world information seeking, aiming to match the deep research experience of OpenAI Deep Research and Gemini Deep Research.


Moshi is an innovative AI chatbot with advanced voice recognition, real-time interaction, and dual audio streams, setting up a new standard for voice-based chatbots.



