Apps similar to Mellum include Lumo by Proton, which is open source with a free version. Other options are ChatGPT, DeepSeek, Mistral Vibe and Claude. You're spoiled for choice with AI Chatbots like Mellum: we list more than 100 alternatives for the web, Windows, Mac, Linux and Android.
Pi aka Pi.dev is a minimal terminal coding harness. Adapt pi to your workflows, not the other way around, without having to fork and modify pi internals.
Australia
Jev is TypeSafe’s first public System One Model, optimized for automation. Send Jev structured questions and get typed decisions with probabilities and confidence that your software can act on.
United States
Jules is an asynchronous agent that gets out of your way. It lets you focus on the coding you want to do, meawnwhile picking up all the other random tasks that you rather not do.
United States
AI assistant using hybrid-attention reasoning supports complex, multi-step tasks in multi-agent systems, deep research synthesis, full-stack development, chat, multimodal content, text-to-image generation, privacy settings, distraction-free modes, and cross-device cloud sync.
China
Lightning-fast completions, deep code understanding, and agentic software engineering—right where you work.
France
EU
Tabby is an open-source, self-hosted AI coding assistant. With Tabby, every team can set up its own LLM-powered code completion server with ease.
United States
Terminal interface for developers with agentic multi-step reasoning, natural language commands, multi-file and codebase editing, tool invocation, seamless SSH workflow support, low resource use, and integrated settings sync with graphical environments for flexible operations.
United States
Open R1 is a community-driven, open-source initiative aimed at replicating the advanced AI capabilities of DeepSeek-R1 through transparent methodologies.
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.
Singapore
Comprehensive AI suite for Galaxy devices includes photo, video, and audio editing, generative and side-by-side tools, background noise removal, writing and note-taking assistance, AI-powered briefings, real-time info, content organization, and seamless device integration.
South Korea
A multi-platform, AI-augmented coding companion ensuring secure development with unit test creation.
The Assistant by Kagi combines the top large language models (LLMs) with optional results from Kagi Search, making it the perfect companion for creative, research, and programming tasks.
United States
