Open-Source Alternative to OpenAI Platform, for Local Models
Hi everyone, we’re a small team, supported by Mozilla, who are working on re-imagining a UI for training, tuning and testing local LLMs. Everything is open source. If you’ve been training your own LLMs or have always wanted to, we’d love for you to play with the tool and give feedback on what the future development experience for LLM engineering could look like.
Open-Source Alternative to OpenAI Platform, for Local Models launched on January 29, 2025 with 93 votes, #395 of 6,142 launches that month and more than 95% of that year's launches. The site was still online in September 2026, 1 year on.
In plain words
This open-source tool provides an alternative to OpenAI's platform for developers working with local language models. Built by a small Mozilla-supported team, it offers a redesigned interface for training, tuning, and testing LLMs on your own hardware. The entire codebase is open source, making it accessible for anyone interested in experimenting with local model development or contributing to the project.
written from the facts on this page · September 2026
From the sources
The open source research environment for AI researchers to seamlessly train, evaluate, and scale models from local hardware to GPU clusters. - transformerlab/transformerlab-app
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