Llms.py is a self-hosted, OpenAI-compatible gateway for text, image, and audio generation that functions as a lightweight CLI, server, and open-source alternative to Open WebUI. It supports local and cloud large language models across multiple providers.
The tool enables users to generate content from a single interface, handling over 530 models from 24 providers in three modalities. Text and chat capabilities include a fast, private, ChatGPT-like web UI with tools, MCP, skills, agents, and more than 200 system prompts. Image generation occurs via providers such as Gemini, OpenAI, OpenRouter, Chutes, Z.ai, and Nvidia, integrated directly into the chat and gallery workflow. Audio and speech features cover high-quality text-to-speech using Gemini and OpenRouter models along with voice-to-text input through the microphone.
Generated content can be published with one click to a public gallery at ai.llmspy.org. The gallery supports browsing of images, audio, and playable self-contained projects built by AI, organized by categories and tags with ratings and infinite scroll. It offers free and anonymous publisher accounts that require no email.
Llms.py is delivered as a self-hosted, 100 percent open-source solution.
In the AI & ML space, Llmspy takes a focused approach. It focuses on accessing and using hundreds of local and cloud LLMs for multiple modalities through a single consistent, self-hosted interface. It is built as an open-source project for developers. Llmspy is open source under the BSD-3-Clause license. The product ships for the web, the command line, and API, and it can be self-hosted.
Behind Llmspy is llmspy.org, and the product first shipped in 2025. Development happens publicly on GitHub with 620 stars and 97 commits in the last 90 days. Key capabilities include OpenAI Compatible, 530+ Models, and Image Generation. It exposes integrations via a public API and an MCP server.
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