llm-chat-completions-server 0.1a0
Simon Willison Simon Willison
A new plugin called llm-chat-completions-server version 0.1a0 was released that lets users run a local server exposing LLM models via an OpenAI Chat Completions compatible API endpoint. The server runs on port 9001 and uses the content-addressable logs feature from LLM 0.32rc1 to deduplicate conversation messages through hashing. This allows existing OpenAI-compatible clients to work with locally installed language models without modification.
Why it matters
Release: llm-chat-completions-server 0.1a0 A key goal of the new content-addressable logs in LLM 0.32rc1 was being able to support OpenAI Chat Completion style requests where each incoming message extends the previous conversation, like this: curl http://localhost:8002/v1/chat/completions \ -H 'Content-Type: application/json' \ -d '{ "model": "qwen3.5-4b", "messages": [ {"role": "user", "content": "Capital of France?"}, {"role": "assistant", "content": "Paris."}, {"role": "user", "content": "Germany?"} ] }' Here the conversation state is tracked by the client, so each of these requests gets longer and longer. The new schema design in LLM is designed to de-duplicate these using hashes of the individual message parts. To test that out, I built this plugin: uv tool install llm --pre llm install llm-chat-completions-server llm chat-completions-server -p 9001 Running this starts a localhost server on port 9001 that exposes your full collection of LLM models (from any plugins you have instal
