2023年Ettore Di Giacinto (Itlyイタリア発・元SUSE Senior Engineer) 発表のLocalAI・OSS OpenAI API互換 Self-Host LLM platform。MIT License・GitHub Star 25k+ (2024年Q4・OSS Self-Host LLM最大級)・Go実装・Docker Compose一発デプロイ・llama.cpp / vLLM / Whisper / Stable Diffusion / TTS統合・Function Calling + Tool use + Vision + Audio + Image gen + Embedding 全Endpoint対応・OpenAI Python/JS SDK 完全互換 (drop-in replacement) で Self-Host AI Stack の業界標準OSS。