bolna by voxos-ai

Open-source LLM router & AI cost optimizer. Routes simple prompts to cheap/local models, complex ones to premium — automatically. Drop-in OpenAI-compatible proxy for Claude Code, Codex, Cursor, OpenClaw. Saves 40-70% on AI API costs. Self-hosted, no middleman. Maintained by NadirRouter on GitHub, where it has earned 637 stars from the community.

Fast Audio/Video transcribe using Openai's Whisper and Modal, an hour audio/video file can be transcribed in ~1 minute. Maintained by mharrvic on GitHub, where it has earned 79 stars from the community.

RESTai is an AIaaS (AI as a Service) open-source platform. Supports many public and local LLM suported by Ollama/vLLM/etc. Precise embeddings usage, tuning, analytics etc. Built-in image/audio generation with dynamic loading generators. Live chat deployment. Built-in block based graphical language. Prompt versioning and much more. Maintained by apocas on GitHub, where it has earned 512 stars from the community.