LobeChat

LobeChat is an open-source AI chat framework and web UI for developers, AI researchers, content creators, and automation engineers who want to deploy private ChatGPT and LLM-powered chat apps.

Key capabilities include:

• Multi-provider LLM support across OpenAI, Claude, Gemini, Ollama, and Qwen, making it easier to switch models or run local inference.
• Multimodal interactions, including image understanding via visual model integrations (for example, GPT-4 Vision) and text-to-image generation.
• Voice features with speech-to-text (STT) and text-to-speech (TTS) for hands-free prompting and spoken responses.
• File uploads, knowledge management, and RAG (retrieval-augmented generation) to ground chats on documents and internal context.
• An extensible plugin system for adding capabilities such as real-time information retrieval and custom services.

Pricing: Freemium. Free self-hosted option; cloud plans include Starter ($12.9/month or $118.8/year), Premium ($24.9/month or $238.8/year), and Ultimate ($49.9/month or $478.8/year).

Notable for its open-source foundation and one-click deployment options for private web apps, plus a feature set that goes beyond text-only chat with voice, vision, plugins, and RAG in a single framework.