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GPT4Free

A unified client that reverse-engineers many model providers behind one local API.

GPT4Free (g4f) is an open-source package that aggregates access to numerous LLM and image providers behind a single Python client and a local OpenAI-compatible API and web UI. It is widely used for prototyping and routing across many backends from one interface, and it can be self-hosted as a gateway. Note that it works by interfacing with third-party provider endpoints, so availability of individual providers varies.

Repository

xtekky/gpt4free

Language

Python

What you'd build with it

  • Prototyping against many model providers through one self-hosted, OpenAI-compatible gateway
  • Spinning up a local web UI and API to test multiple backends without separate SDKs
  • Routing requests across providers from a single client during early experimentation

Tags

gatewayopenai-compatibleself-hostedproxy