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+# Free AI APIs
+
+There are APIs offering free access to AI APIs via reverse proxy, and one of the major players, compatible with LibreChat, is ChimeraGPT.
+
+Feel free to check out the others, but I haven't personally tested them: [Free AI APIs](https://github.com/NovaOSS/free-ai-apis)
+
+### ChimeraGPT
+
+Since ChimeraGPT works with LibreChat, and offers Llama2 along with OpenAI models, let's start with that one: [ChimeraGPT](https://discord.gg/chimeragpt)
+
+> ⚠️ Never trust 3rd parties. Use at your own risk of privacy loss. Your data may be used for AI training at best or for nefarious reasons at worst; this is true in all cases, even with official endpoints: never give an LLM sensitive/identifying information. If something is free, you are the product. If errors arise, they are more likely to be due to the 3rd party, and not this project, as I test the official endpoints first and foremost.
+
+You will get your API key from the discord server. The instructions are pretty clear when you join so I won't repeat them.
+
+Once you have the API key, you should adjust your .env file like this:
+
+```bash
+##########################
+# OpenAI Endpoint: 
+##########################
+
+OPENAI_API_KEY=your-chimera-api-key
+# Reverse proxy settings for OpenAI: 
+OPENAI_REVERSE_PROXY=https://chimeragpt.adventblocks.cc/v1/chat/completions
+
+# OPENAI_MODELS=gpt-3.5-turbo,gpt-3.5-turbo-16k,gpt-3.5-turbo-0301,text-davinci-003,gpt-4,gpt-4-0314,gpt-4-0613
+```
+
+**Note:** The `OPENAI_MODELS` variable is commented out so that the server can fetch chimeragpt/v1/api/models for all available models. Uncomment and adjust if you wish to specify which exact models you want to use.
+
+It's worth noting that not all models listed by their API will work, with or without this project. The exact URL may also change, just make sure you include `/v1/chat/completions` in the reverse proxy URL if it ever changes.
+
+You can set `OPENAI_API_KEY=user_provided` if you would like the user to add their own Chimera API key, just be sure you specify the models with `OPENAI_MODELS` in this case since they won't be able to be fetched without an admin set API key.
+
+## That's it! You're all set. 🎉
+
+### Here's me using Llama2 via ChimeraGPT
+
+![Screenshot 2023-07-23 201709](https://github.com/danny-avila/LibreChat/assets/110412045/f3ce0226-152c-4d53-9a6e-6370156b0735)
+
+### Plugins also work with this reverse proxy (OpenAI models). [More info on plugins here](https://docs.librechat.ai/features/plugins/introduction.html)
+![Screenshot 2023-07-23 202426](https://github.com/danny-avila/LibreChat/assets/110412045/45d0f79f-0963-49c0-9d1c-c292d1c25588)