update clients

Author: alexzhang13

README.md

@@ -95,7 +95,7 @@ modal setup   # authenticate account
 
 
 ### Model Providers
-We currently support most major clients (OpenAI, Anthropic), as well as the router platforms (OpenRouter, Portkey, LiteLLM). For local models, we recommend using vLLM.
+We currently support most major clients (OpenAI, Anthropic), as well as the router platforms (OpenRouter, Portkey, LiteLLM). For local models, we recommend using vLLM (which interfaces with the [OpenAI client](https://github.com/alexzhang13/rlm/blob/main/rlm/clients/openai.py)). To view or add support for more clients, start by looking at [`rlm/clients/`](https://github.com/alexzhang13/rlm/tree/main/rlm/clients).
 
 ## Relevant Reading
 * **[Dec '25]** [Recursive Language Models arXiv](https://arxiv.org/abs/2512.24601)