### Check for existing issues

- [x] I have searched the existing issues and checked that my issue is not a duplicate.

### What happened?

LiteLLM does not currently recognize the new Groq Compound models.

The following models are available through the official Groq API:

- groq/compound - groq/compound-mini

Calling these models directly through the Groq REST API works correctly.

However, when using LiteLLM with the model `groq/compound-mini`, requests fail with:

GroqException: The model `compound-mini` does not exist or you do not have access to it.

I also checked LiteLLM's model metadata registry:

from litellm import model_cost

print([m for m in model_cost if "compound" in m.lower()])

Output:

[]

This suggests that the newly released Groq Compound models are missing from LiteLLM's model metadata/provider registration.

Expected behavior:

LiteLLM should recognize and correctly route:

- groq/compound - groq/compound-mini

through the Groq provider.

Versions LiteLLM: 1.81.10 Provider: Groq Model: groq/compound-mini Operating System: Windows 11 Python version: Python 3.14.4

LiteLLM installation Installed as a dependency of aider-chat (uv tool).

I verified that:

The Gr…