### Check for existing issues

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

### What happened?

Hello, I have two questions. First, many new models have been added, such as deepseek-v4, gpt-5.5, and opus-4.7, but they cannot be loaded directly from litellm. I can only get the model I want by manually configuring and restarting. Second, the models used in this way do not have price unit statistics, and these prices are not actually in the model_prices_and_context_window.json file, which causes the actual budget to be exceeded when using them.Looking forward to your reply, thank you.

### Steps to Reproduce

1. 2. 3.

### Relevant log output

```shell

```

### What part of LiteLLM is this about?

_No response_

### What LiteLLM version are you on ?

litellm/litellm:main-v1.83.10-stable

### Twitter / LinkedIn details

_No response_