> ## Documentation Index
> Fetch the complete documentation index at: https://docs.athina.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Can I choose which model to use for running evaluations?

Yes, you can specify your own model for running evals. However, keep the following in mind.

* If your evaluation task is complex, use a powerful model like `gpt-4o` or `claude-3-5-sonnet`.

* If your evaluation task is simple, use a smaller model like `gpt-3.5-turbo` or `llama-3-8b`.

Currently, we support all the major public models, as well as custom models.

```python
from athina.evals import LlmEvaluator

LlmEvaluator(model="gpt-4", grading_criteria=grading_criteria).run(response)
```