Gemma4 is a very capable and efficient model from the Google open source model family. It is already quite popular.

Source: https://openrouter.ai/google/gemma-4-31b-it https://openrouter.ai/google/gemma-4-26b-a4b-it

We need to update both [model_prices_and_context_window.json](https://github.com/BerriAI/litellm/blob/934ecdca78daf7ec9514efd47df77bf7495c822d/model_prices_and_context_window.json) and [model_prices_and_context_window_backup.json](https://github.com/BerriAI/litellm/blob/934ecdca78daf7ec9514efd47df77bf7495c822d/litellm/model_prices_and_context_window_backup.json) to reflect the new model.