**Model updates:**

* Released `gemini-exp-1121`, an even more powerful experimental Gemini API
model.

**Model updates:**

* Updated the `gemini-1.5-flash-latest` and `gemini-1.5-flash` model aliases
to use `gemini-1.5-flash-002`.

* Change to `top_k` parameter: The `gemini-1.5-flash-002` model supports
`top_k` values between 1 and 41 (exclusive). Values greater than 40 will
be changed to 40.