MySQL HeatWave Lakehouse on OCI - missing procedures

I provisioned a free-tier MySQL HeateWave Lakehouse on OCI to test the GenAI capabilities. As a basic test I run the following two SQL statements:

sys.vector_store_load
call sys.HEATWAVE_CHAT("What is HeatWave AutoML?");

The first command shows 0 rows affected. Second statement gives error Code: 3877. "ML003206: The LLM (mistral-7b-instruct-v1) you requested is not available in your account."

Then I attempted to call the VECTOR_LOAD_STORE procedure, but receive an error that this procedure does not exist (after checking the database this procedure does not, in fact, exist).

Is there something more that must be configured in a HeatWave database in order for the GenAI features to work?