Glossary

Each word links here from its first use on a docs page.

Word	What it means
text	what you ask about, sent in the request's state field
question	what you ask about a text, with its options
option	one possible answer to a question
probability	the number decisio gives each option; a question's probabilities add up to 1
top probability	the probability of the likeliest option; certificates and thresholds use it
yes/no question	a question with two options, yes and no, whose answer is the probability of yes; the wire format calls its type noul
task	a question you ask again and again, taught from your labelled examples
intent head	a small layer a task can learn from your examples, for a question with many options; the model itself does not change
calibration error	the average gap between the probability an answer states and how often answers like it were right; lower is better
error target	the share of certified answers you allow to be wrong
certified answer	an answer decisio stands behind at your error target
threshold	the top probability at or above which answers are certified
drift	traffic moving away from the examples a task was certified on
base	the model decisio serves; Gemma 4 31B by default
abstain	decisio declines to answer when no option is likely enough
serving setup	the model, the engine, the GPU and the settings a certificate was made on
CPU stand-in	a small model decisio serves on any machine for development, with every route of the real server; its answers are not the default model's

What next

• Teach a task: tasks, certified answers and drift, in practice.
• The HTTP API: every field of a request and an answer.