Choosing a model
The picker above the input lists every available model. Every row carries the same two numbers.
Every row shows
- Price
- per million tokens
- Context
- length
Switch mid-conversation and the thread comes with you.
Kinds
Three kinds worth telling apart
Works at a zero balance
Free models
They cost nothing. Good for drafts and routine work.
Costs more
Reasoning models
They think before answering. Worth it on hard problems, not on simple ones.
Longer context
Long-context models
They matter when you paste a big file or work a long thread.
In practice
Cheap to explore, strong for the hard step
One pattern that holds up:
-
01
Cheap model to explore.
-
Switch
02
Strong model for the hard step.
-
Switch back
03
Cheap again to tidy up.
Price
What the quoted price already includes
On ZeroLog credit
Every price you see already includes the 2% service margin, so what is quoted is what is charged.
On your own key
Usage on your own API key carries no margin at all, because that money never passes through here.