04
— the engine
Hear her say it
1×
1.25×
1.5×
2×
Claude
Slower to speak, and harder to shake once it has taken a position. It will hold a thread across an hour without losing the thing you said at the start.
GPT
Quicker off the mark, and quicker to reach for a fact. It will take a half-formed thought and give you three shapes it might be.
Neither is the cheaper one. Both run at full reasoning.
You can change your mind whenever you like.