T3 Chat Launch Week officially starts on Monday, but we wanted to get this out first. We just overhauled how credits work on T3 Chat. No more "standard" and "premium" credits. Now you have a "usage" bar that resets every 4 hours. You'll never be more than a few hours away from sending more messages. This change is meant to align your usage with our actual costs. Using a fancy model for a simple question? Costs almost nothing. Using Gemini 3 Pro to analyze giant PDFs in 20-message threads?…