Offers
One day a week, a render that costs more than four dollars is wiped back to zero. The window is Monday, midnight to midnight, in UTC. The reset itself happens on Tuesday.
A render started during the Monday window is in the challenge. The charge is the GPU seconds that render actually used, at your pack rate. If that charge is above $4, it is reset to $0 on Tuesday. A render at $4 or under is billed as usual.
The homepage banner counts down to Monday 00:00 UTC. When the window opens, the same banner counts down the 24 hours that are left. After Tuesday 00:00 UTC it counts down to the next Monday.
Storage, movie encoding, and GPU time you already bought are not part of this offer. Encoding a movie was already free. Cancelling a live render still stops after the current frame, and frames that never started are still not charged.
The reset is a billing adjustment on Tuesday. During Monday the job page can still show the time used. On Tuesday that charge, if it was above $4, is set to zero.