Lightning AI (free GPU Studio hours)

15 Lightning credits per month (equivalent to roughly 80 T4 GPU hours or 22 GPU hours by different sources — accounts don't fully agree), plus 1 Studio that can run free 24/7

The free quota resets monthly; credit consumption speed varies by GPU model — T4 is most economical, while faster GPUs like A10G/L40S burn through the same credits faster. CPU Studios are free long-term with no time limit. Some sources describe GPU Studios as 'free for the first 4 hours, then billed,' while others describe it as '80 GPU hours per month' — both descriptions coexist across third-party sites, so check your account panel for the actual terms. Requires phone verification. Includes 10GB of Drive storage plus 100GB of Studio storage. Converted at official GPU rates, the monthly free quota is worth roughly $12.

⚠️A cloud VS Code-style development environment plus GPU, suited to running your own training/inference scripts rather than calling a hosted model API. The free always-on CPU option is more practical than the raw GPU quota for long-running lightweight services, such as a personal agent backend.