serverless-modal
Modal Cloud GPU — Training & Inference
Task: $ARGUMENTS
Overview
Modal is a serverless GPU cloud. Key advantages over SSH-based platforms (vast.ai, remote servers):
- Zero config: no SSH, no Docker, no port forwarding. Write Python →
modal run→ done. - Auto scale-to-zero: billing stops the instant your code finishes. No idle instances.
- Local-first: run
modal runfrom your laptop. Code, data, and results stay local; only the GPU function runs remotely. - Reproducible environments: dependencies declared in code via
modal.Image, not system-level packages.
Best for: Users without a local GPU who need to debug CUDA code, run small-scale tests, or iterate quickly on experiments. The $5 free tier (no card) is enough for code debugging; $30 (with card) covers most small-scale experiment runs.
Trade-off: Modal costs more per GPU-hour than vast.ai or Lightning for some GPU tiers, but eliminates setup time and idle billing, often making it cheaper for short/medium workloads. For long training runs (>4 hours), consider vast.ai for lower $/hr.
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