Compare · sources checked 2026-10-24
Modal is a Python-first serverless platform with a mature train-to-serve loop and a $30/mo free tier. Teams look for a Modal alternative when they want to call inference over the OpenAI wire format instead of adopting a Python SDK — and when they want a GPU they can also rent by the second.
| Capability | runaii | Modal |
|---|---|---|
| Serverless per-token APIs | Available: Growing catalog | Available: Python-first |
| OpenAI-compatible | Available: + Anthropic | Partial: SDK-first |
| Dedicated Blackwell GPUs | Available: B200/B300/GB300 | Available: B200/H100 |
| Training → deploy loop | Partial: Demo (beta) | Available: Full loop |
| Root-access GPU VMs | Available: Per-second | Available: Sandboxes |
| Free tier | Available: $5 credits | Available: $30/mo |
| Per-GPU pages | Available: /gpus + here | Available: Glossary |
| Status + changelog | Available: /status | Partial |
Moving an OpenAI SDK client is a base-URL and model-id change — the migration walkthrough is one diff. A first request is in the quickstart, and the rates are on /pricing.
The full 7-way table, with every provider's source, is on /compare.
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