Modal is a serverless container platform with sub-second cold starts and Python-first ergonomics. Phoenix uses Modal as a hosted backend for Python code evaluators that benefit from Modal’s fast container scheduling, generous timeouts, and pay-per-execution pricing.
Configure#
- Sign up at modal.com and create a token pair.
- Add
MODAL_TOKEN_IDandMODAL_TOKEN_SECRETfrom Settings → Sandboxes.
See Settings → Sandboxes → Modal for full configuration details and Sandbox Backends for self-hosting setup.