How to Comply with Model Inventory — CA Frontier AI Safety

SB 53 · CA · Effective Jan 1, 2026

In effect

Maintain an inventory of covered frontier AI models.

Implementation steps

  1. Identify models that meet the law's definition of frontier AI.
  2. Maintain a registry (name, version, use, training compute).
  3. Update when new models are deployed or retired.

Evidence needed

  • Model inventory or registry

Passing criteria

  • All covered models listed
  • Kept current
Penalties: Up to $1M per violation. Enforced by Attorney General.

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