Hamilton Hamilton AI Sublimit — AI Endorsement Analysis

Last verified: March 20, 2026

Endorsement Overview

HAM-AI-2025 — SUBLIMIT

Artificial Intelligence Sublimit Endorsement

Rather than excluding AI claims, applies a sublimit to AI-related professional liability claims, typically 25-50% of the policy limit.

Applies to: E&O, Cyber

Key Provisions

  • Applies sublimit (not exclusion) to AI-related claims
  • Sublimit typically 25-50% of aggregate policy limit
  • Requires AI governance documentation for full limit access
  • Includes incident response requirements for AI failures

Market Impact

A more nuanced approach than absolute exclusion. Rewards insureds with AI governance frameworks by maintaining higher limits, creating incentive for compliance.

Filing Status by State

State Filing Date Status Source
CO 2026-01-15 filed SERFF CO
CA 2026-02-01 filed SERFF CA
NY 2026-02-15 pending SERFF NY

Filing status based on carrier announcements and state DOI records. Verify filings through SERFF Filing Access.

Adopting Carrier Groups

  • Hamilton Insurance Group
  • Select Lloyd's syndicates