# Provider comparison — EM-PRD-01

Claude and Grok agree on the three-way split: two identifier-unassigned catalogue candidates, proposal-only reuse of WM-ECO-021, and a restrictive WM-ACT-008 Roadmap Item profile with no runtime identity. Both preserve Product across tariff and availability changes, keep Offering market/time scoped, separate commercial tier from Edition, and prohibit roadmap intent from becoming contractual evidence.

Grok narrows Product Family to classification rather than an independently governed commercial object. It keeps Price Plan as a versioned Offering Catalogue component and adds four promotion triggers instead of permanently denying later independent identity. It also corrects the subscription statement: subscription instance mastership belongs to an external agreement/billing domain and must reference the sold Offering plus either a Price Plan version or an accepted quote. A rate-only change versions Price Plan; packaging, entitlement cut, eligibility or market promise creates a successor Offering.

The reconciled disposition creates no identifiers. Product Catalogue and Offering Catalogue remain allocation candidates; Roadmap Item remains a profile. Publication is held on registry allocation, relation contracts, the Product/Edition/Offering/Price Plan decision tree, external subscription authority, source pins, crosswalks and unexecuted fixtures.