~x-ai/grok-latest → B (2:1)

B delivers lasting operational value: production deploy (Docker/Fly/CI), multi-repo contributor config, emission retry, and a real audited /watch SSE progress surface with status API and tests—foundational for running the constitution itself. A is strong design (deterministic typed BlockMasker, prose ref tokenizer, braced body rules, linkify), but it is product/DSL polish plus some formatting churn, not the same system-level necessity.