Scored on what shipped. The overview puts every angle and an overall index in one place; the map below compares any two scores. Click a platform anywhere for its full scorecard.
Capability /100. Ten domains scored 0 to 5 against fixed anchors, weighted to 100. The buyer lens changes the weights, not the domain scores. History from 2015 uses the same anchors, so a line rises only when something ships.
Credibility /25. Cadence, roadmap transparency, say-do record, velocity and lifecycle stability, from the 2023 to 2026 release record.
Commercial risk and technical lock-in /25 each. Lower is better, so these axes are drawn reversed. Buyer risk is the two added together, out of 50.
AI leverage /20. Four strands scored per year: AI workload infrastructure, AI platform stack, AI-assisted operations and agent openness. Only GA counts; previews count half a step at most.
Ledger Index /100. A weighted blend of all parts, always shown with them. Before 2023 only capability and AI move; the other parts are held at today's values.
Idea-to-need index. Share of vision-led items among vision, customer and market-window items. 0 means demand-pulled, 1 means thesis-pushed. It is a direction, not a grade.
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