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CROSS-CATEGORY: The Stack Is Unifying, Not Specializing — Stripe, Vercel, Cloudflare, Supabase, and Notion Each Absorb Adjacent Categories
A June 2026 survey of the AI-native SaaS stack finds platforms collapsing point solutions into themselves: Stripe is now a tax engine and identity provider, Vercel ships an AI gateway, Cloudflare runs inference, Supabase competes with Pinecone on vector search, and Notion is wiki + database + internal-tool builder + AI assistant. The pattern across twenty tools is unification over specialization, which directly squeezes single-purpose SaaS in tax, identity, vector DB, and internal-tools. For builders, the moat question becomes 'which platform will absorb my category next?'
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