Tier B
OpenUI
Build your own agentBest for: Making your agent answer with interactive cards, forms and charts instead of plain text
Skip if: You build in Vue, Svelte or Angular and need the 1.0 features today (those runtimes stay on 0.4)
Pricing: Free, open source (MIT)
Pricing checked Oct 17, 2026 · official page · pricing source
Latest release: react-lang 1.0.1 (Oct 14, 2026)
Official site: https://www.openui.com
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