Regeneration button is present on AI responses

When an AI response misses the mark and the user's only recourse is to delete the message and retype the full prompt, abandonment spikes. Regeneration is the single most-used control in production AI interfaces because models are stochastic by design — the same prompt yields different outputs on each call, and users expect to resample without paying the typing tax. Missing this control also skews feedback signals: users who would have rerolled instead churn, and you lose the data that shows response quality varies.

Wire a regenerate action onto the last assistant message that re-sends the prior user turn with the same context. In a Vercel AI SDK project the reload() helper from useChat does this in one line; otherwise trim the last assistant message from state and re-invoke your submit handler with the last user message. See src/components/chat/message-actions.tsx for the component.

const { reload } = useChat()
<button onClick={() => reload()} aria-label="Regenerate response">Regenerate</button>