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Vapi opens early access to Agent Loop, a harness that builds, scores, and keeps improving voice agents

· Week 2026-W46

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On November 11, Vapi launched Agent Loop in early access. Vapi says general availability is planned for early next year. You give it a goal, instructions, knowledge, and tools, and it builds a voice agent. It scores every call against the goal, finds the calls that missed, and drafts a fix. Then it tests the fix, ships it to a slice of live traffic, checks whether the number moved, and repeats. It can adjust models, architectures, voices, configurations, and tools. The agent stays editable in the regular Vapi dashboard. Vapi says the underlying features will roll into the dashboard for existing Vapi users over the coming months. Agent Loop itself has a waitlist. No pricing was announced. Source: Vapi blog.

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