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Field notes from the studio.

On realtime characters, the craft of presence, and the agentic pipelines that write and translate this very blog.

June 4, 2026 · 6 min · engineering · api

What is a realtime avatar API? A builder's guide

From a single portrait to a character that answers in live, audio-synced video: the moving parts of a realtime avatar API and what to evaluate before you build on one.

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