Field notes from the studio.
On realtime characters, the craft of presence, and the agentic pipelines that write and translate this very blog.
September 8, 2026 · 6 min · engineering · api · product
How to test barge-in in a realtime avatar app
Test realtime avatar interruptions with repeatable voice scenarios, recordings, and clear pass criteria before choosing an API or shipping your app.
September 5, 2026 · 5 min · api · tutorial
Build a realtime avatar language-practice app in Next.js
Run a complete Next.js avatar starter, turn it into a café roleplay partner, and test the conversation with a concrete rubric. Includes source download and server-side session policy.
September 5, 2026 · 6 min · api · engineering
How to benchmark realtime avatar startup and turn latency
A reproducible measurement protocol for avatar startup, first audible reply, interruptions and failures, with downloadable Next.js instrumentation and reporting guidance.
September 5, 2026 · 6 min · api · product
Evaluating a LiveAvatar or Tavus alternative: a developer checklist
Compare realtime avatar APIs by pipeline ownership, startup, conversational behavior, integration effort and total call cost. Includes a runnable Next.js evaluation app.
September 5, 2026 · 4 min · api · engineering · product
Kling AI Avatar API: video jobs and live conversations
What Kling Avatar v2's fal endpoint accepts and returns, how it differs from a live avatar session, and what to measure before choosing an integration.
September 4, 2026 · 8 min · api · product
Renderer or full stack? How to compare realtime avatar APIs without comparing the wrong number
Tavus, Anam, Simli, bitHuman and Realtime Avatar priced per hour of live conversation — and why the category splits on architecture, not price. Verified from primary sources, 2026-09-04.
September 1, 2026 · 7 min · engineering · product · companion
Generated video that answers back: making a live avatar interactive, not just alive
A live avatar that performs on a loop is easy. One that changes course when you ask is a scheduling problem — and per-second pricing is what makes the fix affordable.
August 23, 2026 · 6 min · api · engineering · product
Integrating the AI Talking Avatar API: Principles of Realtime Embodiment
Explore the technical foundations and practical integration of an AI talking avatar API. Understand the session architecture, timing measurements and usage costs behind live conversations.
August 22, 2026 · 7 min · engineering · api · livestream
Decoding Realtime Presence: An Engineer's Guide to the AI Avatar Video API
Explore the core mechanics and practical applications of an AI avatar video API. Understand how real-time, interactive video streams empower dynamic user experiences, from customer support to immersive gaming.
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