AI Avatars — Help Center

Build, configure, and share talking AI Avatars for live conversations, generated videos, and embeds.

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Articles in AI Avatars

• Recording a training video that the engine will accept — The single biggest reason avatar training fails is the source recording — wrong framing, wrong clothing, wrong lighting. This is the recipe for a take that gets accepted first try.
• What is an AI Avatar? — A plain-English overview of the two pieces that make up every AI Avatar — the face/voice (Replica) and the brain (Persona) — and what you can do with one.
• Writing a great System Prompt — The system prompt is the single most important field when building a persona. This guide shows you the four-part structure, three worked examples, and the do's and don'ts that separate sharp avatars from generic ones.
• Anatomy of a great persona — A field-by-field walkthrough of the persona builder, in the order to fill it out, with a complete worked example you can copy.
• Choosing a Replica (the face + voice) — How to pick the right Replica for your persona — stock vs your own, what you can change later, what you cannot.
• Choosing the Intelligence Model — The intelligence model behind your avatar is a speed-vs-depth tradeoff. Here is what each option does and when to pick which.
• Adding a Knowledge Base — When to use the Knowledge Base vs the System Prompt, what file types work, how URL ingestion behaves, and the common mistakes that lead to wrong answers.
• Building Objectives — Objectives are structured goals your avatar steers conversations toward. How to write them, when to use them vs the System Prompt, and how many is too many.
• Setting up Guardrails — Guardrails are hard rules your avatar will not break. When to use them vs System Prompt boundaries, how to write them, and what they cannot do.
• Pronunciation Dictionary — Teach your avatar to pronounce brand names, technical terms, and foreign words correctly. Alias vs IPA, how rules attach to personas, and what to test.
• Writing a good Opening Greeting — The first sentence your avatar speaks sets the entire tone of the conversation. Here is how to write one that feels natural and on-brand.
• Multilingual conversations — How language picking works, when to choose a single language vs multilingual, and what the limits are.
• Behind the scenes: the settings we picked good defaults for — There are five advanced settings we deliberately do not expose because the defaults work for almost everyone. Here is what they do and when they might matter.
• Sharing your avatar (Share Links + Embed) — Two ways to put your AI Avatar in front of real visitors: per-recipient Share Links with caps and expiry, or an always-on Embed widget on your site. When to use which.
• Troubleshooting & common pitfalls — Real fixes for real problems. If your AI Avatar is not behaving the way you want, start here.

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