---
title: "Branching scenarios vs AI characters in VR training"
description: "Branching VR scenarios and AI roleplay characters compared for training teams: what each gives learners, where each needs care, and how to use both."
canonical: https://peopletechrevolution.com/learn/xr/branching-scenarios-and-ai-characters
---

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[Learn](https://peopletechrevolution.com/learn) / [XR](https://peopletechrevolution.com/learn/xr/what-is-xr)

# Branching scenarios and AI characters in VR training

Learners want more ways to respond than a script allows. What each approach gives a training team.

The request

## Learners want more room to respond

In Google’s [CHI 2024 case study](https://doi.org/10.1145/3613905.3637128) of VR inclusion training, participants asked for more agency, more conversational turns and more options for what to do next.

Two visitors wait, options between them.

A librarian gestures beside an option panel.

A practitioner moves a conversation block.

[Download the Google research paper PDF](https://peopletechrevolution.com/uploads/docs/people-tech-revolution-google-vr-inclusion-training-chi-2024.pdf)

Branching scenarios

## A script your experts sign off

Every line a character says is written and reviewed before anyone puts on the headset.

An instructor points along a route.

### What a branch gives you

Each choice leads to a scene your subject experts approved, so every learner meets reviewed material and the facilitator knows what each path covers in the debrief.

[Mater Education](https://peopletechrevolution.com/work/case-studies/mater-speaking-with-good-judgement) staff practised feedback conversations this way, in a branched recreation of real hospital rooms.

Two reviewers compare response panels.

### Where a branch needs care

The [CHI authors](https://doi.org/10.1145/3613905.3637128) call deeper scenarios the hardest area to improve, because every new way to respond means more branches to write.

AI characters

## A partner who answers in its own words

A generative AI character replies to whatever the learner says, so the conversation goes where the learner takes it.

A colleague across a meeting table.

### What an AI character gives you

More turns and more ways in, without writing each branch. PTR runs this as [AI roleplay](https://peopletechrevolution.com/ai/ai-roleplay-practice): a briefing, a live conversation, structured review against set criteria, then the same scenario again.

Two designers set markers at a boundary.

### Where an AI character needs care

The [CHI authors](https://doi.org/10.1145/3613905.3637128) call AI characters for training unproven, needing strong guardrails so replies meet the learning objective and never turn offensive in a sensitive conversation.

[NIST’s Generative AI Profile](https://nvlpubs.nist.gov/nistpubs/ai/NIST.AI.600-1.pdf) names the same risks: confident answers that are false, and harmful content.

Two people adjust controls around a model.

### How PTR sets the boundaries

Each roleplay is grounded in the organisation’s own policy and practice and runs within configurable guardrails, with human oversight and a clear path back to a person.

Choosing

## Match the method to the moment

A branch where the words must be exact; an AI partner where practice needs volume.

A visitor gestures at a service counter.

### When a branching scenario fits

The wording matters, as in a disclosure, a formal notice or a clinical handover. Assessment needs every learner to meet the same situation. The topic is sensitive enough that every reply should be reviewed first.

A practitioner raises a hand to begin.

### When an AI character fits

Learners need many attempts at an open conversation, such as feedback, a complaint or a first meeting, on a laptop or phone between sessions, with a facilitator reviewing the attempts.

Together

## Rehearse the moment, then keep practising

A scripted scene in a [VR headset](https://peopletechrevolution.com/xr/virtual-reality) for the moment itself, an AI partner for repeated practice, and a facilitator for the [debrief](https://peopletechrevolution.com/training/vr-training-and-roleplay).

Two people practise a service conversation.

A support worker rehearses a coaching talk.

A colleague across the table, arms folded.

Questions

## What training leads ask first

Harm, assessment and equipment, settled before a method is chosen.

Two colleagues review blank tokens.

### Can an AI character say something harmful?

It can. Guardrails lower the risk without removing it, so PTR grounds each character in approved material and keeps a person reviewing the practice.

A wheelchair user rehearses with a colleague.

### Which suits assessment better?

A branching scenario: its paths are written in advance, so each attempt can be assessed against criteria agreed before training starts.

A service moment rehearsed at a cafe table.

### Do learners need a headset?

[AI roleplay](https://peopletechrevolution.com/learn/ai/ai-training-roleplay) runs on a laptop or phone; immersive VR uses a headset. See [choosing the right technology](https://peopletechrevolution.com/learn/choosing-the-right-technology).

- [AI roleplay training](https://peopletechrevolution.com/ai/ai-roleplay-practice)

- [Immersive training and roleplay](https://peopletechrevolution.com/training/vr-training-and-roleplay)

- [The Google CHI 2024 study](https://peopletechrevolution.com/work/research-evidence/vr-dei-training-google-chi-2024)

- [What is virtual reality?](https://peopletechrevolution.com/learn/xr/what-is-virtual-reality)

Choosing how your team will practise?

[Open the contact form](https://peopletechrevolution.com/learn/xr/branching-scenarios-and-ai-characters#contact)
Ask our CEO Simon Lowe’s Digital Twin a question

## Sources

The paper and the risk framework, on their own sites.

### [Leveraging Virtual Reality to Enhance Diversity and Inclusion Training at Google](https://doi.org/10.1145/3613905.3637128)

Bursztein, Brown, Sanderson and Kelley, CHI EA ’24

Scenario depth, and the proposed use of AI characters.

### [Artificial Intelligence Risk Management Framework: Generative Artificial Intelligence Profile](https://nvlpubs.nist.gov/nistpubs/ai/NIST.AI.600-1.pdf)

NIST AI 600-1, 2024

The risks a generative character must be guarded against.
