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Create AI Personas.
Simulate Anything.

Build personas with unique personalities. Run text-based simulations, chat solo or in groups, and explore interactive 3D worlds — on both web and mobile.

Free to start | No credit card | Free daily credits
Web App

3D worlds, text-based sims, solo & multi-chat, and custom AI flows

3D Worlds Simulations Solo & Multi-Chat AI Flows
Get Started Free
Mobile App

Text-based sims and persona chat on the go, plus a 3D worlds viewer

Simulations Solo Chat Worlds Viewer Personas
Download on the App Store
Get it on Google Play

What You Can Do

Create personas, explore 3D worlds, chat, tell stories, and build custom AI flows — all in one platform.

Create Personas

Build AI personas with unique personalities, backgrounds, and traits. Each persona remembers conversations and stays in character.

Rich personality & backstory
Consistent character behavior
Coming soon: multi-level memory
Coming soon: true agentic capabilities

Explore 3D Worlds BETA

Place your personas in interactive 3D worlds. Watch them walk around, create objects, and interact with each other in real time.

Personas walk & explore freely
Create objects in the world
Persona-to-persona interaction
Early beta — evolving fast

Text-Based Interactions

Solo chat, multi-chat, and story mode for rich text-based persona interactions. Plus build custom AI flows with our visual editor.

Solo & multi-persona chat
Interactive story mode
Custom AI flow builder
Multiple interaction modes

Your Personas, Living in 3D

Worlds brings your personas to life in interactive 3D environments. This is an early beta — and it's evolving fast.

Walk & Explore

Personas move freely through 3D environments, exploring and navigating on their own.

Create Objects

Personas can create and place objects in the world, shaping the environment as they go.

Interact with Other Personas

Personas talk, react, and respond to each other within the 3D space.

Early Beta — Evolving Fast

We're actively building. New capabilities are being added regularly.

Get Started Free

Worlds Beta Preview

Screenshot coming soon

What Will You Create?

From social experiments to interactive storytelling — see what's possible with personas and Worlds.

Social Experiments
Place personas with different personalities in a shared world and watch how they interact, form groups, and respond to each other.
Great for
Researchers, Curious Minds
Creative Worldbuilding
Design 3D environments, populate them with unique personas, and watch your world come alive as characters move and interact.
Great for
Creators, Game Designers, Writers
AI Research & Testing
Test how AI personas with different traits behave in 3D environments. Observe emergent behaviors, decision-making, and interactions.
Great for
AI Researchers, Developers
Interactive Storytelling
Create characters with deep backstories and let them drive the narrative. Use story mode for text adventures or Worlds for visual narratives.
Great for
Storytellers, Educators, Hobbyists
Social Experiments
Place personas with different personalities in a shared world and watch how they interact, form groups, and respond to each other.
Great for
Researchers, Curious Minds
Creative Worldbuilding
Design 3D environments, populate them with unique personas, and watch your world come alive as characters move and interact.
Great for
Creators, Game Designers, Writers
AI Research & Testing
Test how AI personas with different traits behave in 3D environments. Observe emergent behaviors, decision-making, and interactions.
Great for
AI Researchers, Developers
Interactive Storytelling
Create characters with deep backstories and let them drive the narrative. Use story mode for text adventures or Worlds for visual narratives.
Great for
Storytellers, Educators, Hobbyists

Free to Start. Membership to Unlock Everything.

Everyone gets a daily Flux drip — no credit card needed. Become a member to unlock the full platform and a monthly Flux stipend.

Free

$0 / month

Daily Flux drip. ~1 sim per day.

Get Started Free
  • Daily Flux drip
  • Curated simulations
  • Basic personas (PNG)
  • Watch & join worlds
Gain Exclusive Benefits

Membership

$15 / month

250,000 Flux/mo stipend + full platform unlock.

Become a Member
  • 250,000 Flux/mo stipend
  • Pack bonuses (20–35% extra Flux)
  • Metis memory & persona evolution
  • 3D avatar (GLB) generation
  • Create worlds
  • NL sim customization + quality modes
  • Google Drive & background tasks

Flux Packs

$10 – $100

One-time top-ups. PAID Flux never expires. Members earn 20–35% bonus Flux on every pack.

Buy Flux Packs
  • Starter — $10 · 500K Flux
  • Builder — $25 · 1.4M Flux
  • Creator — $50 · 3M Flux
  • Power — $100 · 6.5M Flux
  • Members get +20–35% bonus Flux

Ready to Bring Your Personas to Life?

Start free with a daily Flux drip, or become a member for 250K Flux/mo and full platform access. No credit card needed to get started.

Free: Daily Flux drip forever No credit card required Cancel membership anytime
Get Started Free

Setup takes under 2 minutes

Learn & Explore

Dive into our essays on AI simulation design or follow step-by-step tutorials to get the most out of PersonifAI.

Essays & Articles

In-depth writing on AI personas, simulation design, and the technology behind PersonifAI.

Browse Essays

Tutorials

Step-by-step guides to building personas, exploring worlds, and getting the most from PersonifAI.

Browse Tutorials

* Worlds is currently in early beta. Personas can walk, create objects, and interact with each other in 3D environments. Multi-level memory, advanced agentic capabilities, and additional world features are in active development. Text-based interactions (solo chat, multi-chat, story mode) and the AI flow builder are available now.