Inspector Vale
Detective · noir mystery
You say you were home all night. Funny, your boots say otherwise.
The sky is your limit
Populate your games with AI characters you create
01
Define a character in minutes
Start from a ready-made template or build your own. Set their personality and speaking style, then decide exactly what they know, so they stay true to your world.
02
Your game, your rules
Describe your world once, then run as many sessions as you need, side by side. Players chat and act, your game sends world events, characters answer in character, and your game decides what happens next.
03
Pay as you play
No contracts, no lock-in, no minimum spend. You only pay for what your characters use, and you're free to scale up, scale down or walk away whenever you like.
Click a character and start chatting
Meet five ready-made characters, each with their own personality, way of speaking and limits on what they know.
Mags
Bartender · frontier saloon
Same as last time? I don't forget a face, or a tab.
Professor Ilex
Professor · academy sim
Ah, a good question. Let us see if you can answer it yourself first.
Dealer Rook
Card dealer · casino
Bold raise. You bluffed me last round too, remember?
Zeph
Relic trader · steampunk bazaar
That relic? Cheap for you. Ask me what it does and the price changes.
You write the character. We run it.
A character who stays consistent over a hundred conversations takes more than a good prompt: session state, memory, structured replies and GPU capacity behind it.
From idea to playable in four steps
One HTTPS API, any engine, nothing to install. Send what the player does, get dialogue back, and your game decides what happens next. That's the Live flow; Story mode is further down.
Game
Set up your world in the dashboard: description, genre, era, rules, setting and atmosphere. Each game comes with its own ID and API key.
Character
Give each character a personality, speaking style, goals and a default mood, plus what they know and, just as important, what they don't.
Session
Start a scene with any mix of characters and players, and set the location, situation and time of day.
Message
Send player chat, player actions and world events. Characters reply in character, or with a JSON decision such as a poker bet, and your game decides what happens next.
Runs in Unity, Unreal and Godot, and anywhere else you can make an HTTPS call.
Usage-based pricing
You pay for what characters actually use, priced per token. No seat fees, no message caps.
Input $7.50 per 1M tokens. Output $20.00 per 1M tokens. Embeddings $0.20 per 1M tokens.
Questions, answered plainly
What is AI Characters?
A developer product that lets you add AI-powered NPCs with defined personalities, speaking styles and knowledge to your game. Use them live, with replies written as people play, or in Story mode, with every branch of dialogue written ahead of release.
Does it work with Unity or Unreal?
Yes. It's a universal HTTPS API, so you call it with the HTTP client each engine already ships. No proprietary SDK to install or keep updated.
Do characters remember players?
Within a session, yes. Each session keeps the full history of what the player has said, what they've done and what's happened in the world around them. A new session starts with a clean slate.
How much does it cost?
AI Characters is priced on usage, per token, with no seat fees or message caps. Input is $7.50 per 1M tokens, output is $20.00 per 1M tokens, and knowledge-base embeddings are $0.20 per 1M tokens.
Will it scale as my game grows?
Yes. Theta EdgeCloud runs with no contracts and no lock-in, and it scales with your ambition. You only pay for what you use.
Ready to give your game a cast?
Play the demo, then create your first character. Building something bigger? Our team will help you plan it.
Talk to our team