RadiantGPT

RadiantGPT

Create intelligent, unforgettable NPCs you can actually talk to.

RadiantGPT lets you design fully customized characters and chat with them in immersive, dynamic conversations — powered by GPT-4 streaming in real time. Whether you're building a sci-fi companion, a fantasy quest-giver, or just a therapist with a sword, your characters feel alive, stay in character, and evolve with memory.

Key Features
Build Your Own AI Characters
Set their name, role, backstory, and memory log — your NPCs will respond with unique personalities based on your inputs.
Live GPT-4 Streaming Chat
Watch responses flow in one word at a time — just like real conversation. Powered by OpenAI’s latest GPT model with 120K token memory.
Manual Memory Saving
Tap any message to add it to your NPC’s memory. Forge relationships that deepen over time.
Local-Only Privacy
Your data stays on your device. No tracking, no accounts, no servers — just your imagination.
Please note: Must bring Your Own API Key for user generated AI responses
You control everything. Enter your OpenAI key to enable advanced GPT-4 responses with no middleman.
Dark-Mode Polish
A clean, immersive black-and-white interface designed to feel as smooth as the stories you’ll tell.
How It Works
RadiantGPT doesn’t create generic chatbots. It gives you the tools to sculpt deep, reactive characters who remember, adapt, and feel real. Create a librarian who whispers spells, or a bounty hunter who never forgets a debt. The more you talk, the more they remember — and every word is yours to save.

Video demo link: https://share.icloud.com/photos/0965yqqycec1fi5dm_Q11dMMA

All content is generated using your OpenAI API key, stored securely on your device. You remain in full control of your data and prompts.

Perfect For:
Writers, worldbuilders, and storytellers
Tabletop GMs and solo RPG fans
Personal growth or creative journaling
Anyone who wants to talk to a character that feels real
RadiantGPT is not a game. It’s a forge for the people who write them.