How to use Kotonia

Browse public personas, pick a character, and speak into your mic — the AI replies with voice. Great for language practice, casual conversation, or roleplay. You can also publish your own personas.

A Colab-style chat that runs Python alongside the AI. Switch between Gemini Flash, Qwen, Llama, Gemma, GPT-OSS and other open-weight models in one screen. Tool integration and ReAct agent mode are available out of the box.

Discover public characters via overall and new-arrivals rankings. Filter by tag or use case, and start chatting with the ones that catch your eye.

Send the same prompt to multiple AI models at once and compare answers side by side. Useful for model selection and accuracy checks.

Watch multiple AI models argue about a topic you set. Useful for stress-testing ideas from multiple angles.

A chat-driven creative environment where the AI agent self-iterates image → video → self-review from your idea. For when you'd rather chat than click.

Multilingual TTS, 3-second voice cloning, and text-based voice design — all in one screen. Useful for narration, audio prototyping, and character voices.

Describe the picture you want in words, and AI generates a high-quality image for you. Useful for social media thumbnails, character illustrations, and document visuals.

Turn a single image into a short video. Make a character speak with lip-sync, or create eye-catching scenes for short-form content.

A ReAct agent that can run code and call tools to handle multi-step tasks autonomously. Free tier available (Flash-Lite, 10/day).

A cloud Linux sandbox where you can execute Python and shell commands. Also pairs with the agent for tool use.

Create and manage callable functions (tools) for AI to use. Extend the agent with custom capabilities.

A no-mercy English roleplay partner that calls out every pronunciation or grammar slip in real time. Emotional feedback locks the correction into your memory.

Create teams and share personas, custom tools, Wiki, and booking bots across members for collaborative use.

A per-group knowledge base. AI can reference what you store here to answer team-specific questions.

An AI bot that automatically takes appointment bookings and inquiries — never miss a call outside business hours.

Booking slot management for groups, including multi-staff scheduling and customer-facing pages.

AI places sales calls to a phone number list automatically. Powered by Twilio for outbound voice campaigns.

Generate image, audio and video via REST API. Issue a key at /api-manager and call with Bearer auth (OpenAI-compatible).