Kotonia
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PRICING

Pricing that keeps
the fire in your work.

Use everything with a monthly plan, or top up only what you need. Kotonia supports both ways of working.

Best value

CHAT

Chat Plan

Unlimited in-app character chat and voice conversations. For anyone who just wants to stay immersed without counting turns.

¥500JPY / month
  • Unlimited in-app character chat and voice conversations
  • Standard-quality model (fast, natural responses)
  • Image & video generation via daily free quota + pay-as-you-go
  • Avatar (lip-sync) conversations with a gentle daily cap
  • An entry price that stays affordable for students and lower budgets worldwide
NEW

LLM

Kotonia LLM Plan

For developers who want unlimited best-effort inference from kotonia-cli or kotonia-desktop against our own GPU-hosted LLM.

¥1,000JPY / month
  • Unlimited best-effort calls to kotonia-llm-basic from kotonia-cli / kotonia-desktop, served on our own GPUs
  • Ships as a full ReAct agent — code execution and file operations, not just a bare inference API
  • 128k context — handles heavy grep and long-horizon agent workflows
  • No Anthropic / OpenAI API keys needed — everything runs on Kotonia's GPU
  • Also includes kotonia.ai chat / voice / character features

kotonia-cli and kotonia-desktop are open source on GitHub.

SUBSCRIPTION

Premium Plan

Unlock all features for a fixed monthly price. For people who want to keep moving with Kotonia.

¥10,000JPY / month
  • Everything in the Kotonia LLM Plan — unlimited best-effort calls to our GPU LLM from kotonia-cli / kotonia-desktop
  • Full kotonia.ai access: AI chat, voice, characters, articles
  • Frontier models from Anthropic / OpenAI / Google included, no per-request billing
  • Priority support + early access to new features

PREPAID

Prepaid Top-Up

Add any amount and spend only what you use. You can use it without a monthly plan.

JPY

Enter 500–100,000 yen

・Balance expires 6 months after each top-up
・Refunds are not available for customer convenience except where required by law
・If you have a monthly plan, prepaid balance is used after your monthly allowance is consumed
・Payments are securely processed by Stripe

FAQ

Frequently Asked Questions

Can I cancel anytime?

Yes, you can cancel at any time. You will not be charged again after cancellation.

What payment methods are accepted?

We accept major credit cards (Visa, Mastercard, American Express, JCB).

Do you offer refunds?

We offer a 30-day money-back guarantee. Full refund if you're not satisfied with the service.

Legal Information

Sales terms, payment terms, cancellation, and refund policies for subscriptions and prepaid balances are available in the legal disclosure page.

View legal disclosure