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KeyChat
KOEN

Pricing

Chat is free. Buy only what you need.

There is no site fee. Your key's provider bills model usage directly; KeyChat only sells character licences and server storage.

Free

₩0

No site fee

Chat right away on your own API key. Most features live here.

  • Every model (Claude, GPT, Gemini, DeepSeek, OpenRouter, local)
  • Free characters, story sets and user store characters
  • Character creator, card import, lorebooks, long-term memory
  • Unlimited chats and characters stored in your browser
  • 2 MB of server space for publishing to the user store
Start free
Popular

Characters & sets

from ₩2,900

One-time purchase · no per-chat billing

Buy a crafted official character or story set once and keep using it.

  • Keep using the purchased character's own prompt
  • Bundled sets from ₩4,900
  • Link the code to your account to restore it on other devices
  • Chat costs are still billed by your key's provider
Browse the store

Storage plus

Coming soon

More space on the site's server

Only needed when data kept on the site's server, such as the user store, goes past the free 2 MB.

  • 50 MB of server storage
  • Publish more characters to the user store
  • Browser storage stays free on every plan
  • Activated by linking a purchase code to your account
Not on sale yetHave a purchase code? Redeem it →

Full refund within 7 days if the purchase code has not been redeemed. Once redeemed, cancellation is limited because it is digital content. Refund policy →

BYOK

What does model usage cost?

Rough provider charges for an hour of roleplay (40 replies, each sending ~6,000 tokens of context and receiving 400). List prices before caching discounts, so real bills are usually lower.

ModelPer hour (est.)
Claude Haiku 5.5$0.03
GPT-6 Luna$0.03
DeepSeek Flash$0.09
Gemini 3.8 Flash$0.48
Claude Sonnet 5.5$0.64

Gemini Flash can cost nothing within Google AI Studio's free tier.

Storage

What is stored on the server?

  • Chats, your own characters, settings and API keys stay in your browser, with no size limit or fee.
  • Only characters you publish to the user store (card and image) live on the site's server and count toward your account's space.
  • The free 2 MB holds roughly 10–40 published characters with images.
  • When plus ends, published characters are kept; only new publishing past the free space stops.