Pay for what you use — or bring your own AI

Writing in the editor is free. The AI actions — research, consistency, synopsis, character map — run either on credits you buy, or on your own ChatGPT/Claude through a flat monthly subscription.

Final prices are being set — exact numbers land here shortly.

Credits

Pay only for what you use.

€— per credit pack · no subscription

· Buy credits, spend them on AI actions — research, consistency checks, synopsis, character map.
· Runs on Calliope's built-in AI. Nothing to configure.
· No monthly commitment. Top up when you need to.

Start with credits

Bring your own AI

Use your own ChatGPT or Claude.

€— flat monthly · connect via MCP

· Already pay for ChatGPT or Claude? Connect it to Calliope over MCP.
· One clean flat monthly fee — no per-token surprises, no API wiring.
· AI actions run on your own model and your own quota.

Get the subscription

Rhymenoceros s. r. o. is not a VAT payer; prices are not stated as VAT-inclusive.

Try it before you pay

Open the editor and write — you only spend when you ask the AI to help.

Start writing