Quick answers,
then real humans.

Visit , pick a username, set a password, and complete the CAPTCHA. The Free plan is activated automatically — you can upgrade to a paid plan from whenever you're ready.

Use the "Forgot password?" link on . We'll send a reset link to the email you registered with. The link expires in 30 minutes; you can request a new one if you miss the window.

Yes — both are editable from . An email change requires confirming the new address by clicking a link we send to it; the change does not take effect until you confirm.

Not yet. We're adding TOTP-based 2FA in a near-term release. In the meantime: pick a long password, don't reuse it elsewhere, and rotate any CLI keys at if you suspect they've been exposed.

Every chat message costs credits, calculated from the input + output token count of the model you used. The exact rates per model are on the . Your live balance is shown in the header of the chat app and at the top of the CLI.

Subscription credits are issued at the start of each billing period and reset at the end of it — they don't roll over. Top-up credits are bought as a one-time purchase and persist as long as your account is active. We always spend subscription credits first, so any top-up balance you carry is preserved until you actually need it.

You can either upgrade your plan or buy a top-up pack. Both are at . Top-ups confirm in minutes (NOWPayments) or hours (manual crypto, after operator review).

Yes. Open any conversation, click on a message, and the metadata panel shows input tokens, output tokens, model used, and the credit cost. The CLI prints the same per-message cost inline.

caicaini/auto is the default and picks the right model for your prompt automatically. Pick caicaini/opus for the highest quality on hard reasoning tasks (most expensive), caicaini/sonnet for everyday work (balanced), and caicaini/haiku or caicaini/kimi for fast, cheap answers on simple prompts.

Auto is cost-aware: for short, factual prompts it routes to a smaller model because the answer quality is the same and you save credits. You can always override per message by selecting a model from the dropdown above the chat input.

No. We don't train any model on your inputs or outputs, and the upstream providers we use (Anthropic, Moonshot AI) are contracted to do the same. See the for the details.

Crypto, two ways: an automated NOWPayments invoice (any of ~70 supported currencies, confirms on-chain in minutes) or a manual transfer to one of our published wallet addresses (USDT-TRC20 and BTC by default; an operator confirms on the back end, usually within an hour during working hours).

For NOWPayments, "confirming" means we've seen your transaction but the network hasn't reached the required confirmation count yet. For manual transfers, it means we've seen the transaction hash and an operator is reviewing it. Both surface a live status on .

Crypto is non-reversible by nature, so we don't auto-refund. We will refund — to the originating wallet, in the same currency, net of network fees — if there's a documented service failure on our side. Reach out at the channels below and include the transaction hash and your account email.

See the full guide at . On macOS / Linux: curl -fsSL https://caicaini.com/install | bash. On Windows: irm https://caicaini.com/install.ps1 | iex in PowerShell.

Pro, Power, and Ultra. The Free and Starter plans are web-only.

Revoke it immediately at . Mint a fresh one and update your local install with caicaini auth login. We'll also revoke any key reported to us as leaked.

Account data and conversations live in our managed MariaDB database; uploaded files live in Cloudflare R2. Both are encrypted at rest. We take encrypted daily backups, retained for 30 days. The full breakdown is in the .

From the chat sidebar, hover the conversation, click the three-dot menu, and select "Delete". The conversation and its messages are removed from our database within 24 hours; backups roll off on the 30-day rotation.

From , scroll to the danger-zone section. Closure is immediate; we anonymise your conversation data within 30 days and retain only the financial audit trail for accounting and anti-fraud compliance.