Documentation

Visit app.underwriter.dev and click Sign Up. You can register with:

• Email + password (a 6-digit verification code is emailed to you)
• Google OAuth (one-click sign-in)

After signup you land on the Dashboard. From here you can start a new AI Chat, check your credit balance, manage your subscription, and access all features.

Navigate to AI Chat from the sidebar. Type your message in the input box at the bottom and press Enter (or click Send).

Every conversation is automatically saved. You can access past sessions from the Chat History link in the sidebar. Sessions are stored as long as your account is active.

The assistant renders full Markdown — headings, lists, code blocks, tables, bold/italic — so complex answers are easy to read. Code blocks include syntax highlighting.

• Writing & editing — drafts, emails, essays, proofreading
• Research & summarization — explain topics, compare options, summarize documents
• Coding — write, review, debug, or explain code in any language
• Analysis — data interpretation, strategic thinking, decision support
• Brainstorming — ideas, naming, creative direction
• Q&A — general knowledge, how-to guidance

Each AI Chat message costs credits based on the number of tokens processed. The cost is dynamically calculated: cost_usd × 500, with a minimum of 1 credit per message. Longer conversations with more context use more credits.

1. Open AI Chat
2. Click the image icon in the chat input bar to enter Image Mode
3. Type a description of the image you want
4. Press Enter — the image will appear in the chat
5. Press Escape to exit Image Mode

A Download button appears below every generated image. Click it to save the image to your device.

• Be specific — include style, mood, color, and subject details
• Mention the aspect ratio or composition if it matters
• Reference art styles or photographers for stylistic guidance
• Iterate — generate multiple variations and refine your prompt

Image generation costs a minimum of 5 credits per image, calculated from the API cost. This is higher than text chat due to the computational requirements of image synthesis.

• Each subscription plan includes a monthly credit allocation that resets on your billing date
• Monthly credits do not roll over — unused credits expire at the end of each billing cycle
• Top-up credits (purchased separately) never expire and are used after monthly credits run out
• Your credit balance is shown in the sidebar and on the Billing page

Credit costs are dynamic and based on actual AI API usage.

Go to Settings → Billing and scroll to the Top-Up Credits section. Select a bundle and pay via Stripe. Credits are added to your account instantly after payment.

Your current credit balance is always visible in the sidebar. For a full breakdown including top-up history, visit Settings → Billing.

See the Pricing page for full details on what each plan includes.

Go to Settings → Billing and click Change Plan on any plan card. Changes take effect at your next billing date. You can also manage your subscription through the Stripe Customer Portal.

You can cancel any time from Settings → Billing → Manage Subscription. Your plan stays active until the end of the current billing period. See our Refund Policy for details.

All payments are processed securely by Stripe. We accept all major credit and debit cards. Your card details are never stored on our servers.

Invoices are emailed automatically by Stripe after each charge. You can also download past invoices from Settings → Billing → Manage Subscription (Stripe Customer Portal).

Update your display name and account preferences from Settings in the sidebar.

If you signed up with email and password, you can update your password from Settings → Security. If you used Google OAuth, your password is managed by Google.

If you had an account on the previous Underwriter platform, your account has been automatically migrated. Log in with the same email and password — your password will be seamlessly upgraded to the new system on first login.

To delete your account and all associated data, email support@underwriter.dev with the subject Account Deletion Request. Account data is retained for 90 days after cancellation before permanent deletion.

Sign in with your Google account for a seamless, passwordless experience. Google OAuth only accesses your email and profile information — we never request access to Google Drive, Gmail, or other Google services.

Connect your Vercel account to publish AI-generated websites directly to a Vercel project. Available from the Chat screen via the Publish button. You'll be asked to authorize Underwriter once via OAuth.

Connect Gmail to allow Underwriter to read, draft, and send emails on your behalf. This is an optional integration for power users. Manage connected accounts from Settings → Integrations.