> ## Documentation Index > Fetch the complete documentation index at: https://docs.aiblueprint.web.id/llms.txt > Use this file to discover all available pages before exploring further. # Free Tier > Compare the one-time free preview with a seven-day trial-credit coupon. AI Blueprint has two different free-access paths. The interface identifies which one applies to your account. ## Ordinary free preview The ordinary free preview is available once to an eligible new registrant before the account completes its first plan purchase. * It generates the Blueprint from Overview through **App Map**. * It is read-only. * Documents after App Map remain locked. * The Blueprint Assistant, downloads, final approval, and **Project ZIP** are unavailable. * The preview uses the standard AI model shown in the product. If a plan payment is confirmed before the preview starts, the ordinary preview allowance ends and the paid plan becomes the active route. After a completed preview and a confirmed plan payment, choose either to regenerate the preview idea as a full Blueprint or start a new idea. ## Trial-credit coupon A trial-credit coupon is a campaign benefit, not the ordinary preview. * It adds the AI-credit amount displayed by the campaign. * It unlocks the full workspace for **7 days**, including the Assistant, approval, and export when the normal gates are satisfied. * AI actions consume the promotional credits shown in the account. * Unused promotional credits expire when the seven-day access ends. One account can redeem only one campaign coupon in total, whether it is a checkout discount, regular-credit coupon, or trial-credit coupon. A code can also have its own expiry, usage limit, or disabled state. ## When the free allowance is used The Dashboard continues to show the normal idea input. If your account no longer has eligible free access, an active package, or enough credits for the requested action, submitting the idea opens a notice with actions to buy a package or open **My Blueprints**. Existing Blueprints remain available according to their access state. An ordinary free preview does not unlock **Project ZIP**. Complete a plan payment, generate or regenerate a full Blueprint, review the current documents, and use **Sign Approve Blueprint** before export. See [AI credits and billing](/guides/credits-and-billing) for paid catalogues and [Project ZIP and coding-agent workflow](/guides/project-zip-and-coding-agent) for implementation handoff.